IPM - International Perforation Management

high-tech Engineering - Germany - Thailand - China

fax: 0049 - (0) 1212-5-375-17-531

http://www.microperforation.com

http://www.microperforation.com.cn

http://www.deguodaguan.com/ipm/

http://www.dk3qv.de

Email: sales microperforation.com

 

copyright: Mr. Werner Grosse

Patent download: http://www.microperforation.com/englishengineerreport.html

main link: http://www.microperforation.com/ipm-technology.html

 

IPM Patents

Patent data archives

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IPM - know-how, engineering, production technology, Portfolio

 

IPM – International Perforation Management - is a small size high-tech engineering company, based in South East Asia and China, specialised in developing, manufacturing and commissioning of NANO MICRO ELECTROSTATIC or LASER perforation machines as well in OPTICAL ONLINE POROVISION control systems for tipping, cigarette, plug-wrap, packaging, filter and other paper webs.

 

For small/wide web LASER perforation machines and systems we are cooperating with competent business partners in China that we are glad to present an overview about our production technologies.

 

 

E.g. the new MEGA POWER micro perforation machines PS-1200 or PS-1600 with integrated online porosity control system OPSS-1 (the whole machine with three separated perforation sections look as a three colour rotogravure printing machine) enables micro perforation of tipping, cigarette, filter, plug wrap, fine, craft, packaging or other kind of paper webs in annual production amounts up to 4000 tons by 220 C.U. or up to 1900 tons by 500 C.U.

 

More information http://www.microperforation.com - http://www.microperforation.com.cn - http://www.deguodaguan.com/ipm/

 

Honorary on the Chinese Yunnan Government http://bfe.yxrs.gov.cn/article.asp?id=2005092011030968

 

Many publications and technical reports are to find on our websites which shows competence and well cooperation with certain cigarette and printing groups in the P.R. of China and other countries.

 

 

nano, sub micro, micro, macro perforation

optical online porosity and dyne - surface tension - control at material webs

For specific details - please visit our website http://www.microperforation.com

 

Nano, micro perforation or surface treatment of substrates and diverse running webs

Material webs such as cigarette-, mouthpiece tipping paper, filter-, coated special papers, force papers, bag papers or packing papers, bonded fabrics, spun bonded non-woven, technical textiles, fabrics, laminate, etc. with base weights from 20 g/m2 to up to 150 g/m2, up to 20 g/m2 LPDE coating films, are perforated electro-statically – ESP – nano/micro or laser or mechanical micro or macro for different application purposes.

 

For a better comprehension: Electrostatic – ESP – NANO/MICRO PERFORATION are statistically irregularly distributed, varying by size up to 40 %, and analogically, under LASER or micro/macro mechanical PERFORATION, evenly arranged in diameter about the same in size, at best non-inclined holes und rows of holes of diverse arrangement.

 

 

 

For the human eye invisible electrostatic - ESP – nano or micro perforations may be arranged in areas as well as in zones with specific distances within its web. The sizes of the holes range from 1 to 120 µm in diameter and hole sequences from 1.5 to 16 million pores per second.  Arrangements of zones are usually carried out in width from 2 to 6 mm and pore density of 15 to 250 pores per cm2 whereas the perforation of areas results in pore densities of up to 2 million pores per m2. ESP perforations allow for porosity levels from 80 to 2500 C. U., width of webs from 100 to 2000 mm at web speeds of up to 500 m/min, depending on the porosity and material consistency in relation to its ability to perforate.

 

 

more details http://www.microperforation.com/online-perforation-cigarette.html

 

 

 

Laser perforation

Possible to perforate by pulsed or enlarged and focussed laser beams are hole sizes from 60 to 200 µm at density of holes of typical 10 to 30 holes per cm, hole sequences from 100.000 to 500.000 holes per second at a max. of 32 punctured rows by laser distributed over the width of the web with traditional systems or machine. Their porosity levels range from 100 to 3000 C. U., normally with web widths from 100 to 500 mm at web speeds of up to 600 m/min, depending on the porosity and material consistency in relation to its ability to perforate.

 

IPM owns development of LASER PERFORATION technology LPM-1 is patent grand and operates with quadruple beam inputs to a high power CO2 laser beam multiplexer to generate up to 200 individual laser perforation rows across the web, combines automatic laser perforation head positioning, focus setting, web speeds up to 400 m/min, web widths up to 2000 mm, up to 4,000.000 holes per second, jumbo-roll-by-roll production, optical online permeability and perforation line positioning control, porosity feedback and other features. Each laser perforation lines are archive able from 100 up to 2000 C.U.

 


The conception of high-power laser beam multiplexers enable many possibilities in other industry application fields as cutting, cut-offs, welding, surface finishing, drilling, polishing, forming, surface treatment, roughness improvement, etc. Each of the 200 single perforation head can be positioned across the running web or static positioned material. The automatic processes, equipments and devises opening completely new possibilities in industry, science, military or space laser application.

   

A new patent pending Micro Laser Line perforation technology MLL-1 generates sinus, waves, zigzags or other kinds of perforations designs as multiple pairs of micro laser lines in the web direction. Provide for tipping, cigarette, packaging or other kind of paper webs. These special features of micro laser line perforation enables fundamental new product characteristic in perforation scripts, e.g. for mouthpieces with tipping paper on cigarette filters, products indication with visible perforation holes as brand name or company logo, anti counterfeiting designs, perforation cryptogram, etc. As well is that process to use by other material, industry and application field.

 

Perforation of tipping and cigarette paper webs for ventilation of filter cigarettes

The electrostatic ESP perforation has been used more then 25 years for ventilation of non filter or filter cigarettes to create a directed and guided air bypass. For this purpose, cigarette paper for some non filter cigarettes and almost every kind of filter cigarettes tipping papers are perforated electro-statically ESP OFFLINE and in zones from 2.0 – 6.0 mm width or rows ONLINE or OFFLINE by the use of lasers in order to reduce the harmful substances such as nicotine and condensate down to allowed values. Another effect is the possibility of guiding and controlling the degree of ventilation of the Cigarettes.

 

 

Special applications and product properties with ESP electrostatic perforation

One of the foremost postulation which can be applied to many application purposes and products containing bonded fabrics, bag- or packaging papers, non-woven, etc. with gas or steam permeability but water impermeability will be found at the application stage of the ELECTROSTATIC NANO/MICRO PERFORATION TECHNOLOGY.  Which means pore sizes from 0.5 up to 10 µm diameter by up to 5 million per m2. This is due to the water’s greater surface tension which hampers the permeation through the relatively small nano or micro pores. These and other physical advantages of the relatively small pores necessarily demand the application of the ESP perforation method because alternative perforation or processes are NOT feasible, too expensive or simply uneconomical and would not lead to a successful application.

 

To archive new ESP demands IPM developed/patent grand new electronic perforation circuits which working as upward converters with IGBT’s, MOSFETS’s or HVFET’s for power pulses from 1 µs up to 25 µs, high current peaks up to 300 Amps, base frequencies up to 200 KHz on ferrite transformers to generate 50 KVss to each sparking electrode.

 

Optical online permeability or porosity control

Since naturally porous web materials or web materials to be perforated are processed with speeds of up to 600 m/min and web widths of up to 2000 mm are used, a pneumatic porosity measuring, hence measuring whilst touching the web are highly difficult. Further difficulties of pneumatic measurements are the disadvantages of rising of web tension, material abrasion, folding, leakage at measuring head, impurities, non linear processing and calibration problems.

 

 

 

Thus, optical measuring offers better ways for transmission measuring the pneumatic static permeability for naturally porous or nano, micro or macro perforated webs. The conditions mentioned above can be easily met by using the optical porosity measuring technology thanks to the mentioned product processing and online control, extremely small pore dimensions, relatively high track speeds and a good value repetition.

That full independent from principle material facts as consistence, thickness, weight, colouring, formation, smoothness, brightness, opacity, and other influences.

 

 

Therefore, IPM – International Perforation Management – has developed a number of new, patent pending, stationary and transverse optical measurement processes and systems which working with multiple colour sensors, a precision line laser, scanning speeds from 20 – 200 mm per second, porosity ranges from 80 up to 3000 C.U., perforation lines detection by 0.1 mm, nano/micro holes sizes from 0.5 up to 2000 µm diameter and up to 250 holes/cm2 to determine all data in real time with an internal controller unit in order of multiple light transmissions and perforation profiles to determine envelope curves as well porosity integrals.

 

 

Thus direct feedback into the perforation system makes it possible to compensate any changes in terms of porosity and perforation locations so that each jumbo production roll up to 25,000.00 meters as well single or quadruple bobbin sets can be produced/controlled without intermediate stops and certificated in quantity und quality on their end.

 

Future prospects

The electrostatic ESP nano or micro perforation usually applies within ranges of the refinement of fine paper, packaging webs, bonded fabrics, non woven, filter paper, bag or force paper as well as special paper webs of most diverse kind especially when additionally treating course materials for achieving special characteristics which for physical or process reasons cannot be achieved by other process technologies.

 

Our highly modern, industrially approved ESP perforation technology operation which even can be relied on when operated 24/7 can be integrated into existing rewinding course devices or other course devices. Also, they can be used as completely independent perforation devices.

 

New ranges of applications will be made accessible as new products with special features will be developed.

 

more details http://www.microperforation.com/opss-1-optical-online-porosity.html

 

 

High-power laser multiplexer for many industry applications as well for wide web micro perforation machines LPM-1 with tipping, packaging paper, non-woven, spun-bonded, textile, plastic films or other material substrates

Patent grant DE102004001327

 

Patent download: http://www.microperforation.com/englishengineerreport.html

 

Introduction

A German-Thai-Chinese high-tech engineering company offers completely new possibilities with high power CO2 laser multiplexers for wide web applications as well for micro perforation with JUMBO-ROLLS with up to 200 individual laser perforations rows, automatic laser perforation head positioning, focus setting, web speeds up to 400 m/min, web widths up to 2000 mm and more. Several types of material web, e.g. paper, packaging, coated sheets, films, foils, metal sheets and other types of substrates can be micro perforate or treated. We are seeking for R&D, science or industrial partners in licence agreement, technical cooperation, new product or applications in USA and EU.

 

Working principle of high-power laser multiplexer

Through 2/4 KW dual laser beam sources, two or four level high-power laser multiplexers designed for certain wave lengths from 500 nm up to 10.6 µm, new two level rotary cubic elements, or two quadruple beam splitters or polygons bent facets, using of new developed CO2 hollow waveguide fibres realizable up to 200 optical single channels with assembled focus heads direct on the production web material. Without very extravagant, expensive of optical elements, alignments, lenses, divert mirrors, extended mechanical designs, etc.

Pulse sequences up to 4,000,000 per second, single shoots between 0.5 up 3.0 mJ, time windows from 1 µs up to 100 µs and e.g. holes sizes from 1 µm up to 100 µm or microns are possible.

 

Description for wide web micro laser perforation

Wide web laser perforation processes, equipment and machines permits e.g. tipping or packaging paper web width up to 2000 mm and more, up to 200 single laser rows across the web by holes sequences up to 4,000,000 per second. Depends of material consistence, perforability, holes sizes and densities web speeds up to 400 m/min, web widths up to 2000 mm, 25,000 meter roll-by-roll, automatic perforation head positioning and focus control, up to 20 bobbins in one cut which means up to 160 bobbins are now archive able without machine downtime. In addition the key element and integrated OPSS-1 porosity/position scanning system complete the feed-back and robot control system. The optical online multi sensor porosity/position control system OPSS-1 is located just behind the laser perforation section and rewind stand to control the perforated material web continuously and supply the data stream to the master PC and close loop.

Highly automated and motor adjustable focusing optics one each perforation heads are free position able across the material webs. That automatic procedure and their robot devices open now fully new ways in wide web laser perforations or other material treatments in high speeds ranges, large number of optical single channels and high pulses or holes sequences.

In addition with the optical online control systems OPSS-1 porosity, hole qualities and all hole row positions are continuously controlled and differences immediately compensate over master PC controlled feedbacks to the perforation system. Production rolls and products are finished without intermediate stops in high qualities and large quantities.

 

Other applications

The new high-power laser beam multiplexer open many other application fields, e.g. cutting, cut-offs, welding, surface finishing, drilling, polishing, forming, surface treatment, roughness improvement, etc.

Each of the 200 single perforation head can be positioned across the running web or static positioned material substrate. This automatic processes, equipments and devises open up completely new possibilities in industry, science or military or space laser applications.

 

 

 

 

more details http://www.microperforation.com/lpm-1.html

 

 

MLL-1 – nano micro laser line perforation for web material as paper, metal or many other substrates and applications

Patent pending: DE102004012081

 

Introduction

The German engineering company offers an innovative type of NANO and MICRO LASER LINE PERFORATION technology - that is world wide new. That type of perforation for web, sheet or substrate materials allows a high level of freedom in holes positioning with a variety of perforation designs as wave shapes, zigzag lines etc.

The special characteristics of the technology create fundamentally new product properties. It is adaptable to existing systems. They are looking for industrial partners of license agreements and/or technical co-operation.

 

Description

Conventional off line laser perforation machines and processes generating straight hole lines in the web direction of the cigarette tipping paper – as coaxial shape - or other material sheets. The exception is spray laser designs with randomly distributed holes in certain zones such as electrostatic perforation.

The new nano micro laser line perforation technology generates sinus, waves, zigzags or other kinds of lines of perforations hole in web direction as pairs of micro laser lines.
Tipping paper is the paper around the cigarette filter.

Various new elements move each single laser beam in a sideways direction.

Product and process advantages

 

Existing and new laser perforation machines/systems

 

Applications and summary
The nano micro laser line perforation MLL-1 of web or sheet materials - such as any kind of paper, metal, insulation, plastic - allows a high level of freedom in hole positioning freedom with different perforation designs in the form of waves, zigzag lines or other which result e.g. in optimized air distribution characteristics in cigarette filters.
The special features of the nano micro laser line perforation create fundamentally new product properties, e.g. final products for mouthpieces with tipping paper on cigarette filters or other products of this kind which indicate a brand name and is recognize able for everyone - if the holes are visible or can be seen with a magnifying glass. Or anticounterfying and non copy able.

Just like a perforation cryptogram. This is performed by means of Piezo oscillators for laser beam deflections, as actuators with added metal optics or asymmetrical, rotary reflection cones. Mathematical functions and sequences are coupled by web speed.
The points of envelope curves of the selected perforation shape are calculated and computed beforehand for the single holes and hole groups and monitored during the perforation procedure by a programmable control system.

Innovative Aspects
MLL-1 nano micro laser line processes allow many applications with certain beam diverts.

Main Advantages
Use of new beam divert elements allows easy and attractive modifications to existing laser systems.

 

 

 

 

more details http://www.microperforation.com/mll-1-laser-perforation.html

 

 

IGBT dual high power, high frequency, high voltage switching units

Patent grant DE10328937

 

Introduction

On a high level operate engineering company develops a dual, high power, high frequency switching unit which works with hybrid drives, compact EMI safe semiconductor stages, supporting capacitors, high voltage ferrite transformers to generate HV short pulses and sparking groups. Advantages are based on uses of standard circuits with extended semiconductors for e.g. nano, sub or micro perforation applications, corona treatments etc. The company is looking for science or industrial partners who are interested in a licence agreement and / or technical co-operation.

 

Working principle

Industry application of electrostatic perforation for fast running paper webs using IGBT, MOSFET or HVFET semiconductor power stages. These circuits working as upward converters with power pulses in ranges from 5 µS up to 25 µS and high current peaks up to 300 Amps on a serial connected inductivity and loading capacity that the secondary ferrite transformer coils supply sparking electrodes up to 50 KVss.

The circuit works itself with alternating clock frequencies and changes of pulse widths a common load condenser and coupled primary inductance of a ferrite high voltage transformer as upward power/pulse converter and non resonance frequency operation.

A safety circuit logic and two hybrid drivers allows a alternately switching of semiconductor A and B which generating higher operation frequencies and power levels meanwhile the electrical and thermal conditions remains on each in the same range as a single switching unit.

 

Circuit advantages

A controlled pulse timing into a certain time window with a constant or variable frequency generating hole sizes and hole sequences with high voltage sparking through the material webs by nano or micro perforation. The repeating frequencies of the entire circuit can up to the double switching frequency as of each semiconductor stage.

A changeable current in the spark channel are feasible with total switching frequencies up to 150 kHz. And in the same time the dual semiconductor switching unit allows a double power level as just only with one switching element is possible.

Dual IGBT, HVFETS or MOSFETS semiconductors in high power, high current, high voltage circuits obtain in electrostatic nano, sub micro perforation, corona treatment or other switching application frequencies up to 250 KHz, power levels up to 30 KW and more. Higher power efficiencies and harder switching periods are further advantages.

In conclusion the approximately double frequency and power level operation obtains higher switching efficiencies, much more perforation power or higher corona treatment levels which are depend of the industry application.

 

Nano, Sub Micro Perforation

Perforation results are now achieve for nano, sub and micro perforation of flexible webs with ultra small pores and products made of these materials. Materials finishing are of interest for numerous demands in the field of packaging, in filling, non wovens industry, technical and science applications, etc. For many years fine and other paper webs with base weights between 20 up to 150 g/sqm have been perforated electro statically in large surface all over areas or zone designs of 2.0 – 6.0 mm width.

Pore sizes from 0.5 µm - 60 µm or 1 to 100 microns, pore distributions of up to 4 Million per sqm in area perforation or respectively 3OO holes per sqcm by zone perforation and hole sequences up to 16 Million per Second can be reached. Air permeabilities or porosity ranges are among from 50 up to 2,500 C.U. (ml/sqcm/min) respectively 3 to 50 l/sqm/sec. (Franksystem ) by paper web speeds up to 450 m/min and web widths up to 1200 mm are archive able.

 

Application fields

Electrostatic perforation processes and machines, corona treatment, surface treatment, high power switching devices, power supplies, AC&DC and other switching converter systems, drives, etc.

Fine paper, cigarette, packaging or other fine paper industries, corona system manufacture, switching device manufacture, high-power converter equipment, AC/DC, DC/AC industry etc.

The new dual semiconductor circuit design allows applications to build hybrid drives, semiconductor high-level stage, upward, downward or other converters or generators which operating with supporting capacitors, high-voltage ferrite transformers in an extremely compact and modular design. Several advantages are the high efficiency of pulse/power transmission and energy ratios.

Traditional corona or other type of medium generators up to 30 KHz operation ranges are easy to modify to a double frequency and power levels operation.

 

 

 

 

more details http://www.microperforation.com/igbt-esp-unit.html

 

 

Optical online OPSS-1 porosity, permeability scanning systems for substrates

Patent pending DE10251610 – China as well

 

Introduction

A German-Thai high-tech, engineering company has developed an optical online porosity or permeability scanning system. It works with two different multiple sensors units, i.e. precise line laser, colour sensors and internal controller unit for real-time positioning and porosity control in light transmission mode whilst scanning across the fast running webs up to 600 m/min.

The main advantage compared to existing technologies is the measurement of perforation zone/line positions and porosity levels in the same time while the scanner system across the running material web up to 2000 mm width.

Science, R&D, Universities, industrial partners for a licence agreement and / or technical cooperation are sought.

 

Working principle

The porosity control of natural porous and/or perforated web material in laser or electrostatic perforation systems which are produced in speed ranges up to 600 m/min and web widths up to 2000 mm is difficult to measure with pneumatic systems because of following disadvantages: web tangency, web toughing, material flaking, formation of folds, dust and dirt entering the system.

These difficulties can be overcome with stationary or scan, optical porosity measurement systems for porosity ranges from 80 up to 5,000 Coresta units (ml/2cm2/min) respectively 3 to 50 l/m2/Sec. (Franksystem) by nano, micro or macro holes sizes from 0.5 up to 500 microns and hole densities from 10 macro holes per cm up to 400 holes per cm2

The optical online porosity control technology is designed to scan perforation zones with a multiple sensor and their positions with a precision line laser to determine all data in real time with an internal controller unit. It controls roll material or bobbin formats, either as a stand-alone unit or mechanically coupled with existing scanning units which measure the material weight, thickness, opacity, density, brightness, smoothness, formation, etc.

By laser and electrostatic perforation in bobbins and wide paper web formats optical online control processes and their devices are indicated with transverse movements across the web and simultaneously collections of perforation positions and porosities by two different sensor systems.

Both measuring systems move transversely between 50 up 400 mm/Second over the fully web width. They consist of a line laser detect the quality and position of single holes, groups of holes or defined perforation zones into the measuring gap of 5.0 mm. At the same time, the multiple light transmission sensors monitor all porosity profiles and determines envelope curve and calculate the integrals.

 

Applications and Advantages

Thus direct feedback into the perforation system makes it possible to compensate any changes in terms of porosity and perforation locations so that each jumbo production roll up to 25,000.00 meters as well single or quadruple bobbin sets can be produced and controlled without intermediate stops and certificated in quantity und quality on their end.

Natural porous or perforated web material as cigarette, tipping, plug-wrap, filter, packaging, non-woven, flees, coated paper as well micro or macro perforated plastic films as BOPP, LDPE, PP, EVA, HDPE, etc. are controllable with the OPSS-1 scanning system.

 

 

more details http://www.microperforation.com/opss-1-optical-online-porosity.html

 

 

Optical dyne and surface tension control at running plastic films or other substrates

 

patent download: http://www.microperforation.com/englishengineerreport.html

 

The former patent application DE19542289 A1 concerns a method and device for optical dynamic, i.e. a non-contact, in-line surface-tension / surface-energy measurement for running substrates whereby the detection can be in the transverse-direction or in the running-direction of the web.


In the context of this invention, running substrates or moved web material is to be especially understood as being plastic films like PE, PP, LDPE, HDPE, LLDPE, EVOH, PTFE, PET, PS, PMMA, PBMA, PVC, PA and also laminated or coated film or paper webs which still show a measurable optical transmission in the wavelength range of 1200 to 2200 nm.

A higher material wetting capacity, respectively, a higher material adhesion capacity, which can be achieved by increasing the surface tension, is demanded in many application cases for better printability, coatability or adherence capacity during the manufacture, finishing, printing and processing of running substrate webs.

Described is a method and device for optical dynamic in-line surface-tension measurement in ranges from 30 dyne up to 60 dyne in which a substrate web running vertically through a measuring gap is subjected to a chromatic light transmission from two optical channels displaced by 90° to each other. This light transmission is detectable by two optical detection systems located on the other side of the web.
Material specific wavelength selection, light transmission angle changes, polarisation slot diaphragms and transverse displacements of the light beam feeder along the optical X-axis result in extreme scattering and diffraction of the IR light photons in the boundary layer area on both sides of the sub-nano layer within the substrate web. Their transmitted light intensity enables, after detection and evaluation, the determination of a direct relationship to the absolute surface tension.
And this entirely independent of the material-specific influences like: material and surface consistency, crystallinity, thickness, density, structure, polar grouping, temperature and type of pre-treatment.

 

Introduction
Non-contact, realtime and in-line operation surface-tension or surface-energy dyne - measuring systems for running webs as like plastic films in general, coatings, laminates etc. does not exist world-wide. Due to the broad application field of surface-treated or surface-non-treated webs of plastic film, non-woven fabric, laminates or coated paper, there is unimaginable market potential here in respect of the in-line process measuring of the surface tension - dyne - and an in-line control of the dyne treatment level and moderate quality control.

 

Various companies from the abroad are serious interested in project co-operation, system development, prototype making and testing, manufacturing and world-wide sales, system purchasing and licensing in respect of the ODSTM-1 Process Measuring System.
 

Actual projects situation of the ODSTM-1 development project

Further information concerning publications, patents and engineering reports are specified in the above mentioned applications. Several spectral measurements as well the feasibility study with well known optical institutes are positive done. Furthermore some significant modifications and breakthrough of the base ODSTM-1 measuring process with the using of state-of-the-art monolithic spectrometers and PC support. Specific information about the actual development and project status of the ODSTM-1 system on request.

 

Concerning the actual ODSTM-1 development and project status – after a certain developments

Base data of Opto-Dynamic Surface-Tension Measuring system ODSTM-1


 · web widths : up to 6000 mm
· web speeds : up to 600 m/min
· substrates : PE, PP, HDPE, LDPE, PET, EVA, BOPP, etc.
· surface-tension measuring range : 30 - 55 mNm
· resolution, respectively, reproduction : +/- 0.5 mNm
· single-sided or double-sided measurement of the treated or untreated sides of the film
· IR wavelength range : 1200 nm - 1800 nm
· mode of operation : dual scattered-light/multiple-sensor system with variable wavelengths in transmission mode
· measuring method : similar to ellipsometry
· measuring gap : approx. 5 - 20 mm
· stationary and/or web-traversing measuring head
· optical fibre waveguide feed to measuring head system
· spatially remote, highly-stable IR light source with beam processing
· wavelength variation via a monolithic optical converter
· industrial PC, multiple-processor system, data recording, data analysis, product documentation, statistics, etc.
· actual-value output : analogue 0 - 10 V via optical fibre or serial RS 232, etc.

 

CONCLUSION
Described is a method and device for opto-dynamic in-line surface-tension measurement in which a substrate web running vertically through a measuring gap is subjected to a chromatic light transmission from two opto-channels displaced by 90° to each other. This light transmission is detectable by two optical detection systems located on the other side of the web.
Material specific wavelength selection, light transmission angle changes, polarisation slot diaphragms and transverse displacements of the light beam feeder along the optical X-axis result in extreme scattering and diffraction of the IR light photons in the boundary layer area on both sides of the sub-nano layer within the substrate web. Their transmitted light intensity enables, after detection and evaluation, the determination of a direct relationship to the absolute surface tension.
And this entirely independent of the material-specific influences like: material and surface consistency, crystallinity, thickness, density, structure, polar grouping, temperature and type of pre-treatment.

 

Several spectral results - http://www.microperforation.com/odstm-1-optical-dyne-control.html

 

Test results

 

 

 

 

 

Patent links

For more information - please visit our website