CN103278275B - Serial data transmission torque sensor - Google Patents
Serial data transmission torque sensor Download PDFInfo
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- CN103278275B CN103278275B CN201310197898.1A CN201310197898A CN103278275B CN 103278275 B CN103278275 B CN 103278275B CN 201310197898 A CN201310197898 A CN 201310197898A CN 103278275 B CN103278275 B CN 103278275B
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- infrared
- emitting diode
- disk
- elastic shaft
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Abstract
The invention discloses a serial data transmission torque sensor, comprising first and second connecting disks, first and second elastic shafts, a rotating transformer, a hollow shaft, a strain gauge, an infrared emitting device and an infrared receiving device, wherein the infrared emitting device comprises a signal amplifier, an A/D (analog/digital) converter and infrared emitting diodes with the same number as the bit of the A/D converter; the infrared emitting device comprises a zero clearing sensor, a circular disk, a displacement control sensor and an infrared receiver; the first elastic shaft, the circular disk, the hollow shaft and the second elastic shaft rotate coaxially; along with the rotation of the circular disk, the light emitted by a light emitting diode in the displacement control sensor can pass one tooth groove of the circular disk as the infrared receiver receives one signal emitted by one infrared emitting diode each time; and when the circular disk rotates for a circle each time, the light emitted by a light emitting diode in the zero clearing sensor can be blocked by a flange of the circular disk after the infrared receiving device receives the signal emitted by the last infrared emitting diode. The sensor is reliable to work and high in measurement precision.
Description
Technical field
The invention belongs to torque measurement field, be specifically related to a kind of torque sensor.
Background technology
Torque sensor is a kind of fine measuring instrument measuring various moment of torsion, it uses very extensive at automobile and other mechanical fields, can be used for the measurement of engine output torque and power, also can be used for moment of torsion or the torsion angle of measured automobiles bearing circle generation in electric boosting steering system, some current torque sensors also exist some difficulties in signal transmission, simultaneously measuring accuracy is also not high enough, and adopts radiotelemetric method than the interference being easier to be subject to electromagnetic field and affect the precision of measurement.
Summary of the invention
The object of the invention is to overcome the deficiencies in the prior art, a kind of serial data transmission torque sensor is provided.
The technical scheme that the present invention takes for its technical matters of solution is:
Serial data transmission torque sensor of the present invention comprises the first terminal pad, second terminal pad, first elastic shaft, second elastic shaft, rotary transformer, tubular shaft, foil gauge, infrared launcher and infrared receiving device, described infrared launcher comprises signal amplifier, A/D converter and infrared-emitting diode, the quantity of infrared-emitting diode is identical with the figure place of A/D converter, described infrared receiving device comprises clearing sensor, disk, Bit andits control sensor and infrared remote receiver, wherein, described disk is fixedly installed on the end face of tubular shaft one end, the other end of tubular shaft and one end of the second elastic shaft are fixedly linked, one end and the disk of the first elastic shaft are fixedly linked, first elastic shaft, disk, tubular shaft and the second elastic shaft coaxial rotation, the other end and first terminal pad of the first elastic shaft are fixedly linked, the other end and second terminal pad of the second elastic shaft are fixedly linked, each described foil gauge to be pasted on respectively on the first elastic shaft and to connect to form strain bridge, rotary transformer is fixedly installed on the second elastic shaft, A/D converter, signal amplifier is fixedly installed in the endoporus of tubular shaft respectively, the signal input of signal amplifier is connected with the output interface of described strain bridge, the signal output of signal amplifier is connected with the signal input of A/D converter, the signal output of A/D converter is connected respectively with each infrared-emitting diode, described disk to offer with infrared-emitting diode with the circular hole of quantity and each circular hole is distributed in circumferentially same, disk offers the teeth groove identical with circular hole quantity, infrared-emitting diode is fixedly installed in the circular hole of disk correspondingly, and infrared remote receiver can receive the signal that infrared-emitting diode sends, along with the rotation of disk, while infrared remote receiver often receives the signal that an infrared-emitting diode sends, the light that the light emitting diode in shift control sensor sends can by of a disk teeth groove, the edge of disk is provided with flange, and when disk often rotates a circle, after infrared remote receiver receives the signal that last infrared-emitting diode sends, resetting the light that the light emitting diode in sensor sends can be blocked by the flange of disk.
Further, the present invention also comprises the first rolling bearing and the second rolling bearing, and the first rolling bearing is installed on the first elastic shaft, and the second rolling bearing is installed on the second elastic shaft.
Further, the present invention also comprises voltage stabilizer, voltage stabilizer is fixedly installed in the endoporus of tubular shaft, and the input end of voltage stabilizer is connected with the output terminal of rotary transformer, and the output terminal of voltage stabilizer is connected with the power interface of strain bridge, signal amplifier, A/D converter respectively.
Compared with prior art, the invention has the beneficial effects as follows:
(1) serial data transmission torque sensor of the present invention adopts infrared mode to carry out Signal transmissions, avoids the interference of external electromagnetic field, reliable operation;
(2) the present invention adopts signal amplifier to amplify torque signal, improves the measuring accuracy of sensor;
(3) the present invention adopts the electric energy produced in the rotary transformer course of work to power to the circuit in torque sensor and need not external connection battery, improves the service time of torque sensor, saves resource.
Accompanying drawing explanation
Fig. 1 is the structural representation of serial data transmission torque sensor of the present invention;
Fig. 2 is circuit theory diagrams of the present invention;
Fig. 3 is the structural representation of disk of the present invention;
Fig. 4 is the circuit theory diagrams of clearing sensor of the present invention;
Fig. 5 is the circuit theory diagrams of shift control sensor of the present invention;
In figure, 1-1, the first terminal pad, 1-2, the second terminal pad, 2-1, the first rolling bearing, 2-2, the second rolling bearing, 3-1, the first elastic shaft, 3-2, the second elastic shaft, 4, infrared-emitting diode, 5, tubular shaft, 6, reset sensor, 7, rotary transformer, 8, disk, 9, Bit andits control sensor, 10, infrared remote receiver, 11, foil gauge, 12, A/D converter, 13, voltage stabilizer, 14, signal amplifier, 15 circular holes, 16, teeth groove, 17, flange.
Embodiment
Structure of the present invention and the course of work is described in detail below in conjunction with accompanying drawing.
As depicted in figs. 1 and 2, serial data transmission torque sensor of the present invention mainly comprises the first terminal pad 1-1, the second terminal pad 1-2, the first elastic shaft 3-1, the second elastic shaft 3-2, rotary transformer 7, tubular shaft 5, foil gauge 11, infrared launcher and infrared receiving device.Wherein, infrared launcher comprises signal amplifier 14, A/D converter 12 and infrared-emitting diode 4.The quantity of infrared-emitting diode 4 is identical with the figure place of A/D converter 12.Infrared receiving device comprises clearing sensor 6, disk 8, Bit andits control sensor 9 and infrared remote receiver 10.
As shown in Figure 1, the present invention can comprise the first rolling bearing 2-1, the second rolling bearing 2-2 and voltage stabilizer 13 further.First rolling bearing 2-1 is installed on the first elastic shaft 3-1, and the second rolling bearing 2-2 is installed on the second elastic shaft 3-2.
As shown in Figure 1, disk 8 is fixedly installed on the end face of one end of tubular shaft 5, and the other end of tubular shaft 5 and one end of the second elastic shaft 3-2 are fixedly linked, and one end and the disk 8 of the first elastic shaft 3-1 are fixedly linked.First elastic shaft 3-1, disk 8, tubular shaft 5 and the second elastic shaft 3-2 can coaxial rotation.The other end and the first terminal pad 1-1 of the first elastic shaft 3-1 are fixedly linked, and the other end and the second terminal pad 1-2 of the second elastic shaft 3-2 are fixedly linked.Each foil gauge 11 to be pasted on the first elastic shaft 3-1 with special strain gage adhesive respectively and to connect to form strain bridge.Rotary transformer 7 is fixedly installed on the second elastic shaft 3-2.A/D converter 12, signal amplifier 14 and voltage stabilizer 13 are fixedly installed in the endoporus of tubular shaft 5 respectively.
As shown in Figure 2, the input end of voltage stabilizer 13 is connected with the output terminal of rotary transformer 7 circuit of torque sensor of the present invention, and the output terminal of voltage stabilizer 13 is connected with the power interface of above-mentioned strain bridge, signal amplifier 14 and A/D converter 12 respectively.The signal input of signal amplifier 14 is connected with the output interface of strain bridge, and the signal output of signal amplifier 14 is connected with the signal input of A/D converter 12, and the signal output of A/D converter 12 is connected respectively with each infrared-emitting diode 4.
As shown in Figure 3, disk 8 to offer with infrared-emitting diode 4 with the circular hole 15 of quantity and each circular hole 15 is distributed in circumferentially same.As shown in Figure 1, Figure 2 and Figure 3, infrared-emitting diode 4 is fixedly installed in the circular hole 15 of disk 8 correspondingly, and along with the rotation of disk 8, infrared remote receiver 10 can receive the signal that infrared-emitting diode 4 sends.
In addition, as shown in Figure 3, disk 8 offers the teeth groove 16 identical with circular hole 15 quantity, teeth groove 16 and circular hole one_to_one corresponding.Each teeth groove 16 is distributed in circumferentially same.As the preferred embodiment of the present invention, the circular hole 15 of mutual correspondence and teeth groove 16 are distributed on the same radius of disk 8, make the rotation along with disk 8, while infrared remote receiver 10 often receives the signal that an infrared-emitting diode 4 sends, the light emitting diode D13(in shift control sensor 9 is as shown in Figure 5) luminous energy that sends is accordingly by a teeth groove 16 of disk 8.
The edge of disk 8 is provided with flange 17, make when disk 8 often rotates a circle, after infrared remote receiver 10 receives the signal that last infrared-emitting diode 4 sends, resetting light emitting diode D12(in sensor 10 as shown in Figure 4) light that sends can block by the flange 17 of disk 8.
Principle of work of the present invention is: along with the rotation of serial data transmission torque sensor, rotary transformer 7 is produced electric energy and is processed the voltage produced by voltage stabilizer 13, electric energy is after treatment to strain bridge, signal amplifier 14 and A/D converter 12 are powered, simultaneously, the strain signal that strain bridge produces passes to A/D converter 12 and processes after signal amplifier 14 amplifies, A/D converter 12 controls the light on and off of each infrared-emitting diode 4 according to the signal received, last infrared remote receiver 10 obtains each infrared emission two pole 4 light on and off signal and passes to PC process and draws the moment of torsion that will measure.
Specifically, when serial data transmission torque sensor of the present invention is used for torque measurement, be connected with power-equipment by the first terminal pad 1-1, the second terminal pad 1-2 is connected with load equipment.Under the drive of power-equipment, first terminal pad 1-1 of serial data transmission torque sensor rotates, first terminal pad 1-1 drives the first elastic shaft 3-1 be fixedly linked with it to rotate thus drives disk 8 to rotate, disk 8 drives tubular shaft 5 to rotate thus drives the second elastic shaft 3-2 be fixedly connected with tubular shaft 5 to rotate, and driving load equipment to rotate eventually through the second terminal pad 1-2, the rotary transformer 7 be now installed on the second elastic shaft 3-2 produces electric energy and powers to the circuit of serial data transmission torque sensor of the present invention.Owing to there is load, the first elastic shaft 3-1 is made to produce torsional deflection, the each foil gauge 11 be pasted on the first elastic shaft 3-1 produces elastic deformation thereupon, the elastic deformation signal that strain bridge produces passes to A/D converter 12 after signal amplifier 14 amplifies, and A/D converter 12 converts the signal into binary number and controls corresponding infrared-emitting diode 4 and lights or extinguish.Such as, when the binary number of the corresponding position of infrared-emitting diode 4 is 1, infrared-emitting diode 4 is lighted; When the binary number of the corresponding position of infrared-emitting diode 4 is 0, infrared-emitting diode 4 extinguishes.Rotate a circle as a measuring period using disk 8, along with the rotation of disk 8, when wherein certain infrared-emitting diode 4 and infrared remote receiver 10 just pair time, infrared remote receiver 10 receives the signal that this infrared-emitting diode 4 sends, and pass to PC convert thereof into digital signal store, now, certain teeth groove 16 of disk 8 is just also through displacement transducer 9, and the light that the light emitting diode D13 in shift control sensor 9 sends is irradiated to the receiver in shift control sensor 9 by this teeth groove 16 of disk 8.According to the displacement signal that shift control sensor 9 is experienced, the digital signal that PC Central Plains stores carries out corresponding displacement, i.e. the binary number of former storage moves one to a high position successively.After infrared remote receiver 10 receives the signal that last infrared-emitting diode 4 sends, PC processes the moment of torsion drawing and will measure to stored digital signal, simultaneously, flange 17 part of disk 8 is through resetting the position at sensor 6 place, the light that light emitting diode D12 now in clearing sensor 6 sends is sheltered from by the flange 17 of disk 8, reset the signal that sensor 6 sends zeros data, PC is then by the data dump in former storage unit, and etc. the data of next measuring period to be stored, so far complete a torque measurement.
Serial data transmission torque sensor of the present invention adopts infrared mode to carry out Signal transmissions, avoids the interference of the factors such as external electromagnetic field, reliable operation, and improves the degree of accuracy of measurement.
Claims (3)
1. a serial data transmission torque sensor, comprise the first elastic shaft (3-1), the second elastic shaft (3-2), tubular shaft (5), foil gauge (11), infrared launcher and infrared receiving device, it is characterized in that: also comprise the first terminal pad (1-1), the second terminal pad (1-2) and rotary transformer (7), described infrared launcher comprises signal amplifier (14), A/D converter (12) and infrared-emitting diode (4), the quantity of infrared-emitting diode (4) is identical with the figure place of A/D converter (12), described infrared receiving device comprises clearing sensor (6), disk (8), Bit andits control sensor (9) and infrared remote receiver (10), wherein, described disk (8) is fixedly installed on the end face of tubular shaft (5) one end, the other end of tubular shaft (5) and one end of the second elastic shaft (3-2) are fixedly linked, one end and the disk (8) of the first elastic shaft (3-1) are fixedly linked, first elastic shaft (3-1), disk (8), tubular shaft (5) and the second elastic shaft (3-2) coaxial rotation, the other end and first terminal pad (1-1) of the first elastic shaft (3-1) are fixedly linked, the other end and second terminal pad (1-2) of the second elastic shaft (3-2) are fixedly linked, each described foil gauge (11) is pasted on the first elastic shaft (3-1) respectively and goes up and connect to form strain bridge, rotary transformer (7) is fixedly installed on the second elastic shaft (3-2), A/D converter (12), signal amplifier (14) is fixedly installed in the endoporus of tubular shaft (5) respectively, the signal input of signal amplifier (14) is connected with the output interface of described strain bridge, the signal output of signal amplifier (14) is connected with the signal input of A/D converter (12), the signal output of A/D converter (12) is connected respectively with each infrared-emitting diode (4), described disk (8) to offer with infrared-emitting diode (4) with the circular hole (15) of quantity and each circular hole (15) is distributed in circumferentially same, disk (8) offers the teeth groove (16) identical with circular hole (15) quantity,
Infrared-emitting diode (4) is fixedly installed in the circular hole (15) of disk (8) correspondingly, and infrared remote receiver (10) can receive the signal that infrared-emitting diode (4) sends; Along with the rotation of disk (8), while infrared remote receiver (10) often receives the signal that an infrared-emitting diode (4) sends, the light that the light emitting diode in shift control sensor (9) sends can by a teeth groove (16) of disk (8); The edge of disk (8) is provided with flange (17), when disk (8) often rotates a circle, after infrared remote receiver (10) receives the signal that last infrared-emitting diode (4) sends, resetting the light that the light emitting diode in sensor (6) sends can be blocked by the flange of disk (8) (17).
2. serial data transmission torque sensor according to claim 1, it is characterized in that: also comprise the first rolling bearing (2-1) and the second rolling bearing (2-2), first rolling bearing (2-1) is installed on the first elastic shaft (3-1), and the second rolling bearing (2-2) is installed on the second elastic shaft (3-2).
3. serial data transmission torque sensor according to claim 1 and 2, it is characterized in that: also comprise voltage stabilizer (13), voltage stabilizer (13) is fixedly installed in the endoporus of tubular shaft (5), the input end of voltage stabilizer (13) is connected with the output terminal of rotary transformer (7), and the output terminal of voltage stabilizer (13) is connected with the power interface of strain bridge, signal amplifier (14), A/D converter (12) respectively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310197898.1A CN103278275B (en) | 2013-05-25 | 2013-05-25 | Serial data transmission torque sensor |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310197898.1A CN103278275B (en) | 2013-05-25 | 2013-05-25 | Serial data transmission torque sensor |
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| Publication Number | Publication Date |
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| CN103278275A CN103278275A (en) | 2013-09-04 |
| CN103278275B true CN103278275B (en) | 2015-04-29 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201310197898.1A Expired - Fee Related CN103278275B (en) | 2013-05-25 | 2013-05-25 | Serial data transmission torque sensor |
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Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103743508B (en) * | 2013-12-27 | 2015-12-02 | 中国科学院苏州生物医学工程技术研究所 | Torsional moment test macro and torque sensor device thereof |
| CN106644196A (en) * | 2016-11-02 | 2017-05-10 | 中国航天空气动力技术研究院 | Dynamic torque measurement sensor with speed measurement function |
| CN109017161A (en) * | 2018-08-27 | 2018-12-18 | 爱柯迪股份有限公司 | High-intensitive drive shaft |
| CN109893035B (en) * | 2019-03-21 | 2024-04-12 | 深圳银星智能集团股份有限公司 | Signal transmission device and mobile robot |
| CN111623912B (en) * | 2020-05-24 | 2021-12-28 | 哈尔滨理工大学 | Wireless torque sensor |
Citations (6)
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|---|---|---|---|---|
| GB1585175A (en) * | 1977-07-13 | 1981-02-25 | Talbot Motor | Measurement apparatus for use with a rotary member |
| CN1311431A (en) * | 2000-03-02 | 2001-09-05 | 张力 | Sensor signal derivative device on rotary body |
| CN2641619Y (en) * | 2003-04-24 | 2004-09-15 | 武汉理工大学 | Infrared torque measurer |
| CN1779426A (en) * | 2004-11-19 | 2006-05-31 | 张力 | Rotating torque sensor with dynamic power supply |
| CN2872500Y (en) * | 2005-10-26 | 2007-02-21 | 北方工业大学 | Infrared telemetering device for spiale torque signal |
| JP3181765U (en) * | 2012-12-07 | 2013-02-21 | ユニパルス株式会社 | Electric motor |
-
2013
- 2013-05-25 CN CN201310197898.1A patent/CN103278275B/en not_active Expired - Fee Related
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1585175A (en) * | 1977-07-13 | 1981-02-25 | Talbot Motor | Measurement apparatus for use with a rotary member |
| CN1311431A (en) * | 2000-03-02 | 2001-09-05 | 张力 | Sensor signal derivative device on rotary body |
| CN2641619Y (en) * | 2003-04-24 | 2004-09-15 | 武汉理工大学 | Infrared torque measurer |
| CN1779426A (en) * | 2004-11-19 | 2006-05-31 | 张力 | Rotating torque sensor with dynamic power supply |
| CN2872500Y (en) * | 2005-10-26 | 2007-02-21 | 北方工业大学 | Infrared telemetering device for spiale torque signal |
| JP3181765U (en) * | 2012-12-07 | 2013-02-21 | ユニパルス株式会社 | Electric motor |
Non-Patent Citations (1)
| Title |
|---|
| 数据式转矩转速传感器在旋转动力装置测试中的应用;李敏等;《传感器世界》;20031031;第三节以及图1 * |
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