DE102008037926B3 - Device for tactile measurement of three-dimensional forces, has touch element, tracer pin and parallel spring-elements with strain sensors, where parallel spring-element is arranged transverse to tracer pin - Google Patents
Device for tactile measurement of three-dimensional forces, has touch element, tracer pin and parallel spring-elements with strain sensors, where parallel spring-element is arranged transverse to tracer pin Download PDFInfo
- Publication number
- DE102008037926B3 DE102008037926B3 DE200810037926 DE102008037926A DE102008037926B3 DE 102008037926 B3 DE102008037926 B3 DE 102008037926B3 DE 200810037926 DE200810037926 DE 200810037926 DE 102008037926 A DE102008037926 A DE 102008037926A DE 102008037926 B3 DE102008037926 B3 DE 102008037926B3
- Authority
- DE
- Germany
- Prior art keywords
- stylus
- silicon
- parallel spring
- spring elements
- elements
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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
- G01B7/004—Measuring arrangements characterised by the use of electric or magnetic techniques for measuring coordinates of points
- G01B7/008—Measuring arrangements characterised by the use of electric or magnetic techniques for measuring coordinates of points using coordinate measuring machines
- G01B7/012—Contact-making feeler heads therefor
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
- G01L5/00—Apparatus for, or methods of, measuring force, work, mechanical power, or torque, specially adapted for specific purposes
- G01L5/16—Apparatus for, or methods of, measuring force, work, mechanical power, or torque, specially adapted for specific purposes for measuring several components of force
- G01L5/161—Apparatus for, or methods of, measuring force, work, mechanical power, or torque, specially adapted for specific purposes for measuring several components of force using variations in ohmic resistance
- G01L5/162—Apparatus for, or methods of, measuring force, work, mechanical power, or torque, specially adapted for specific purposes for measuring several components of force using variations in ohmic resistance of piezoresistors
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Measurement Of Length, Angles, Or The Like Using Electric Or Magnetic Means (AREA)
- Length Measuring Devices With Unspecified Measuring Means (AREA)
Abstract
Description
Die Erfindung betrifft eine Vorrichtung zur taktilen Messung von dreidimensionalen Kräften gemäß dem Oberbegriff des Anspruchs 1.The The invention relates to a device for the tactile measurement of three-dimensional forces according to the generic term of claim 1.
Im Stand der Technik sind Koordinatenmessgeräte bekannt, welche verschiedene Vorrichtungen zur taktilen Messung von dreidimensionalen Kräften umfassen, mittels welcher beispielsweise Objektformen von Messobjekten wie maschinell hergestellte Werkstücke sehr genau vermessbar sind.in the Prior art coordinate measuring machines are known, which are different Comprise devices for the tactile measurement of three-dimensional forces, by means of which, for example, object shapes of measurement objects such as machine-made workpieces are very accurate vermessbar.
Aus der Druckschrift ”G. N. Peggs, A. J. Lewis, S. Oldfield: Design for a compact high-accuracy CMM; in: Annals of the CIRP, Vol. 48/1/1999, Seite 417–420” ist ein Mikrotaster bekannt, bei welchem mittels eines Tastelementes und eines Taststiftes Kräfte auf flexible Federelemente übertragbar sind, wobei diese Federelemente aus Berylliumkupfer gebildet sind. Eine Messung der Auslenkungen der Federelemente erfolgt mittels kapazitiven Sensoren.Out the document "G. N. Peggs, A.J. Lewis, S. Oldfield: Design for a compact high-accuracy CMM; in: Annals of the CIRP, Vol. 48/1/1999, page 417-420 "is a Microtaster known, in which by means of a probe element and of a stylus forces transferable to flexible spring elements are, these spring elements are formed of beryllium copper. A measurement of the deflections of the spring elements by means of capacitive sensors.
Die Druckschrift ”S. Bütefisch et al: Mikrotaster für Anwendungen in der taktilen Wegmesstechnik, in: TM – Technisches Messen 5/2003, Seite 238–243” beschreibt einen piezoresistiven Mikrotaster, bei welchem piezoresistive Widerstände auf einer Siliziummembran zu Brücken zusammengeschaltet sind. Die Membran ist dabei mit einem Taststift zur Antastung der Messobjekte verbunden.The Publication "S. Bütefisch et al: Microprobe for Applications in tactile displacement measurement, in: TM - Technical Fairs 5/2003, page 238-243 "describes a piezoresistive micro-probe, in which piezoresistive resistances a silicon membrane to bridges are interconnected. The membrane is with a stylus connected to the probing of the measurement objects.
Weiterhin
offenbart die
Aus
In
Nachteilig bei denen aus dem Stand der Technik bekannten Vorrichtungen ist jedoch, dass diese derart ausgebildet sind, dass die Möglichkeit besteht, dass der Taststift sich bei einer Antastung des Messobjektes verbiegt. Da der Taststift die Messkräfte auf Federelemente bzw. verschiedenartige Sensoren überträgt, stellt dessen Durchbiegung eine erhebliche Fehlerquelle dar.adversely which is known from the prior art devices however, that they are designed so that there is the possibility that the stylus bends in a probing of the measurement object. Since the stylus the measuring forces transmits to spring elements or various sensors, provides its deflection is a significant source of error.
Der Erfindung liegt daher die Aufgabe zugrunde, eine Vorrichtung zur taktilen Messung von dreidimensionalen Kräften anzugeben, welche die im Stand der Technik angegebenen Nachteile überwinden soll, das heißt eine Antastung der Messobjekte mit hoher Präzision und sehr guter Reproduzierbarkeit ermöglicht.Of the Invention is therefore based on the object, a device for indicate tactile measurement of three - dimensional forces, which the overcome disadvantages indicated in the prior art, that is one Touching the measurement objects with high precision and very good reproducibility allows.
Die Aufgabe wird erfindungsgemäß durch eine Vorrichtung gelöst, welche die im Anspruch 1 angegebenen Merkmale aufweist.The The object is achieved by a Device solved, which has the features specified in claim 1.
Vorteilhafte Ausgestaltungen der Erfindung sind Gegenstand der Unteransprüche.advantageous Embodiments of the invention are the subject of the dependent claims.
Die erfindungsgemäße Vorrichtung zur taktilen Messung von dreidimensionalen Kräften umfasst ein Tastelement, einen Taststift und Parallelfederelemente mit Dehnungssensoren. Zwischen dem Tastelement und dem Taststift sind zumindest zwei um 90 Grad zueinander versetzte Parallelfederelemente in Reihe und längs zum Taststift angeordnet sind, wobei die Parallelfederelemente aus jeweils zwei parallel angeordneten Silizium-Blattfedern und zwischen diesen angeordneten Abstandselementen bestehen und die Dehnungssensoren piezoresistive Widerstände sind, welche in die Silizium-Blattfederelemente integriert sind.The inventive device for the tactile measurement of three-dimensional forces comprises a probe element, a stylus and parallel spring elements with strain sensors. Between the probe element and the stylus are at least two order 90 degrees offset from each other parallel spring elements in series and along the Taststift are arranged, wherein the parallel spring elements of each two parallel silicon leaf springs and between them arranged spacing elements exist and the strain sensors piezoresistive resistors are, which are integrated in the silicon leaf spring elements.
Diese Federelemente und die in diesen integrierten Dehnungssensoren dienen zur Messung von Antastkräften in Querrichtung zum Taststift. Aufgrund der Anordnung der um 90 Grad zueinander versetzten und in Reihe angeordneten Federelemente mit den in diesen integrierten Dehnungssensoren unmittelbar nach dem Tastelement stellt eine Durchbiegung des Taststiftes keine Fehlerquelle bei der Vermessung der Messobjekte dar. Somit sind sehr genaue Messergebnisse erzielbar.These Spring elements and serve in these integrated strain sensors for the measurement of probing forces in the transverse direction to the stylus. Due to the arrangement of around 90 Degree staggered and arranged in series spring elements with the in these integrated strain sensors immediately after the probe element is a deflection of the stylus no source of error during the measurement of the measurement objects. Thus, very accurate measurement results achievable.
Da die Herstellung der erfindungsgemäßen Vorrichtung mit Technologien der Mikro- und Nanotechnik erfolgt, sind kleinste Abmessungen des Taststiftes und der Federelemente erzielbar. Daraus resultiert der Vorteil, dass auch Messobjekte mit kleinsten Abmessungen und sogar in diesen angeordnete Bohrungen gemessen werden können.There the production of the device according to the invention with technologies the micro and nanotechnology takes place, are smallest dimensions of the Taststiftes and the spring elements achievable. This results in the Advantage that also measuring objects with the smallest dimensions and even can be measured in these arranged holes.
Am dem Tastelement abgewandten Ende des Taststiftes ist ein weiteres Federelement quer zu dem Taststift angeordnet, welches die Messung von Kräften in z-Richtung, also in Längsrichtung zum Taststift ermöglicht.At the the probe element facing away from the end of the stylus is another Spring element arranged transversely to the stylus, which is the measurement of forces in z-direction, so longitudinal allows the stylus.
Vorzugsweise sind die Parallelfederelemente aus zumindest zwei parallel angeordneten Silizium-Blattfederelementen und zwischen diesen angeordneten Silizium-Abstandselementen gebildet.Preferably the parallel spring elements are arranged from at least two parallel Silicon leaf spring elements and arranged between these silicon spacers educated.
Vorteile einer derartigen Federführung sind insbesondere eine Spiel-, Verschleiß- und Wartungsfreiheit. Weiterhin ist die Anordnung der Federelemente mangels gleitender Gelenke bis auf die innere Reibung der Blattfederelemente nahezu reibungsfrei, was wiederum zu sehr genauen Messergebnissen führt.advantages such a spring guide are in particular a play, wear and maintenance freedom. Furthermore is the arrangement of the spring elements for lack of sliding joints up on the internal friction of the leaf spring elements almost frictionless, which again leads to very accurate measurement results.
Ein wesentlicher Vorteil der Vorrichtung besteht darin, dass die Durchbiegung des Taststiftes die Messung der Kräfte in x- und y-Richtung und somit auch die Position des Antastelementes in x- und y-Richtung nicht beeinflusst, da die Parallelfedern zur Messung der x- und y-Größen unmittelbar nach dem Tastelement angeordnet sind.One The main advantage of the device is that the deflection of the stylus, the measurement of forces in the x and y direction and thus also the position of the probing element in the x and y direction not affected, since the parallel springs for measuring the x and y sizes immediately are arranged after the probe element.
Die Messung von Kräften in z-Richtung wird dadurch ermöglicht, dass am dem Tastelement abgewandten Ende des Taststiftes ein Federelement quer zum Taststift angeordnet ist. Da hierbei der Taststift in Längsrichtung beansprucht wird, werden Fehler infolge von Deformationen des Taststiftes auch hier weitestgehend verhindert.The Measurement of forces in the z-direction is thereby enabled that on the probe element facing away from the end of the stylus a spring element is arranged transversely to the stylus. Here, the stylus in the longitudinal direction claimed are errors due to deformations of the stylus also largely prevented here.
Eine vorteilhafte Ausführung sieht vor, dass Abstandselemente und/oder der Taststift ebenfalls aus Silizium bestehen.A advantageous embodiment provides that spacers and / or stylus also off Consist of silicon.
Bei einer vorteilhaften Ausgestaltung sind die Parallelfedern ein aus den Silizium-Blattfederelementen und den Silizium-Abstandselementen gebildetes Formteil.at According to an advantageous embodiment, the parallel springs are on the silicon leaf spring elements and the silicon spacers formed molding.
Eine hohe Messgenauigkeit und die weitere Eliminierung von Fehlereinflüssen gelingen dadurch, dass die piezoresistiven Widerstände zu einer Wheatstoneschen Messbrücke verschaltet sind.A high measurement accuracy and the further elimination of error influences succeed in that the piezoresistive resistors become a Wheatstone measuring bridge are interconnected.
Ausführungsbeispiele der Erfindung werden im Folgenden anhand von Zeichnungen näher erläutert.embodiments The invention will be explained in more detail below with reference to drawings.
Darin zeigen:In this demonstrate:
und
and
Einander entsprechende Teile sind in allen Figuren mit den gleichen Bezugszeichen versehen.each other corresponding parts are in all figures with the same reference numerals Mistake.
Die
in
Die
Parallelfederelemente
Zwischen
den Silizium-Blattfederelementen
Zwischen
dem Tastelement
Weiterhin
ist ein Abstandselement
Zusätzlich ist
ein mittleres Abstandselement
Mit
den in Reihe angeordneten Federelementen
Quer
zum Taststift
In
Weiterhin
wirkt die um 90 Grad zur Kraft Fx versetzte
Kraft Fy senkrecht auf das Federelement
Hieraus resultiert ein wesentlicher Vorteil der Erfindung, welcher darin besteht, dass die Durchbiegung des Taststiftes die Messung der Kräfte Fx und Fy und die Position des Abstandselements in x- und y-Richtung nicht beeinflusst.This results in a significant advantage of the invention, which is that the deflection of the stylus does not affect the measurement of the forces F x and F y and the position of the spacer in the x and y directions.
In
Das
Koordinatenmessgerät
- 11
- Vorrichtungcontraption
- 22
- Tastelementscanning element
- 33
- Taststiftfeeler
- 44
- ParallelfederelementParallel spring element
- 4.14.1
- Silizium-BlattfederelementSilicon-leaf spring member
- 4.24.2
- Silizium-BlattfederelementSilicon-leaf spring member
- 55
- ParallelfederelementParallel spring element
- 5.15.1
- Silizium-BlattfederelementSilicon-leaf spring member
- 5.25.2
- Silizium-BlattfederelementSilicon-leaf spring member
- 66
- ParallelfederelementParallel spring element
- 6.16.1
- Silizium-BlattfederelementSilicon-leaf spring member
- 6.26.2
- Silizium-BlattfederelementSilicon-leaf spring member
- 77
- Dehnungssensorstrain sensor
- 8.1...8.68.1 ... 8.6
- Abstandselementspacer
- 99
- Koordinatenmessgerätcoordinate measuring machine
- 1010
- Messobjektmeasurement object
- 1111
- Befestigungselementfastener
- 1212
- PinolePinole
- 1313
- Gestellframe
- Fx F x
- Kraft in x-Richtungforce in X direction
- Fy F y
- Kraft in y-Richtungforce in the y direction
- Fz F z
- Kraft in z-Richtungforce in the z direction
Claims (7)
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE200810037926 DE102008037926B3 (en) | 2008-08-14 | 2008-08-14 | Device for tactile measurement of three-dimensional forces, has touch element, tracer pin and parallel spring-elements with strain sensors, where parallel spring-element is arranged transverse to tracer pin |
NL1037143A NL1037143C (en) | 2008-08-14 | 2009-07-21 | DEVICE FOR THE TACTICAL MEASUREMENT OF THREE-DIMENSIONAL FORCES. |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE200810037926 DE102008037926B3 (en) | 2008-08-14 | 2008-08-14 | Device for tactile measurement of three-dimensional forces, has touch element, tracer pin and parallel spring-elements with strain sensors, where parallel spring-element is arranged transverse to tracer pin |
Publications (1)
Publication Number | Publication Date |
---|---|
DE102008037926B3 true DE102008037926B3 (en) | 2010-02-04 |
Family
ID=41349250
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE200810037926 Expired - Fee Related DE102008037926B3 (en) | 2008-08-14 | 2008-08-14 | Device for tactile measurement of three-dimensional forces, has touch element, tracer pin and parallel spring-elements with strain sensors, where parallel spring-element is arranged transverse to tracer pin |
Country Status (2)
Country | Link |
---|---|
DE (1) | DE102008037926B3 (en) |
NL (1) | NL1037143C (en) |
Cited By (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102011106894B3 (en) * | 2011-07-07 | 2012-07-19 | Technische Universität Ilmenau | Apparatus for simultaneous measurement of force and moment components, has deformable element that is provided with rod-shaped movable elements with bending joints and edges in cuboid form |
DE102011006922A1 (en) * | 2011-04-07 | 2012-10-11 | SIOS Meßtechnik GmbH | Silicon transducer for use in sensor utilized to measure e.g. pressure, has contacts arranged at end of slab to measure bridge output voltage, and silicon mounting surfaces arranged at ends of transducer in electrically neutral region |
NL1039519A (en) * | 2011-04-14 | 2012-10-16 | Sios Messtechnik Gmbh | SENSOR FOR THE TACTICAL MEASUREMENT OF FORCES AND MOMENTS. |
DE102012219203B3 (en) * | 2012-10-22 | 2013-11-14 | SIOS Meßtechnik GmbH | Device for force- or displacement measurement, has two meander arrangements connected to each other by coupling piece to form parallel spring arrangement, where each meander arrangement has neutral silicon springs and active silicon springs |
FR2994262A1 (en) * | 2012-08-02 | 2014-02-07 | Turbomeca | Method for manufacturing part of turbine blade of turbomachine for driving aircraft, involves engraving series of reference marks on surface of blade according to predetermined configuration, and recording configuration of marks |
DE102014219280B3 (en) * | 2014-09-24 | 2015-11-26 | SIOS Meßtechnik GmbH | Device for positioning and measuring of measuring objects |
DE102017206145B3 (en) * | 2017-04-10 | 2017-12-28 | Technische Universität Braunschweig | Microtaster and method of manufacture |
CN108972601A (en) * | 2018-08-10 | 2018-12-11 | 佛山科学技术学院 | A kind of end effector perceiving three-dimensional force |
Citations (4)
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---|---|---|---|---|
US4050049A (en) * | 1976-02-09 | 1977-09-20 | Signetics Corporation | Solid state force transducer, support and method of making same |
DE19641720A1 (en) * | 1996-10-10 | 1998-04-30 | Mahr Gmbh | Touch sensor with electronic guide for measuring products e.g. workpieces |
US20020014893A1 (en) * | 2000-07-19 | 2002-02-07 | Mitutoyo Corporation | Scale member, method of producing the same and displacement measuring apparatus therewith |
WO2006010395A2 (en) * | 2004-07-23 | 2006-02-02 | Carl Zeiss Industrielle Messtechnik Gmbh | Sensor module for the scanning head of a tactile co-ordinate measuring device |
Family Cites Families (3)
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JPS5888612A (en) * | 1982-02-17 | 1983-05-26 | Toyoda Mach Works Ltd | Tracer head |
DE4309082A1 (en) * | 1993-03-20 | 1994-09-22 | Pietzsch Automatisierungstech | Measuring device for measuring the shape of cylinders |
GB0228368D0 (en) * | 2002-12-05 | 2003-01-08 | Renishaw Plc | Probe for high speed scanning |
-
2008
- 2008-08-14 DE DE200810037926 patent/DE102008037926B3/en not_active Expired - Fee Related
-
2009
- 2009-07-21 NL NL1037143A patent/NL1037143C/en not_active IP Right Cessation
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4050049A (en) * | 1976-02-09 | 1977-09-20 | Signetics Corporation | Solid state force transducer, support and method of making same |
DE19641720A1 (en) * | 1996-10-10 | 1998-04-30 | Mahr Gmbh | Touch sensor with electronic guide for measuring products e.g. workpieces |
US20020014893A1 (en) * | 2000-07-19 | 2002-02-07 | Mitutoyo Corporation | Scale member, method of producing the same and displacement measuring apparatus therewith |
WO2006010395A2 (en) * | 2004-07-23 | 2006-02-02 | Carl Zeiss Industrielle Messtechnik Gmbh | Sensor module for the scanning head of a tactile co-ordinate measuring device |
Non-Patent Citations (3)
Title |
---|
G.N.Peggs, A.J.Lewis, S.Oldfield Design for a compact high-accuracy CMM, in: Annals of the CIRP, Vol. 48/1/1999 S. 417-420 * |
G.N.Peggs, A.J.Lewis, S.Oldfield Design for a compact high-accuracy CMM, in: Annals of the CIRP, Vol. 48/1/1999 S. 417-420 S.Bütefisch et al Mikrotaster für Anwendungen in der taktilen Wegmesstechnik in: TM-Technisches Messen 5/2003, S. 238-243 |
S.Bütefisch et al Mikrotaster für Anwendungen in der taktilen Wegmesstechnik in: TM-Technisches Messen 5/2003, S. 238-243 * |
Cited By (12)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102011006922A1 (en) * | 2011-04-07 | 2012-10-11 | SIOS Meßtechnik GmbH | Silicon transducer for use in sensor utilized to measure e.g. pressure, has contacts arranged at end of slab to measure bridge output voltage, and silicon mounting surfaces arranged at ends of transducer in electrically neutral region |
DE102011006922B4 (en) * | 2011-04-07 | 2013-07-11 | SIOS Meßtechnik GmbH | Instrument transformers for sensor technology |
NL1039519A (en) * | 2011-04-14 | 2012-10-16 | Sios Messtechnik Gmbh | SENSOR FOR THE TACTICAL MEASUREMENT OF FORCES AND MOMENTS. |
DE102011007350A1 (en) | 2011-04-14 | 2012-10-18 | SIOS Meßtechnik GmbH | Force-moment sensor for performing tactile measurement of force, moment and deformation, has support element spaced apart from set of supplementary parallel spring assemblies, and another support element that supports sensor at frame |
DE102011007350B4 (en) * | 2011-04-14 | 2013-04-11 | SIOS Meßtechnik GmbH | Sensor for the tactile measurement of forces and moments |
DE102011106894B3 (en) * | 2011-07-07 | 2012-07-19 | Technische Universität Ilmenau | Apparatus for simultaneous measurement of force and moment components, has deformable element that is provided with rod-shaped movable elements with bending joints and edges in cuboid form |
FR2994262A1 (en) * | 2012-08-02 | 2014-02-07 | Turbomeca | Method for manufacturing part of turbine blade of turbomachine for driving aircraft, involves engraving series of reference marks on surface of blade according to predetermined configuration, and recording configuration of marks |
DE102012219203B3 (en) * | 2012-10-22 | 2013-11-14 | SIOS Meßtechnik GmbH | Device for force- or displacement measurement, has two meander arrangements connected to each other by coupling piece to form parallel spring arrangement, where each meander arrangement has neutral silicon springs and active silicon springs |
DE102014219280B3 (en) * | 2014-09-24 | 2015-11-26 | SIOS Meßtechnik GmbH | Device for positioning and measuring of measuring objects |
DE102017206145B3 (en) * | 2017-04-10 | 2017-12-28 | Technische Universität Braunschweig | Microtaster and method of manufacture |
CN108972601A (en) * | 2018-08-10 | 2018-12-11 | 佛山科学技术学院 | A kind of end effector perceiving three-dimensional force |
CN108972601B (en) * | 2018-08-10 | 2024-03-26 | 佛山科学技术学院 | End effector capable of sensing three-dimensional force |
Also Published As
Publication number | Publication date |
---|---|
NL1037143A1 (en) | 2010-02-16 |
NL1037143C (en) | 2010-03-09 |
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