WO1996035105A2 - Vorrichtung zur ermittlung von auf einen messkopf wirkenden kräften und deren verwendung - Google Patents
Vorrichtung zur ermittlung von auf einen messkopf wirkenden kräften und deren verwendung Download PDFInfo
- Publication number
- WO1996035105A2 WO1996035105A2 PCT/DE1996/000819 DE9600819W WO9635105A2 WO 1996035105 A2 WO1996035105 A2 WO 1996035105A2 DE 9600819 W DE9600819 W DE 9600819W WO 9635105 A2 WO9635105 A2 WO 9635105A2
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- measuring
- measuring head
- feed path
- drive
- unit
- Prior art date
Links
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N3/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N3/40—Investigating hardness or rebound hardness
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B3/00—Measuring instruments characterised by the use of mechanical techniques
- G01B3/002—Details
- G01B3/008—Arrangements for controlling the measuring force
-
- 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
- G01B7/001—Constructional details of gauge heads
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01D—MEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE; ARRANGEMENTS FOR MEASURING TWO OR MORE VARIABLES NOT COVERED IN A SINGLE OTHER SUBCLASS; TARIFF METERING APPARATUS; MEASURING OR TESTING NOT OTHERWISE PROVIDED FOR
- G01D5/00—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable
- G01D5/54—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable using means specified in two or more of groups G01D5/02, G01D5/12, G01D5/26, G01D5/42, and G01D5/48
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2203/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N2203/003—Generation of the force
- G01N2203/005—Electromagnetic means
- G01N2203/0051—Piezoelectric means
Definitions
- the piezoelectric actuator is pretensioned when it approaches the actual measurement object, until it is touched, by applying a voltage in order to avoid damage in the feed phase. Only after detection of a touch, before the measuring process, is the piezoelectric actuator returned to the starting position.
- measuring methods can also be used to determine the feed path of the measuring head.
- Known distance detection systems such as a microwave system, a resonance probe, capacitive or inductive sensors, can be used for this.
- strain gauges applied to foils to determine the distance or the feed path of the measuring head.
- the feed movement is transmitted from the units of the measuring head drive to the measuring head by rotation, this is advantageously carried out via a drive shaft which is axially and radially free of play in the housing and which is prestressed in the feed direction.
- the drive shaft is driven once by the unit with a small feed path resolution or the unit with a medium feed path resolution.
- the feed which is implemented with the piezoelectric actuator, takes place exclusively in a translatory manner, due to its geometric extension.
- the device can also be operated automatically using stored test programs, for example for series measurements.
- Various operating modes can be selected and carried out with the device according to the invention.
- One mode of operation is the path-dependent control. It can be carried out once with the units of the measuring head drive which have the smallest feed path resolution, the unit with the medium feed path resolution or the large feed path resolution. In both cases, the travel path is specified via an input unit, ie once for the rough setting of the feed path, the position to be controlled by the electromagnetic drive and for the somewhat finer feed movement setting, the position to be controlled by the piezoelectric drive.
- Figure 4 is a force-displacement diagram measured on two rubber balls
- the measuring head drive is formed from two units 17 and 18, the unit 17 having a small feed path resolution and the unit 18 having a large feed path resolution.
- a force detector 15 is arranged in front of the two units 17 and 18, which detects the force caused by the feed movement and which acts on the test probe 20.
- the force detector 15 is preferably designed such that it can detect both compressive and tensile forces.
- the function of the device according to the invention can be described with the aid of the block diagram shown in FIG.
- the control and activation of the measuring processes which are carried out with the The device can be carried out, for example, using a known personal computer to which a screen, a printer and a keyboard can be connected peripherally.
- the personal computer 19 controls electronic circuits 23 and 24 via a D / A, A / D or I / O controller 22 for realizing the advance of the measuring head 21 with in this case two different units one Measuring head drive.
- the electronic circuit 23 controls the unit 17 of the measuring head drive, which is responsible for the rough feed control
- the circuit 24 controls the unit 18, which is used for the fine control of the feed.
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Biochemistry (AREA)
- General Health & Medical Sciences (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Investigating Strength Of Materials By Application Of Mechanical Stress (AREA)
Abstract
Description
Claims
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP96914069A EP0824673A2 (de) | 1995-05-05 | 1996-05-03 | Vorrichtung zur ermittlung von auf einen messkopf wirkenden kräften und deren verwendung |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE1995116643 DE19516643C1 (de) | 1995-05-05 | 1995-05-05 | Vorrichtung zur Ermittlung von auf einen Meßkopf wirkende Kräfte und deren Verwendung |
DE19516643.4 | 1995-05-05 |
Publications (2)
Publication Number | Publication Date |
---|---|
WO1996035105A2 true WO1996035105A2 (de) | 1996-11-07 |
WO1996035105A3 WO1996035105A3 (de) | 1996-12-12 |
Family
ID=7761238
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/DE1996/000819 WO1996035105A2 (de) | 1995-05-05 | 1996-05-03 | Vorrichtung zur ermittlung von auf einen messkopf wirkenden kräften und deren verwendung |
Country Status (3)
Country | Link |
---|---|
EP (1) | EP0824673A2 (de) |
DE (1) | DE19516643C1 (de) |
WO (1) | WO1996035105A2 (de) |
Families Citing this family (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE19643571C2 (de) * | 1996-10-11 | 1999-10-14 | Ver Energiewerke Ag | Verfahren zur Bestimmung der Härte eines metallischen Werkstoffes oder einer Schweißnaht an einem vor Ort befindlichen druck- und/oder temperaturbeaufschlagten Bauteil |
DE19706744C2 (de) | 1997-02-20 | 2000-08-31 | Dunlop Gmbh | Vorrichtung zur Messung viskoelastischer Eigenschaften von Körpern |
DE19831744A1 (de) | 1998-07-15 | 2000-01-20 | Zeiss Carl Fa | Stellvorrichtung |
DE19927644A1 (de) * | 1999-06-17 | 2001-01-11 | Bayerische Motoren Werke Ag | Verfahren zur Ermittlung der Haptik von weichen Materialien und Vorrichtung zur Durchführung des Verfahrens |
DE10024970C1 (de) | 2000-05-22 | 2002-01-17 | Norbert Kraemer Pneumatik | Verfahren und Vorrichtung zum Ausrichten und Verschieben eines Prüflings, wie Tabletten, Pillen, Dragees oder Tablets |
EP2028473B1 (de) * | 2007-08-20 | 2012-05-02 | BEA Electrics Energietechnik GmbH | Verfahren zur Untersuchung und Beurteilung der Standfestigkeit von Holzmasten |
CN103090783B (zh) * | 2013-01-16 | 2016-02-03 | 河南科技大学 | 一种用于植物茎秆的直径测量装置 |
DE102016207707B4 (de) * | 2016-05-04 | 2024-05-29 | Bayerische Motoren Werke Aktiengesellschaft | Verfahren zum Bestimmen der Komponentenanteile eines Klebstoffes mit zumindest zwei Komponenten |
Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4123147A (en) * | 1976-03-19 | 1978-10-31 | U.S. Philips Corporation | Electrically controlled adjusting device for a light beam with digital and analog deflection control |
US4136554A (en) * | 1977-10-31 | 1979-01-30 | Wells Electronics, Inc. | Tester for inflated items |
EP0487300A1 (de) * | 1990-11-20 | 1992-05-27 | Kabushiki Kaisha Toshiba | Rastertunnelmikroskop |
US5222778A (en) * | 1990-11-28 | 1993-06-29 | Hofmann Maschinenbau Gmbh | Workpiece gripping apparatus |
US5301558A (en) * | 1992-10-02 | 1994-04-12 | Caterpillar Inc. | Testing apparatus for a multilayer piezoelectric actuator |
Family Cites Families (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS6336132A (ja) * | 1986-07-30 | 1988-02-16 | Nec Corp | 薄膜のヤング率及び内部応力測定装置 |
ATE44318T1 (de) * | 1986-09-18 | 1989-07-15 | Kistler Instrumente Ag | Kraftmessvorrichtung mit einem elektromechanischen wandler. |
JP2548012B2 (ja) * | 1987-07-29 | 1996-10-30 | 京セラ株式会社 | タツチセンサ |
JPH0643954B2 (ja) * | 1988-02-01 | 1994-06-08 | 工業技術院長 | 膜の密着強度評価方法および装置 |
DE8808120U1 (de) * | 1988-06-23 | 1988-10-27 | Glamann, Edith-Ingrid, 6231 Sulzbach, De |
-
1995
- 1995-05-05 DE DE1995116643 patent/DE19516643C1/de not_active Expired - Fee Related
-
1996
- 1996-05-03 EP EP96914069A patent/EP0824673A2/de not_active Ceased
- 1996-05-03 WO PCT/DE1996/000819 patent/WO1996035105A2/de not_active Application Discontinuation
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4123147A (en) * | 1976-03-19 | 1978-10-31 | U.S. Philips Corporation | Electrically controlled adjusting device for a light beam with digital and analog deflection control |
US4136554A (en) * | 1977-10-31 | 1979-01-30 | Wells Electronics, Inc. | Tester for inflated items |
EP0487300A1 (de) * | 1990-11-20 | 1992-05-27 | Kabushiki Kaisha Toshiba | Rastertunnelmikroskop |
US5222778A (en) * | 1990-11-28 | 1993-06-29 | Hofmann Maschinenbau Gmbh | Workpiece gripping apparatus |
US5301558A (en) * | 1992-10-02 | 1994-04-12 | Caterpillar Inc. | Testing apparatus for a multilayer piezoelectric actuator |
Non-Patent Citations (3)
Title |
---|
PATENT ABSTRACTS OF JAPAN vol. 012, no. 243 (P-728), 9.Juli 1988 & JP,A,63 036132 (NEC CORP), 16.Februar 1988, * |
PATENT ABSTRACTS OF JAPAN vol. 013, no. 215 (P-874), 19.Mai 1989 & JP,A,01 032108 (KYOCERA CORP), 2.Februar 1989, * |
PATENT ABSTRACTS OF JAPAN vol. 013, no. 492 (P-955), 8.November 1989 & JP,A,01 196537 (AGENCY OF IND SCIENCE & TECHNOL), 8.August 1989, * |
Also Published As
Publication number | Publication date |
---|---|
EP0824673A2 (de) | 1998-02-25 |
WO1996035105A3 (de) | 1996-12-12 |
DE19516643C1 (de) | 1996-08-14 |
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