WO1996026412A1 - Gleitplatte - Google Patents
Gleitplatte Download PDFInfo
- Publication number
- WO1996026412A1 WO1996026412A1 PCT/EP1996/000601 EP9600601W WO9626412A1 WO 1996026412 A1 WO1996026412 A1 WO 1996026412A1 EP 9600601 W EP9600601 W EP 9600601W WO 9626412 A1 WO9626412 A1 WO 9626412A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- sliding plate
- measured
- groove
- compressed air
- plate according
- Prior art date
Links
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B7/00—Measuring arrangements characterised by the use of electric or magnetic techniques
- G01B7/02—Measuring arrangements characterised by the use of electric or magnetic techniques for measuring length, width or thickness
- G01B7/06—Measuring arrangements characterised by the use of electric or magnetic techniques for measuring length, width or thickness for measuring thickness
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
- B25B—TOOLS OR BENCH DEVICES NOT OTHERWISE PROVIDED FOR, FOR FASTENING, CONNECTING, DISENGAGING OR HOLDING
- B25B11/00—Work holders not covered by any preceding group in the subclass, e.g. magnetic work holders, vacuum work holders
- B25B11/005—Vacuum work holders
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B5/00—Measuring arrangements characterised by the use of mechanical techniques
- G01B5/0002—Arrangements for supporting, fixing or guiding the measuring instrument or the object to be measured
- G01B5/0004—Supports
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B5/00—Measuring arrangements characterised by the use of mechanical techniques
- G01B5/0002—Arrangements for supporting, fixing or guiding the measuring instrument or the object to be measured
- G01B5/0007—Surface plates
Definitions
- the present invention relates to a sliding plate according to the preamble of claim 1
- Such a sliding plate is preferably used in the thickness measurement of a moving material to be measured, for example a paper web, the distance of a target arranged on the material to be measured or floating thereon on an air cushion, for example a ferrite core, being detected by an oscillator coil arranged in a recess in the sliding plate below the material to be measured is, so that there is a measure of the thickness of the material to be measured.
- a suction device in this case comprises a venturi nozzle outside of the slide plate, the negative pressure generated by the venturi nozzle being conducted via hose lines and bores to the surface of the slide plate.
- Such a device can be found, for example, in DE 37 29 318 C2 It was found that not only air but also dust is sucked in through these holes and hose lines. To prevent blockage, the compressed air was therefore periodically directed in the opposite direction through the hose line and holes
- the present invention aims to design such a slide plate in such a way that the problem of dust formation, dust accumulation and clogging does not occur
- FIG. La shows a measuring device with a sliding plate according to the prior art
- Figure 1b is a plan view of the slide plate.
- FIG. 2 shows a known device for generating negative pressure
- FIG. 3 a shows a part of the measuring device with a slide plate according to the invention
- FIG. 3 b shows a plan view of the slide plate according to the invention
- 3 c shows a vertical section along the line A-A in FIG. 3 b through the slide plate according to the invention
- a known thickness measuring device 10 for a moving sample 12 comprises a ferrite body 14 which bears directly on the sample 12 or via an air cushion.
- a sliding plate 16 is arranged beneath the sample 12 and has a measuring coil 22 controlled by an oscillator 20 in a central bore 18
- An evaluation electronics 24 is connected to the oscillator 20, which supplies the measurement signal Concentrically to the bore 18, an annular groove 26 is incorporated into the surface of the slide plate 16, which is connected via holes 28 and vacuum lines 30 to a device 32 which is a vacuum in the annular groove 26 generated so that the material to be measured 12 is held against the sliding plate 16 as it moves past.
- the vacuum generating device 32 consists, in a known manner, of a tube 34 into which a venturi nozzle 36 is fed in the longitudinal direction, which is fed with compressed air, so that a negative pressure is generated on the inlet side of the tube 34
- a sliding plate 16 ' according to the invention is shown.
- this sliding plate 16' viewed from above, two V-shaped grooves 38 are incorporated, which extend in the direction of movement of the measured material 12 and are arranged on both sides of the measuring coil 22.
- the grooves 38 are connected to the compressed air via holes 28 '.
- the holes 28' are bent at right angles, so that they flow into the narrow end of the grooves 38 from the end face.
- the enlarged end of the groove 38 merges into the side surface of the slide plate 16 ', see above that the compressed air can escape at these points.
- these grooves form in the direction of flow of the air a channel which widens in cross section and, due to its design, produces the Venturi effect and thus the suction effect without the danger that the channel is blocked by dust particles. Rather, such dust particles are simply discharged laterally through the channels 38 from the compressed air It is obvious that instead of the two grooves described in the exemplary embodiment shown, any other number of grooves can also be provided, the length of these grooves also being able to vary.
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- A Measuring Device Byusing Mechanical Method (AREA)
- Investigating Strength Of Materials By Application Of Mechanical Stress (AREA)
- Adjustment Of The Magnetic Head Position Track Following On Tapes (AREA)
- Sheets, Magazines, And Separation Thereof (AREA)
- Sampling And Sample Adjustment (AREA)
Abstract
Description
Claims
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB9716814A GB2313877B (en) | 1995-02-24 | 1996-02-13 | Sliding plate |
US08/894,011 US5918376A (en) | 1995-02-24 | 1996-02-13 | Gliding plate |
SE9702934A SE513285C2 (sv) | 1995-02-24 | 1997-08-14 | Glidplatta där komprimerad luft skapar partiellt vakuum och dess användning för tjockleksmätning |
FI973448A FI109376B (fi) | 1995-02-24 | 1997-08-22 | Liukulevy |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19506470.4 | 1995-02-24 | ||
DE19506470A DE19506470C2 (de) | 1995-02-24 | 1995-02-24 | Gleitplatte und deren Verwendung |
Publications (1)
Publication Number | Publication Date |
---|---|
WO1996026412A1 true WO1996026412A1 (de) | 1996-08-29 |
Family
ID=7754938
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/EP1996/000601 WO1996026412A1 (de) | 1995-02-24 | 1996-02-13 | Gleitplatte |
Country Status (6)
Country | Link |
---|---|
US (1) | US5918376A (de) |
DE (1) | DE19506470C2 (de) |
FI (1) | FI109376B (de) |
GB (1) | GB2313877B (de) |
SE (1) | SE513285C2 (de) |
WO (1) | WO1996026412A1 (de) |
Families Citing this family (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE19913928B4 (de) * | 1999-03-26 | 2015-06-11 | Voith Patent Gmbh | Vorrichtung zum Bestimmen von Eigenschaften einer laufenden Materialbahn |
DE20003772U1 (de) * | 2000-03-01 | 2001-07-19 | Prüftechnik Dieter Busch AG, 85737 Ismaning | Adapter zum Überprüfen der winkelmassigen Ausrichtung einer präzise zu lagernden Walze |
FI114337B (fi) * | 2001-07-03 | 2004-09-30 | Metso Automation Oy | Menetelmä ja mittalaite liikkuvan rainan ainakin yhden ominaisuuden mittaamiseksi |
DE102004039652A1 (de) * | 2004-08-11 | 2006-02-23 | Octagon Process Technology Gmbh | Dickenprofilmessgerät für dünnschichtige Messobjekte |
US8760669B2 (en) | 2011-09-30 | 2014-06-24 | Honeywell Asca Inc. | Method of measuring the thickness of a moving web |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3855524A (en) * | 1972-09-05 | 1974-12-17 | Industrial Nucleonics Corp | Measuring gauge with air bearing and resistant to tilt |
EP0064325A2 (de) * | 1981-04-20 | 1982-11-10 | AccuRay Corporation | Messinstrumente |
DE3729318A1 (de) * | 1987-09-02 | 1989-03-16 | Mader Gmbh | Hubvorrichtung |
US4901445A (en) * | 1989-04-17 | 1990-02-20 | Measurex Corporation | Aerodynamic caliper gauge |
Family Cites Families (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3818327A (en) * | 1972-09-05 | 1974-06-18 | Industrial Nucleonics Corp | Measuring gauge with support for holding measured sheet and discharging foreign matter |
US4107847A (en) * | 1977-03-03 | 1978-08-22 | Measurex Corporation | Contacting caliper gauge |
IT1129066B (it) * | 1980-02-26 | 1986-06-04 | Fiat Ricerche | Dispositivo per misura non distruttiva dello spessore di uno strato superficiale di un corpo sottoposto ad un trattamento di modifica della propria struttura superficiale |
US5063682A (en) * | 1989-04-17 | 1991-11-12 | Measurex Corporation | Aerodynamic caliper gauge |
US5075979A (en) * | 1990-05-31 | 1991-12-31 | Measurex Corporation | Aerodynamic caliper gauge |
DE4105388C2 (de) * | 1991-02-21 | 1994-04-28 | Werner Bonnet | Vorrichtung zum Ergreifen und Transportieren von Gegenständen |
US5479720A (en) * | 1994-01-21 | 1996-01-02 | Abb Industrial Systems, Inc. | Methods and apparatus for measuring web thickness and other characteristics of a moving web |
-
1995
- 1995-02-24 DE DE19506470A patent/DE19506470C2/de not_active Expired - Fee Related
-
1996
- 1996-02-13 GB GB9716814A patent/GB2313877B/en not_active Expired - Fee Related
- 1996-02-13 US US08/894,011 patent/US5918376A/en not_active Expired - Fee Related
- 1996-02-13 WO PCT/EP1996/000601 patent/WO1996026412A1/de active IP Right Grant
-
1997
- 1997-08-14 SE SE9702934A patent/SE513285C2/sv not_active IP Right Cessation
- 1997-08-22 FI FI973448A patent/FI109376B/fi active
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3855524A (en) * | 1972-09-05 | 1974-12-17 | Industrial Nucleonics Corp | Measuring gauge with air bearing and resistant to tilt |
EP0064325A2 (de) * | 1981-04-20 | 1982-11-10 | AccuRay Corporation | Messinstrumente |
DE3729318A1 (de) * | 1987-09-02 | 1989-03-16 | Mader Gmbh | Hubvorrichtung |
US4901445A (en) * | 1989-04-17 | 1990-02-20 | Measurex Corporation | Aerodynamic caliper gauge |
Non-Patent Citations (1)
Title |
---|
ANONYMOUS: "Pneumatic Paper Sensor. January 1972.", IBM TECHNICAL DISCLOSURE BULLETIN, vol. 14, no. 8, January 1972 (1972-01-01), NEW YORK, US, pages 2360, XP002005523 * |
Also Published As
Publication number | Publication date |
---|---|
SE513285C2 (sv) | 2000-08-14 |
DE19506470A1 (de) | 1996-08-29 |
GB2313877B (en) | 1999-04-14 |
US5918376A (en) | 1999-07-06 |
FI109376B (fi) | 2002-07-15 |
FI973448A0 (fi) | 1997-08-22 |
GB9716814D0 (en) | 1997-10-15 |
FI973448A (fi) | 1997-08-22 |
SE9702934D0 (sv) | 1997-08-14 |
GB2313877A (en) | 1997-12-10 |
SE9702934L (sv) | 1997-08-14 |
DE19506470C2 (de) | 1998-07-02 |
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