WO2007090309A1 - Winkelmessgerat - Google Patents
Winkelmessgerat Download PDFInfo
- Publication number
- WO2007090309A1 WO2007090309A1 PCT/CH2007/000049 CH2007000049W WO2007090309A1 WO 2007090309 A1 WO2007090309 A1 WO 2007090309A1 CH 2007000049 W CH2007000049 W CH 2007000049W WO 2007090309 A1 WO2007090309 A1 WO 2007090309A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- sensor
- axis
- measuring device
- angle measuring
- sensors
- 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.)
- Ceased
Links
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01C—MEASURING DISTANCES, LEVELS OR BEARINGS; SURVEYING; NAVIGATION; GYROSCOPIC INSTRUMENTS; PHOTOGRAMMETRY OR VIDEOGRAMMETRY
- G01C1/00—Measuring angles
- G01C1/02—Theodolites
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B23/00—Telescopes, e.g. binoculars; Periscopes; Instruments for viewing the inside of hollow bodies; Viewfinders; Optical aiming or sighting devices
- G02B23/16—Housings; Caps; Mountings; Supports, e.g. with counterweight
Definitions
- the invention relates to the field of optical angle measuring devices, in particular to an angle measuring device according to the preamble of claim 1.
- Winkle devices are used, for example, as pure theodolites for measuring angles, or are combined with, for example, electro-optical distance measuring devices, part of a coordinate measuring system.
- the tilt axis has a V-bearing, i. a friction bearing with two defined support points.
- the V-bearing has the disadvantage that it can only be loaded in one direction, which prevents a non-vertical installation and makes a motor drive difficult because of the changing driving force.
- the angle measuring device for optical Winkeuchtungung thus has a at least one axis rotatably mounted telescope body with Wirikelencoder.
- the telescope body may be equipped with a scope, an electronic camera, laser optical range finders, etc. of a generally known type.
- the axis is rotatably mounted on at least two bearings, and are , these
- Axle of each other are gebäbstandet. At least one of the sensor arrangements has a group of capacitive sensors, which at the measuring point a
- a point on the axis can thereby move due to bearing inaccuracies in a plane perpendicular to the axial direction.
- This movement is detected by the sensor arrangements in each case at a measuring point. Since there are two measuring points, the position or displacement of two points of the axis and thus also the position of the displaced axis as a whole is known. This position is taken into account in the calculation of the line of sight of the telescope body or the Neten telescopes and / or distance meter considered (in addition to the usually determined angle of rotation about one or two axes by means of angle encoder).
- the viewing direction of the telescope body is determined on the one hand from the rotations about the axes, and on the other hand, a correction according to the invention determined according to the position of the axis is performed. Further corrections of the device geometry due to, for example, temperature measurements can be carried out in a known manner.
- each of the sensor arrangements has a first sensor pair and a second sensor pair, each with two capacitive sensors, wherein the first sensor pair measures a displacement of the axis in a first direction orthogonal to the axial direction, the second sensor pair a
- Movement of the axis in a second direction orthogonal to the axial direction measures, and the first and the second direction are substantially orthogonal to each other. Due to the orthogonal orientation of the sensor pairs to each other are the
- sensors it is also possible to use more or less sensors: For example, only a single sensor or a single sensor pair can be used to measure the displacement of the axis in only one direction. Or, three sensors are arranged in a triangular arrangement about the axis, and the displacement of the axis is determined in the two directions from the totality of the three sensor capacities. Also, five or six sensors can be used. However, the variant presented in detail with two orthogonal sensor pairs is particularly simple in terms of the evaluation.
- a first sensor of the first sensor pair and a first sensor of the second sensor pair are arranged on a first sensor element carrier in at least one of the sensor arrangements, and is in each case a second sensor of the first sensor pair and a second sensor of the second sensor pair arranged on a second sensor element carrier.
- the sensors each form a capacitance between the axis and an electrode in accordance with the distance between the axis and the electrode.
- the axis is electrically connected to ground.
- the inventive measuring device can with several axes of a Winkeknesstechniks. in particular both in the case of a tilting axis (or zenith axis) and / or in the case of a standing axis (or azimuth axis).
- the angle measuring device has an electronic circuit which is suitable for at least one of the sensor pairs for
- the difference signal is a measure of the displacement of the axis in the direction between the first and the second sensor.
- Figure 1 is a side view of an angle measuring device with Achslagesensoren
- FIG. 2 is a detail view of Achslagesensoren
- FIG. 3 shows an electronic circuit for expanding the capacitance values of the axis position sensors.
- Figure 1 shows a side view of an angle measuring device with Achslagesensoren.
- a telescope body 5 is rotatably supported about a tilt axis 1 in a support 4.
- the support 4 is rotatably mounted about a standing axis 2 in a base 3.
- the storage has ball bearings 6 each.
- the two axes 1, 2 are each equipped with capacitive sensors 7, which are arranged in pairs or individually, spaced apart in the axial direction.
- the sensors 7 are each arranged at the bearings 6 of the axes 1, 2.
- the changes in the capacitance of the sensors 7, the lateral deviations of the axis are measured and converted into an angular correction of the axial position.
- FIG. 2 shows a detailed view of axle position sensors.
- the left side of the figure shows a plan view in the axial direction, and the right side of a cross section, wherein the axial direction is in the plane of the paper.
- a base support 12 (shown only in cross-section), which is part of the support 4 or the base 3, two sensor element supports 14, 14 'with fastening means such as screws 13 are attached. This attachment is adjustable so that the distances between the sensors 7 and the axis 11 can be adjusted. In this case, the air gap between the axis 11 and an electrode 16 of a sensor 7 forms a capacitance.
- the distance from the electrode 16 to the axis 11 is set in each case via a displacement of the carrier 14 to, for example, about 15 micrometers.
- the basic capacity is about 3-4 pF with an electrode width of 3mm and a length of 10mm.
- the axis 11 may be the tilting axis 1 or the standing axis 2.
- Each of the sensors 7a, 7b, 7c, 7d has an electrode 16 which is isolated via an insulator 15 on
- Sensor element carrier 14 is attached and is electrically connected via an electrode connecting line 17 to a transmitter.
- the insulator 15 is off
- the axis 11 is electrically connected to a ground terminal of the transmitter.
- this type of angle measurement can also provide information about the displacement of the axis, and thus also serves as a sensor arrangement for this purpose. In this case, only one additional, axially spaced capacitive sensor arrangement of the above type is required to completely determine the position of the axis.
- FIG. 3 shows an electronic circuit for evaluating the capacitance values of the axis position sensors.
- the electronic circuit has one for each the sensors 7a, 7b, 7c, 7d to form a first respectively a second signal to a voltage divider, consisting of a resistor Rl and the variable capacitance Cs of the sensor.
- the resistor Rl is arranged between a voltage source with a voltage Uo and a tap of the voltage divider with a voltage Us.
- the capacitance of the sensor 7a, 7b, 7c, 7d is between the tap of the voltage divider and the axis 1, 2; 11 arranged.
- a diode D is arranged in series between the tap of the voltage divider and an amplifier input, and a smoothing capacitor C between the amplifier input and ground.
- the two diodes D are paired by two sensors of a pair of sensors, that is, arranged in the same diode housing.
- the two smoothed signals of a sensor pair are fed to the two inputs of a differential amplifier X, Y.
- the output signal of the differential amplifier X, Y is a measure of the deviation of the axis in X and Y direction from the center of the sensor.
- the outputs of the two differential amplifiers X, Y are digitized by an A / D converter and digitally processed by a system controller.
- the interface between analog and digital signal processing can also be realized at a different location of the circuit arrangement, with the same overall function.
- the circuit for determining an axis shift can also be implemented purely analogously.
- the voltage source has an oscillator Ose and a driver Drv.
- a sinusoidal signal of frequency f, for example, about 1.5 MHz, of the oscillator Ose is amplified by the driver Drv to a voltage Uo of, for example, about 2Vpp.
- the resistors Rl form a voltage divider with the capacitance Cs of the sensor electrode. At the diode D, the resulting voltage Us at the tap of the voltage divider 1
- the electronic circuit has a compensation circuit for eliminating temperature influences, in particular a voltage divider R1-R2 and a circuit for rectification and smoothing, which is constructed analogously to the circuits of the respective individual sensors 7a, 7b, 7c, 7d.
- a reference voltage which is also digitized via the A / D converter.
- the influence of a varying signal amplitude Uo is thus switched off by relating the measuring signals of the sensor pairs to the reference voltage.
Landscapes
- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- General Physics & Mathematics (AREA)
- Radar, Positioning & Navigation (AREA)
- Remote Sensing (AREA)
- Measurement Of Length, Angles, Or The Like Using Electric Or Magnetic Means (AREA)
- Transmission And Conversion Of Sensor Element Output (AREA)
Abstract
Description
Claims
Priority Applications (6)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2008553596A JP5235679B2 (ja) | 2006-02-08 | 2007-01-31 | 角度測定器具 |
| CA2641684A CA2641684C (en) | 2006-02-08 | 2007-01-31 | Angle measurement apparatus |
| US12/278,796 US8072228B2 (en) | 2006-02-08 | 2007-01-31 | Angle measuring device |
| EP07701849.7A EP1982142B1 (de) | 2006-02-08 | 2007-01-31 | Winkelmessgerat |
| CN2007800047275A CN101384881B (zh) | 2006-02-08 | 2007-01-31 | 角度测量仪 |
| AU2007214177A AU2007214177B2 (en) | 2006-02-08 | 2007-01-31 | Angle measuring device |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CH196/06 | 2006-02-08 | ||
| CH1962006 | 2006-02-08 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| WO2007090309A1 true WO2007090309A1 (de) | 2007-08-16 |
Family
ID=36440906
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PCT/CH2007/000049 Ceased WO2007090309A1 (de) | 2006-02-08 | 2007-01-31 | Winkelmessgerat |
Country Status (7)
| Country | Link |
|---|---|
| US (1) | US8072228B2 (de) |
| EP (1) | EP1982142B1 (de) |
| JP (1) | JP5235679B2 (de) |
| CN (1) | CN101384881B (de) |
| AU (1) | AU2007214177B2 (de) |
| CA (1) | CA2641684C (de) |
| WO (1) | WO2007090309A1 (de) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102162910A (zh) * | 2011-04-19 | 2011-08-24 | 中国科学院国家天文台南京天文光学技术研究所 | 适用于南极天文望远镜的永磁悬浮支承轴系结构 |
Families Citing this family (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20120274315A1 (en) * | 2011-04-28 | 2012-11-01 | Rhodes Michael L | Rotation Angle Measurement Assembly |
| US9482525B2 (en) | 2012-05-16 | 2016-11-01 | Faro Technologies, Inc. | Apparatus to compensate bearing runout in a three-dimensional coordinate measuring system |
| US9423282B2 (en) | 2014-06-12 | 2016-08-23 | Faro Technologies, Inc. | Metrology device and a method for compensating for bearing runout error |
| US9746304B2 (en) | 2012-05-16 | 2017-08-29 | Faro Technologies, Inc. | Apparatus and method to compensate bearing runout in an articulated arm coordinate measurement machine |
| JP2015524053A (ja) * | 2012-05-16 | 2015-08-20 | ファロ テクノロジーズ インコーポレーテッド | レーザトラッカのベアリング振れを補正する装置および方法 |
| US9488476B2 (en) | 2014-02-06 | 2016-11-08 | Faro Technologies, Inc. | Apparatus and method to compensate bearing runout in an articulated arm coordinate measurement machine |
| DE102013022018B3 (de) * | 2013-12-20 | 2015-05-21 | Trimble Jena Gmbh | Optisches Messsystem |
| EP3086088B1 (de) * | 2015-04-22 | 2019-01-09 | Leica Geosystems AG | Scannendes vermessungsgerät mit thermisch neutraler achse |
| CN106679557B (zh) * | 2017-03-17 | 2018-11-23 | 中国农业大学 | 一种测量磁悬浮球微位移的装置及测量方法 |
| CN115752197A (zh) * | 2022-11-02 | 2023-03-07 | 北京工业大学 | 一种精密测头导向机构6自由度数据解耦方法 |
| CN119321718B (zh) * | 2024-11-21 | 2025-12-16 | 中国科学院上海技术物理研究所 | 基于三点电容位移传感器的快摆镜摆角监测系统和方法 |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4455758A (en) * | 1980-03-12 | 1984-06-26 | Tokyo Kogaku Kikai Kabushiki Kaisha | Bearing means for angle measuring instruments |
| EP0369416A2 (de) * | 1988-11-18 | 1990-05-23 | Leica Aarau AG | Vorrichtung zur Lagerung einer Welle |
Family Cites Families (19)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4119375A (en) * | 1977-09-01 | 1978-10-10 | Ingersoll-Rand Company | Bearing and housing assembly |
| US4309062A (en) * | 1979-09-21 | 1982-01-05 | Emerson Electric Co. | Bearing movement preventing system |
| JPS56126707A (en) * | 1980-03-12 | 1981-10-05 | Tokyo Optical Co Ltd | Measuring device for angle |
| JPS6236085Y2 (de) * | 1980-03-17 | 1987-09-14 | ||
| JPS60168011U (ja) * | 1984-04-13 | 1985-11-07 | 西川 誠幹 | 測量機 |
| US4811491A (en) * | 1987-09-04 | 1989-03-14 | Etak, Inc. | Two-axis differential capacitance inclinometer |
| JPH02201101A (ja) * | 1989-01-30 | 1990-08-09 | Ebara Corp | 磁気軸受用変位センサ |
| CN2114139U (zh) * | 1992-01-17 | 1992-08-26 | 国营华川机械厂 | 一种新型电容式电子水平角度仪 |
| JPH06147813A (ja) * | 1992-11-09 | 1994-05-27 | Daikin Ind Ltd | 回転体の位置検出装置 |
| JPH06160006A (ja) * | 1992-11-17 | 1994-06-07 | Daikin Ind Ltd | 変位検出装置 |
| JPH08278135A (ja) * | 1995-04-03 | 1996-10-22 | Asahi Optical Co Ltd | 測量機の自動求心装置 |
| JPH08276338A (ja) * | 1995-04-06 | 1996-10-22 | Nippon Steel Corp | 回転体の姿勢調整機構 |
| JPH1114355A (ja) * | 1997-06-19 | 1999-01-22 | Nikon Corp | 測量装置及び測量方法 |
| JPH11230749A (ja) * | 1998-02-12 | 1999-08-27 | Nikon Corp | 測量機 |
| JP3965593B2 (ja) * | 1998-07-08 | 2007-08-29 | 株式会社トプコン | 測量機の求心位置測定装置及び測量機 |
| JP4035800B2 (ja) * | 1998-08-17 | 2008-01-23 | 株式会社トプコン | レーザー装置 |
| JP2001012967A (ja) * | 1999-04-28 | 2001-01-19 | Asahi Optical Co Ltd | エンコーダおよび磁気式エンコーダを搭載した測量機 |
| CN2581941Y (zh) * | 2002-11-17 | 2003-10-22 | 迟路祥 | 差动电容式角度传感器 |
| SE0301830D0 (sv) * | 2003-06-23 | 2003-06-23 | Trimble Ab | A surveying instrument |
-
2007
- 2007-01-31 WO PCT/CH2007/000049 patent/WO2007090309A1/de not_active Ceased
- 2007-01-31 EP EP07701849.7A patent/EP1982142B1/de not_active Not-in-force
- 2007-01-31 US US12/278,796 patent/US8072228B2/en active Active
- 2007-01-31 CA CA2641684A patent/CA2641684C/en not_active Expired - Fee Related
- 2007-01-31 AU AU2007214177A patent/AU2007214177B2/en not_active Ceased
- 2007-01-31 CN CN2007800047275A patent/CN101384881B/zh not_active Expired - Fee Related
- 2007-01-31 JP JP2008553596A patent/JP5235679B2/ja active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4455758A (en) * | 1980-03-12 | 1984-06-26 | Tokyo Kogaku Kikai Kabushiki Kaisha | Bearing means for angle measuring instruments |
| EP0369416A2 (de) * | 1988-11-18 | 1990-05-23 | Leica Aarau AG | Vorrichtung zur Lagerung einer Welle |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102162910A (zh) * | 2011-04-19 | 2011-08-24 | 中国科学院国家天文台南京天文光学技术研究所 | 适用于南极天文望远镜的永磁悬浮支承轴系结构 |
Also Published As
| Publication number | Publication date |
|---|---|
| EP1982142A1 (de) | 2008-10-22 |
| CA2641684A1 (en) | 2007-08-16 |
| EP1982142B1 (de) | 2015-10-14 |
| CA2641684C (en) | 2015-05-12 |
| CN101384881A (zh) | 2009-03-11 |
| US8072228B2 (en) | 2011-12-06 |
| CN101384881B (zh) | 2011-07-06 |
| JP2009526209A (ja) | 2009-07-16 |
| US20090102492A1 (en) | 2009-04-23 |
| JP5235679B2 (ja) | 2013-07-10 |
| AU2007214177B2 (en) | 2012-09-27 |
| AU2007214177A1 (en) | 2007-08-16 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| EP1982142B1 (de) | Winkelmessgerat | |
| EP2729768B1 (de) | Kalibrierung und betrieb von drehvorrichtungen, insbesondere zum drehen von tastköpfen und/oder tastern von koordinatenmessgeräten | |
| EP0842393B1 (de) | Verfahren zum gegenseitigen ausrichten von körpern und lagemesssonde hierfür | |
| DE112010002189B4 (de) | Kontaktfreies dreidimensionales Ultrapräzisions-Tastsystem basierend auf einer sphärischen kapazitiven Platte | |
| DE10102171B4 (de) | Verfahren zur Längsrichtungslinearitätskompensierung und Verfahren zur Rotationsgenauigkeitskompensierung eines Messgeräts | |
| WO2013007285A1 (de) | Korrektur und/oder vermeidung von fehlern bei der messung von koordinaten eines werkstücks | |
| DE102015201583B4 (de) | Verfahren zur Ermittlung eines auf eine Drehvorrichtung einwirkenden Moments oder einer auf eine Drehvorrichtung einwirkenden Kraft | |
| EP0997706A1 (de) | Anordnung zur Messung einer relativen linearen Position | |
| EP1944582A1 (de) | Verfahren zur bestimmuing einer einflussgrosse auf die exzentrizitat in einem wineklmesser | |
| DE112015005624T5 (de) | Lastbestimmungssystem für ein Wälzlager | |
| WO2015127937A1 (de) | Wälzlager mit einer integrierten winkelmesseinrichtung | |
| DE102013001136B4 (de) | Geodätisches Gerät und Verfahren zum Bestimmen einer Eigenschaft des Geräts | |
| DE10128619A1 (de) | Magnetischer Inkrementalcodierer und Vermessungsinstrument mit einem magnetischen Inkrementalcodierer | |
| EP1219933A2 (de) | Differential-Wirbelstromgeber | |
| DE3833203C1 (en) | Device for the numeric acquisition of coordinates for CAD systems | |
| DE102015219167A1 (de) | Wälzlageranordnung | |
| EP0682235B1 (de) | Verfahren und Vorrichtung zum Abgleich eines Messkörpers eines Messwertaufnehmers | |
| EP1092947B1 (de) | Verfahren zum Ermitteln der Ausrichtung eines zylindrischen Körpers bezüglich einer Referenzrichtung | |
| EP1221589A2 (de) | Messanordnung in einem Wälzlager zur Detektierung physikalischer Grössen | |
| DE19625058A1 (de) | Vorrichtung zur Ermittlung einer Drehrate | |
| EP0621469B1 (de) | Zugkraftmesseinrichtung | |
| DE102012203158A1 (de) | Vorrichtung und Verfahren zur absoluten Winkelpositionsbestimmung eines drehbaren Körpers mittels zweier normal zur Drehachse angebrachter Sensoren | |
| DE10340851A1 (de) | Rundheitsmessvorrichtung | |
| DE4421301A1 (de) | Verfahren zur Korrektur von Achsenfehlern sowie Koordinatenmeßgerät der Hochpräzisionsklasse | |
| EP3318840B1 (de) | Teilungsmesseinrichtung und verfahren zur überprüfung der positioniergenauigkeit eines eine bewegungsbahn ausführenden maschinenteils |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| 121 | Ep: the epo has been informed by wipo that ep was designated in this application | ||
| WWE | Wipo information: entry into national phase |
Ref document number: 2007701849 Country of ref document: EP |
|
| WWE | Wipo information: entry into national phase |
Ref document number: 2008553596 Country of ref document: JP Ref document number: 2641684 Country of ref document: CA Ref document number: 200780004727.5 Country of ref document: CN |
|
| NENP | Non-entry into the national phase |
Ref country code: DE |
|
| WWE | Wipo information: entry into national phase |
Ref document number: 2007214177 Country of ref document: AU |
|
| ENP | Entry into the national phase |
Ref document number: 2007214177 Country of ref document: AU Date of ref document: 20070131 Kind code of ref document: A |
|
| WWE | Wipo information: entry into national phase |
Ref document number: 12278796 Country of ref document: US |
