CN114034241B - Precise coaxial quadruple angular displacement sensor - Google Patents
Precise coaxial quadruple angular displacement sensor Download PDFInfo
- Publication number
- CN114034241B CN114034241B CN202210024551.6A CN202210024551A CN114034241B CN 114034241 B CN114034241 B CN 114034241B CN 202210024551 A CN202210024551 A CN 202210024551A CN 114034241 B CN114034241 B CN 114034241B
- Authority
- CN
- China
- Prior art keywords
- resistance
- reed
- angular displacement
- displacement sensor
- insulating sleeve
- 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.)
- Active
Links
Images
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
- G01B7/30—Measuring arrangements characterised by the use of electric or magnetic techniques for measuring angles or tapers; for testing the alignment of axes
Abstract
The invention relates to a precise coaxial quadruple angular displacement sensor, which comprises a shell, wherein a rotatable rotating shaft is supported in a cavity of the shell, two resistance sheets are arranged at intervals in the axial direction, the two resistance sheets are arranged in opposite directions, two ends of the rotating shaft respectively penetrate through the corresponding resistance sheets and the end wall of the shell, each resistance sheet comprises two conductive belts and two resistance belts, the two conductive belts are fixed on a substrate, two spaced resistance belts are arranged in the region between the two conductive belts, an electric brush component is fixedly connected to the rotating shaft and comprises an insulating sleeve, the insulating sleeve extends between the two resistance sheets, two brush holders are arranged on two side surfaces of the insulating sleeve at intervals in the radial direction, a reed is arranged on each brush holder, two electric brushes are arranged on each reed and are respectively contacted with the conductive belts and the resistance belts on the corresponding resistance sheets, the electric brushes of the two brush holders positioned on the same side of the insulating sleeve are arranged in a staggered manner in the radial direction, and any two adjacent electric brushes are arranged in a staggered manner in the circumferential direction.
Description
Technical Field
The invention relates to the field of electronic elements, in particular to a precise coaxial quadruple angular displacement sensor.
Background
The angular displacement sensor is a sensitive element which can convert the mechanical angular displacement change into resistance and voltage output which form a certain functional relation with the mechanical angular displacement change, and is widely applied to the fields of aviation, aerospace and the like. At present, most of common angular displacement sensors in the market are single-connection, and a few angular displacement sensors are double-connection and triple-connection, namely, each connection contains an independent resistance chip. And with the increase of the number of the connection, the volume of the sensor is increased, and even if the height of each connection is compressed, the total height of the duplex and the triple angular displacement sensors adopting the technology is still larger. With the improvement of the requirements of national defense weapon equipment systems and electronic complete machines and the complication of application environments, the angular displacement sensor is gradually developed towards high precision, high reliability, multiple connection, miniaturization and the like. Therefore, how to develop a high-precision, high-reliability and small-volume multi-connected angular displacement sensor is a problem which needs to be solved urgently by people in the related field.
Disclosure of Invention
The invention aims to overcome the defects of the prior art and provides a precise coaxial quadruple angular displacement sensor which can realize coaxial quadruple output and has small main body height, thereby greatly saving the space of the whole machine. In addition, the sensor has high linear precision and can be well used under the environment condition of high vacuum degree ranging from minus 90 ℃ to plus 100 ℃.
The purpose of the invention is realized as follows: a precise coaxial quadruple angular displacement sensor comprises a shell, a rotary rotating shaft supported in a cavity of the shell, and two resistance discs arranged at intervals in the axial direction, wherein the two resistance discs are arranged oppositely, the two ends of the rotating shaft respectively penetrate through the corresponding resistance card and the end wall of the shell body, the resistance card comprises two conductive strips fixed on the substrate and two resistance strips, two resistance strips at intervals are arranged in the area between the two conductive strips, the rotating shaft is fixedly connected with an electric brush component, the electric brush component comprises an insulating sleeve, the insulating sleeve extends between two resistance sheets, two sides of the insulating sleeve are respectively provided with two electric brush seats which are spaced in the radial direction, the electric brush seats are provided with reeds, the two electric brushes are arranged on the reed, the two electric brushes are respectively contacted with the conductive band and the resistance band on the corresponding resistance sheet, the electric brushes of the two electric brush seats positioned on the same side of the insulating sleeve are arranged in a staggered mode in the radial direction, and any two adjacent electric brushes are arranged in a staggered mode in the circumferential direction.
The shell comprises a base and an upper cover which are connected through bolts, bearing mounting holes are formed in the base and the upper cover, bearings are mounted in the bearing mounting holes, the base is fixedly connected with the rotating shaft through the bearings in the bearing mounting holes, and the bearings covering the bearing mounting holes are connected with the rotating shaft through support rings.
The insulating sleeve is sleeved on the rotating shaft, a limiting shaft shoulder used for limiting the insulating sleeve is arranged on the rotating shaft, and the insulating sleeve is connected with the limiting shaft shoulder through a plurality of screws.
The resistance card is provided with a first conductive band, a first resistance band, a second resistance band and a second conductive band in sequence from inside to outside, the outer edge of the resistance card is provided with a leading-out end, the conductive bands are electrically connected with the leading-out end, and two end parts of the resistance band are respectively electrically connected with the leading-out end.
The substrate is made of polyimide.
The resistance card is a printed resistance card.
A first brush holder and a second brush holder are bonded on the insulating sleeve, the first brush holder is positioned at the inner side of the second brush holder, and the extension length of a first reed on the first brush holder is smaller than that of a second reed on the second brush holder; bonding third brush holder, fourth brush holder below the insulating cover, the third brush holder is located the inboard of fourth brush holder is through two brushes of rivet connection on the reed, and the epitaxial length of the fourth reed on the fourth brush holder is greater than the epitaxial length of the third reed on the third brush holder, and the third reed is staggered with first reed on the circumference and is arranged, and the fourth reed is staggered with the second reed on the circumference.
The resistance band is a major arc structure, the conductive band comprises a ring-shaped base part, and a convex arm is arranged on the side surface of the ring-shaped base part and extends into a gap between two end parts of the adjacent resistance band.
The rotating shaft is made of titanium alloy.
The bearing is a solid lubrication bearing, and a molybdenum disulfide film layer is plated on the surface of the bearing.
The invention provides a precise coaxial quadruple angular displacement sensor, which can realize coaxial quadruple output under the driving action of a rotating shaft, and meanwhile, the sensor has small main body height which can be equal to or less than 18mm, thereby greatly saving the space of the whole machine. The invention also has high linear precision and can be well used under the conditions of high vacuum degree and environment temperature of minus 90 ℃ to plus 100 ℃.
The invention is further described with reference to the following figures and specific examples.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a schematic structural diagram of a resistor disc;
FIG. 3 is a schematic view of a brush member;
fig. 4 is a plan view of the brush member.
In the drawing, 6 is a bearing, 9 is a lead wire, 10 is a housing, 11 is a base, 12 is an upper cover, 31 is a substrate, 32 is a first conductive tape, 33 is a first resistance tape, 34 is a second resistance tape, 35 is a second conductive tape, 36 is a lead-out terminal, 40 is a brush member, 41 is an insulating sleeve, 43 is a screw, 44 is a rotating shaft, 45 is a first spring, 46 is a rivet, 47 is a brush, 48 is a first brush holder, 49 is a second brush holder, 50 is a support ring, 51 is a third brush holder, 52 is a fourth brush holder, 411 is a base, 412 is a protruding arm, 410 is a second spring, 30 is a resistance sheet, 420 is a limiting shaft shoulder, 511 is a third spring, and 521 is a fourth spring.
Detailed Description
Specific embodiments of the present invention will be described in detail with reference to the accompanying drawings.
Referring to fig. 1-4, an embodiment of a precision coaxial quadruple angular displacement sensor, includes a housing 10, a rotatable shaft 44 supported in a cavity of the housing 10, and two resistive sheets 30 arranged at intervals in an axial direction, wherein the two resistive sheets 30 are arranged opposite to each other to ensure signal synchronization. The two ends of the rotating shaft 44 respectively penetrate through the corresponding resistance card 30 and the end wall of the housing 10, the rotating shaft 44 is made of titanium alloy, the housing 10 may include a base 11 and an upper cover 12 connected by bolts, and a hollow cavity structure is formed by the base 11 and the upper cover 12. In this embodiment, the base 11 and the upper cover 12 are both provided with bearing mounting holes, the bearings 6 are mounted in the bearing mounting holes, the base 11 is fixedly connected with the rotating shaft 44 through the bearings 6 in the bearing mounting holes, and the bearings 6 in the bearing mounting holes of the upper cover 12 are connected with the rotating shaft 44 through the support ring 50; further, the bearing 6 is a solid lubrication bearing, a molybdenum disulfide film layer is plated on the surface of the bearing 6, and the structure is adopted to ensure that the cold welding phenomenon does not occur to parts of each moving mechanism under high vacuum degree. The resistance card 30 comprises two conductive strips and two resistance strips which are fixed on a substrate 31, the substrate 31 can be made of polyimide, the material has excellent wear resistance and lubricity, strong space irradiation resistance and good temperature performance, and can be stably used for a long time within the temperature range of 90 ℃ to +100 ℃; other parts and materials can be stably used for a long time within the temperature range of 90 ℃ to +100 ℃.
Two spaced resistance bands are arranged in the area between the two conductive bands, specifically, in this embodiment, the resistance sheet 30 is provided with the first conductive band 32, the first resistance band 33, the second resistance band 34, and the second conductive band 35 sequentially from inside to outside, the resistance band is in a major arc structure, the conductive band includes a ring-shaped base portion 411, a convex arm 412 is provided on the side of the ring-shaped base portion 411, and the convex arm 412 extends into the gap between the two end portions of the adjacent resistance band, so as to ensure a compact structure. The outer edge of the resistance sheet 30 is provided with the leading-out end 36, so that the width of the resistance band is greatly increased, the trimming margin is improved, the conductive band is electrically connected with the leading-out end 36, two end parts of the resistance band are respectively electrically connected with the leading-out end 36, and the leading-out end 36 can be led out through the leading-out wire 9. Furthermore, the resistance card 30 is a printed resistance card, and the effective electrical stroke deviation of the resistance card 30 is small, and the initial linear precision is high, so that the high linear precision requirement of the sensors of less than or equal to +/-0.15% can be ensured.
The rotating shaft 44 is fixedly connected with the brush component 40, the brush component 40 comprises an insulating sleeve 41, the insulating sleeve 41 extends between the two resistance cards 30, the two resistance cards 30 can be symmetrically arranged relative to the insulating sleeve 41, the insulating sleeve 41 can be sleeved on the rotating shaft 44, a limiting shaft shoulder 420 used for limiting the insulating sleeve 41 is arranged on the rotating shaft 44, the limiting shaft shoulder 420 limits the axial movement of the insulating sleeve 41, and the insulating sleeve 41 is connected with the limiting shaft shoulder 420 through a plurality of screws 43. The both sides face of insulating cover 41 all sets up two radial spaced brush holders, sets up the reed on the brush holder, set up two brushes 47 on the reed, two brushes 47 respectively with correspond the conduction band and the contact of resistance strip on the resistance card 30, lie in insulating cover 41 with the brush 47 of two brush holders of one side stagger in the footpath and arrange, adopt this structure and resistance strip, the conduction band adaptation of arranging from inside to outside on the resistance card 30, arbitrary two adjacent brushes 47 stagger in the circumferencial direction and arrange, guarantee compact structure, two resistance cards 30 symmetrical arrangement can guarantee that the signal is synchronous.
Specifically, in this embodiment, the insulating sleeve 41 is bonded with the first brush holder 48 and the second brush holder 49, and the brush holders on the same surface of the insulating sleeve 41 can be adjusted in relative positions as required, so as to ensure zero position accuracy between two pairs. The first brush holder 48 is positioned at the inner side of the second brush holder 49, the spring plates are connected with two brushes 47 through rivets 46, and the extension length of the first spring plate 45 on the first brush holder 48 is smaller than that of the second spring plate 410 on the second brush holder 49. A third brush holder 51 and a fourth brush holder 52 are bonded below the insulating sleeve 41, the third brush holder 51 is located on the inner side of the fourth brush holder 52, two brushes 47 are connected to reeds through rivets 46, the extension length of a fourth reed 521 on the fourth brush holder 52 is greater than that of a third reed 511 on the third brush holder 51, the third reed 511 and the first reed 45 are arranged in a staggered manner on the circumference, the fourth reed 521 on the fourth brush holder 52 and the second reed 410 are arranged in a staggered manner on the circumference, the first brush holder 48 and the third brush holder 51 are arranged symmetrically, and the second brush holder 49 and the fourth brush holder 52 are arranged symmetrically and can be matched with the resistor sheet 30 to ensure signal synchronization.
The invention provides a precise coaxial quadruple angular displacement sensor, which can realize coaxial quadruple output and has small main body height, thereby greatly saving the space of the whole machine. In addition, the angular displacement sensor has high linear precision and can be well used under the environment condition of high vacuum degree ranging from minus 90 ℃ to plus 100 ℃.
The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and it is apparent that those skilled in the art can make various changes and modifications to the present invention without departing from the spirit and scope of the present invention. Thus, if such modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalents, the present invention is also intended to include such modifications and variations.
Claims (10)
1. The utility model provides a precision coaxial quadruple angular displacement sensor which characterized in that: the resistance card comprises a shell (10), a rotatable rotating shaft (44) is supported in a cavity of the shell (10), two resistance cards (30) are arranged at intervals in the axial direction, the two resistance cards (30) are arranged oppositely, two ends of the rotating shaft (44) penetrate through the corresponding resistance cards (30) and end walls of the shell (10) respectively, each resistance card (30) comprises two conductive belts and two resistance belts which are fixed on a substrate (31), two spaced resistance belts are arranged between the two conductive belts in an area, an electric brush component (40) is fixedly connected to the rotating shaft (44), the electric brush component (40) comprises an insulating sleeve (41), the insulating sleeve (41) extends between the two resistance cards (30), two brush seats which are spaced in the radial direction are arranged on two side faces of the insulating sleeve (41), reed plates are arranged on the electric brush seats, two electric brushes (47) are arranged on the reed plates, and the two electric brushes (47) are respectively contacted with the conductive belts and the resistance belts on the corresponding resistance cards (30), the electric brushes (47) of the two electric brush seats positioned on the same side of the insulating sleeve (41) are arranged in a staggered mode in the radial direction, and any two adjacent electric brushes (47) are arranged in a staggered mode in the circumferential direction.
2. The precision coaxial quad angular displacement sensor of claim 1, wherein:
casing (10) include base (11) and upper cover (12) through bolted connection, all set up the bearing mounting hole on base (11) and upper cover (12), installation bearing (6) in the bearing mounting hole, base (11) are connected with pivot (44) admittedly through bearing (6) in its bearing mounting hole, bearing (6) of bearing mounting hole are passed through support ring (50) and are connected with pivot (44) on upper cover (12).
3. The precision coaxial quad angular displacement sensor of claim 1, wherein: insulating cover (41) cover is put on pivot (44), set up spacing shaft shoulder (420) that are used for insulating cover (41) spacing on pivot (44), insulating cover (41) are connected with spacing shaft shoulder (420) through a plurality of screws (43).
4. The precision coaxial quad angular displacement sensor of claim 1, wherein: the resistance card (30) is provided with a first conductive band (32), a first resistance band (33), a second resistance band (34) and a second conductive band (35) from inside to outside in sequence, the outer edge of the resistance card (30) is provided with a leading-out end (36), the conductive band is electrically connected with the leading-out end (36), and two end parts of the resistance band are electrically connected with the leading-out end (36) respectively.
5. The precision coaxial quad angular displacement sensor of claim 1, wherein: the substrate (31) is made of polyimide.
6. The precision coaxial quad angular displacement sensor of claim 1, wherein: the resistor disc (30) is a printed resistor disc.
7. The precision coaxial quad angular displacement sensor of any of claims 1 or 4, wherein: a first electric brush seat (48) and a second electric brush seat (49) are bonded on the insulating sleeve (41), the first electric brush seat (48) is positioned at the inner side of the second electric brush seat (49), and the extension length of a first reed (45) on the first electric brush seat (48) is smaller than that of a second reed (410) on the second electric brush seat (49); a third brush holder (51) and a fourth brush holder (52) are bonded below the insulating sleeve (41), the third brush holder (51) is positioned on the inner side of the fourth brush holder (52), two brushes (47) are connected on the reeds through rivets (46), the extension length of a fourth reed (521) on the fourth brush holder (52) is greater than that of a third reed (511) on the third brush holder (51), the third reed (511) and the first reed (45) are arranged in a staggered mode on the circumference, and the fourth reed (521) and the second reed (410) are arranged in a staggered mode on the circumference.
8. The precision coaxial quad angular displacement sensor of claim 1, wherein: the resistance band is of a major arc structure, the conductive band comprises a ring-shaped base portion (411), a convex arm (412) is arranged on the side face of the ring-shaped base portion (411), and the convex arm (412) extends into a gap between two end portions of the adjacent resistance band.
9. The precision coaxial quad angular displacement sensor of claim 1, wherein: the shaft (44) is made of a titanium alloy.
10. The precision coaxial quad angular displacement sensor of claim 2, wherein: the bearing (6) is a solid lubrication bearing, and a molybdenum disulfide film layer is plated on the surface of the bearing (6).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210024551.6A CN114034241B (en) | 2022-01-11 | 2022-01-11 | Precise coaxial quadruple angular displacement sensor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210024551.6A CN114034241B (en) | 2022-01-11 | 2022-01-11 | Precise coaxial quadruple angular displacement sensor |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN114034241A CN114034241A (en) | 2022-02-11 |
| CN114034241B true CN114034241B (en) | 2022-03-22 |
Family
ID=80141602
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210024551.6A Active CN114034241B (en) | 2022-01-11 | 2022-01-11 | Precise coaxial quadruple angular displacement sensor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN114034241B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114383496A (en) * | 2022-03-23 | 2022-04-22 | 四川永星电子有限公司 | Small-size large-stroke angular displacement sensor |
Citations (24)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6488201A (en) * | 1987-09-30 | 1989-04-03 | Toshiba Corp | Angle detector |
| EP0726452A2 (en) * | 1995-02-07 | 1996-08-14 | Robertshaw Controls Company | Angular displacement signalling device |
| JPH0942913A (en) * | 1995-07-31 | 1997-02-14 | Mikuni Corp | Position sensor |
| US5657544A (en) * | 1995-09-26 | 1997-08-19 | Ntn Corporation | Device for detecting the angle of rotation |
| JP2000009415A (en) * | 1998-06-24 | 2000-01-14 | Toyota Motor Corp | Rotary angle detector for multiple revolving rotor |
| JP2001235307A (en) * | 1999-03-15 | 2001-08-31 | Tadatoshi Goto | Rotary type position detecting apparatus |
| US6323779B1 (en) * | 1998-12-04 | 2001-11-27 | Toyota Jidosha Kabushiki Kaisha | Displacement sensing apparatus |
| EP1338500A1 (en) * | 2002-02-26 | 2003-08-27 | Yamaha Hatsudoki Kabushiki Kaisha | Sensor for detecting a throttle grip rotation |
| TWI252908B (en) * | 2004-11-09 | 2006-04-11 | Jack Chen | Angular position sensor |
| CN101561246A (en) * | 2009-04-03 | 2009-10-21 | 俞志根 | Double-track two-point output angular displacement sensor without moving contact output |
| CN201348511Y (en) * | 2009-01-23 | 2009-11-18 | 上海沃巴弗电子科技有限公司 | Throttle sensor with switch |
| CN201548198U (en) * | 2009-08-14 | 2010-08-11 | 宁波市北仑机械电器有限公司 | Conductive plastic center tap angle displacement sensor |
| CN101865700A (en) * | 2009-04-15 | 2010-10-20 | 上海沃巴弗电子科技有限公司 | Displacement sensor |
| CN201816243U (en) * | 2010-09-28 | 2011-05-04 | 山东淄博环宇桥梁模板有限公司 | Bidirectional synchronous displacement device for die plates |
| CN104567649A (en) * | 2013-10-22 | 2015-04-29 | 北京精密机电控制设备研究所 | Integrated triply-redundant angular displacement sensor |
| CN105547122A (en) * | 2014-10-31 | 2016-05-04 | 北京精密机电控制设备研究所 | Zero micro-adjusting high-precision split type four-redundancy displacement sensor |
| CN105737730A (en) * | 2015-02-12 | 2016-07-06 | 江西天河传感器科技有限公司 | Counting pulse angular displacement sensor and working method thereof |
| CN206146373U (en) * | 2016-10-21 | 2017-05-03 | 安徽沃巴弗电子科技有限公司 | Modified rotation angle sensor |
| CN109029240A (en) * | 2018-09-13 | 2018-12-18 | 四川永星电子有限公司 | A kind of hollow coaxial duplex multi-turn Precise Angular Displacement Sensor |
| CN208443578U (en) * | 2018-06-11 | 2019-01-29 | 上海电器科学研究院 | Robot retarder angle displacement measuring device |
| CN208751477U (en) * | 2018-09-13 | 2019-04-16 | 四川永星电子有限公司 | A kind of Precise Angular Displacement Sensor with direction switch |
| CN111432756A (en) * | 2017-12-22 | 2020-07-17 | 科洛普拉斯特公司 | Base plate and sensor assembly part of an ostomy system with a leak sensor |
| CN113483653A (en) * | 2021-07-28 | 2021-10-08 | 北京精密机电控制设备研究所 | Anti-impact rudder shaft angular displacement measuring device |
| CN214502353U (en) * | 2020-12-30 | 2021-10-26 | 浙江工业大学 | Multi-degree-of-freedom coaxial adjusting mechanism of loading mechanism |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE10254552A1 (en) * | 2002-11-21 | 2004-06-03 | Siemens Ag | An angular position sensor |
| CN103328919B (en) * | 2011-01-19 | 2016-08-17 | 瑞尼斯豪公司 | Analogue measurement for machine tool is popped one's head in and operational approach |
| DK2843778T3 (en) * | 2013-09-02 | 2018-10-01 | Ltn Servotechnik Gmbh | CONTACT UNIT AND METHOD OF MONITORING A CONTACT |
| CN208753075U (en) * | 2018-07-11 | 2019-04-16 | 四川永星电子有限公司 | A kind of tandem steel pipe resistor |
| CN213179851U (en) * | 2020-09-24 | 2021-05-11 | 杭州永泰测试仪器有限公司 | Sensor adopting quadruple combined resistance strain gauge |
-
2022
- 2022-01-11 CN CN202210024551.6A patent/CN114034241B/en active Active
Patent Citations (24)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6488201A (en) * | 1987-09-30 | 1989-04-03 | Toshiba Corp | Angle detector |
| EP0726452A2 (en) * | 1995-02-07 | 1996-08-14 | Robertshaw Controls Company | Angular displacement signalling device |
| JPH0942913A (en) * | 1995-07-31 | 1997-02-14 | Mikuni Corp | Position sensor |
| US5657544A (en) * | 1995-09-26 | 1997-08-19 | Ntn Corporation | Device for detecting the angle of rotation |
| JP2000009415A (en) * | 1998-06-24 | 2000-01-14 | Toyota Motor Corp | Rotary angle detector for multiple revolving rotor |
| US6323779B1 (en) * | 1998-12-04 | 2001-11-27 | Toyota Jidosha Kabushiki Kaisha | Displacement sensing apparatus |
| JP2001235307A (en) * | 1999-03-15 | 2001-08-31 | Tadatoshi Goto | Rotary type position detecting apparatus |
| EP1338500A1 (en) * | 2002-02-26 | 2003-08-27 | Yamaha Hatsudoki Kabushiki Kaisha | Sensor for detecting a throttle grip rotation |
| TWI252908B (en) * | 2004-11-09 | 2006-04-11 | Jack Chen | Angular position sensor |
| CN201348511Y (en) * | 2009-01-23 | 2009-11-18 | 上海沃巴弗电子科技有限公司 | Throttle sensor with switch |
| CN101561246A (en) * | 2009-04-03 | 2009-10-21 | 俞志根 | Double-track two-point output angular displacement sensor without moving contact output |
| CN101865700A (en) * | 2009-04-15 | 2010-10-20 | 上海沃巴弗电子科技有限公司 | Displacement sensor |
| CN201548198U (en) * | 2009-08-14 | 2010-08-11 | 宁波市北仑机械电器有限公司 | Conductive plastic center tap angle displacement sensor |
| CN201816243U (en) * | 2010-09-28 | 2011-05-04 | 山东淄博环宇桥梁模板有限公司 | Bidirectional synchronous displacement device for die plates |
| CN104567649A (en) * | 2013-10-22 | 2015-04-29 | 北京精密机电控制设备研究所 | Integrated triply-redundant angular displacement sensor |
| CN105547122A (en) * | 2014-10-31 | 2016-05-04 | 北京精密机电控制设备研究所 | Zero micro-adjusting high-precision split type four-redundancy displacement sensor |
| CN105737730A (en) * | 2015-02-12 | 2016-07-06 | 江西天河传感器科技有限公司 | Counting pulse angular displacement sensor and working method thereof |
| CN206146373U (en) * | 2016-10-21 | 2017-05-03 | 安徽沃巴弗电子科技有限公司 | Modified rotation angle sensor |
| CN111432756A (en) * | 2017-12-22 | 2020-07-17 | 科洛普拉斯特公司 | Base plate and sensor assembly part of an ostomy system with a leak sensor |
| CN208443578U (en) * | 2018-06-11 | 2019-01-29 | 上海电器科学研究院 | Robot retarder angle displacement measuring device |
| CN109029240A (en) * | 2018-09-13 | 2018-12-18 | 四川永星电子有限公司 | A kind of hollow coaxial duplex multi-turn Precise Angular Displacement Sensor |
| CN208751477U (en) * | 2018-09-13 | 2019-04-16 | 四川永星电子有限公司 | A kind of Precise Angular Displacement Sensor with direction switch |
| CN214502353U (en) * | 2020-12-30 | 2021-10-26 | 浙江工业大学 | Multi-degree-of-freedom coaxial adjusting mechanism of loading mechanism |
| CN113483653A (en) * | 2021-07-28 | 2021-10-08 | 北京精密机电控制设备研究所 | Anti-impact rudder shaft angular displacement measuring device |
Also Published As
| Publication number | Publication date |
|---|---|
| CN114034241A (en) | 2022-02-11 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US2896033A (en) | Printed circuit assembly | |
| CN114034241B (en) | Precise coaxial quadruple angular displacement sensor | |
| US5588843A (en) | Rotary electrical connector | |
| US4386386A (en) | Capacitor type sensor for detecting displacement or load | |
| JP2002195904A (en) | Pressure sensor | |
| US4333068A (en) | Position transducer | |
| US3675093A (en) | Variable capacitor | |
| US2846541A (en) | Rotational speed governor | |
| US4477859A (en) | Rotary electric component | |
| US4268889A (en) | Rotary displacement capacitive transducers | |
| US2821584A (en) | Rotary switching device and contact elements therefor | |
| US2918542A (en) | Hermetically sealed rotary switches | |
| US3411362A (en) | Direct drive pressure transducer | |
| GB1280088A (en) | Improvements in and relating to electric variable capacitors | |
| JPS6336910Y2 (en) | ||
| CN112050728A (en) | Novel high-temperature-resistant angular displacement sensor designed for assembly | |
| CN216645219U (en) | Miniature potentiometer type angle sensor | |
| CN111834073B (en) | Hollow split type conductive plastic potentiometer | |
| SU892544A1 (en) | Current-collecting device for electric connection of rotating part to housting | |
| US3242400A (en) | Miniature variable capacitors | |
| US3221224A (en) | Variable electrical capacitor | |
| CN217358406U (en) | Ultra-thin hollow type angular displacement sensor | |
| US3775647A (en) | Variable impedance | |
| JP2022049477A (en) | Resistance substrate and variable resistor provided with the same | |
| US2951225A (en) | Mechanical-electrical transducer |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| PP01 | Preservation of patent right |
Effective date of registration: 20221017 Granted publication date: 20220322 |
|
| PP01 | Preservation of patent right |