CN2709964Y - Tension sensor - Google Patents
Tension sensor Download PDFInfo
- Publication number
- CN2709964Y CN2709964Y CN 200420081249 CN200420081249U CN2709964Y CN 2709964 Y CN2709964 Y CN 2709964Y CN 200420081249 CN200420081249 CN 200420081249 CN 200420081249 U CN200420081249 U CN 200420081249U CN 2709964 Y CN2709964 Y CN 2709964Y
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- circuit
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- sensor
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- bridge
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Abstract
The utility model relates to a sensor for measuring tension of wire comprising an axis of the sensor, a circuit board and a casing. The axis of the sensor with structure of double perforated beams is bonded with four resistor-pieces strain gages by which a bridge is formed. The axis of the sensor and the circuit board are installed inside the cylindrical casing. The circuit is composed of a full-bridge circuit, a primary amplification circuit, a secondary amplification circuit, a filter and a voltage feeding circuit. The utility model which can be used to detect the tension of various wires has simple structure, convenient operation and high detection sensitivity.
Description
Technical field
The utility model belongs to sensor technical field, is specifically related to a kind of sensor that is used to measure wire tension.
Background technology
Along with the development of China's telecommunication cause, optical fiber, optical cable and various extraordinary wire rod range of application constantly enlarge, and have proposed requirements at the higher level for manufacturing quality.The tension force of wire rod is the key factor of control of quality.In one group or a branch of optical fiber or the cable, require every fibre or line should have same tension force, this detects with regard to requiring a kind of special instrument.But, the instrument of present related detection wire tension, structure more complicated, accuracy of detection are not high, operate cumbersome.
Summary of the invention
The purpose of this utility model is to propose a kind of simple in structure, and is easy to operate, detects sensitive tension pick-up.
The tension pick-up that the utility model proposes is made up of sensor axis, circuit board and shell, and its structure as shown in Figure 1.The front end of sensor axis 4 is the guide wheel installation shaft, and the rear end is the axle stiff end, and fastening with shell, center section is the diplopore girder construction, and four sheet resistance strainometers are pasted in the diplopore wall outside respectively, form full electric bridge, and are connected to by lead on the connection terminal of rear end; Sensor outer housing 3 is a tubular structure, in sensor axis 4 and transmission circuit plate 5 are installed on; The front end of sensor axis 4 stretches out shell, is used for installing guide wheel 10, and the shell front end is equipped with protecgulum 2, protecgulum 2 is gapped with the sensor axis front end, and this gap is both as the displaced position of sensor axis, again as overload protection, behind the adjusting play, fixing with 2 tapered pins 9; The rear end of the shell 3 transmitter circuit plate 5 of packing into is by bonnet 7 sealing; Aviation socket 6 is housed, power supply source and sensor signal output on the bonnet.
In the utility model, full electric bridge and one-level amplifying circuit, second amplifying circuit, filtering circuit, electric bridge voltage supply circuit that transmitter circuit is made up of 4 sheet resistance strainometers on the sensor axis connect and compose through circuit.Its circuit is seen shown in Figure 2.Each module of this circuit all can adopt custom circuit.
Principle of work of the present utility model is as follows: sensor is done the time spent being subjected to external force (tension force) F, sensor axis 4 produces displacement, the resistance value R that is attached to the strain ga(u)ge on the diplopore beam change (seeing shown in Figure 3), the resistance of resistor disc Ra, Rd reduces, the resistance of resistor disc Rb, Rc increases, and making originally stably, electric bridge becomes not steadily (Vout=V
1-V
2), amplify through one-level, reach 0-2V, amplify through the second level again, can reach 0-10V, through filtering output, realize detection and control again to tension force.
Characteristics of the present utility model are:
A, resistance change Δ R＜＜R, output voltage and strain are linear.
The polarity of b, Ra, Rd and Rb, Rc is different, and promptly one group is stretching strain, and another group is compressive strain, and output voltage is both sums, utilizes these characteristics can carry out the sensitivity of temperature compensation and raising measurement.
C, sensor axis adopt the diplopore girder construction, and directed force F can change to strainometer, show tension force numerical value, but are cantilever L location independent to front end, and promptly acting force is not subjected to the tension force position influence, can improve accuracy of detection.
Description of drawings
Fig. 1 is a structural diagrams of the present utility model.
Fig. 2 is transmitter circuit figure of the present utility model.
Fig. 3 is a bridge diagram of the present utility model.
Fig. 4 is a sensor axis structural diagrams of the present utility model.
Number in the figure: 1 is installing plate, and 2 is protecgulum, and 3 is shell, and 4 is sensor axis, and 5 is the transmitter circuit plate, and 6 is socket, and 7 is bonnet, and 8 is socket head cap screw, and 9 is taper bolt, and 10 is guide wheel.
Embodiment
Below in conjunction with embodiment and accompanying drawing, further specify the utility model.
According to shown in Figure 4, the length 82mm of sensor axis 4, wherein, the front end that is used to install guide wheel 10 is cylindrical, and length is 20mm, and diameter is 10mm.Rear end length 32mm, diameter is 16mm, which is provided with the connection terminal of resistance strain gage.Center section length is 30mm, and square length of side 8mm, the bore dia of diplopore beam are 6mm, and two holes connect, and the hole wall lateral surface pastes 4 film-type resistor disc strainometers, forms full electric bridge, is connected to thin wire on the connection terminal of rear end.Shell 3 is a cylindrical shape, its size dimension and sensor axis 4 couplings, and be provided with various mounting holes.Protecgulum 2, bonnet 7 and shell 3 front and back ends size match are provided with certain interval between the axle head of the axis hole of protecgulum 2 and sensor axis 4, for the stressed usefulness that is subjected to displacement of sensor axis, and can be used as overload protection, and be behind the adjusting play, fixing with two tapered pins 9.Circuit is arranged on the circuit board 5, is installed on the rear end of sensor axis 4, and with the outer casing back sealing, sensor axis 4 rear ends are fixing with shell 3 with socket head cap screw 8 by bonnet 7.Be provided with installing plate 1 between sensor axis 4 front ends and the guide wheel 10, be used for sensor installation.
In the utility model transmitter circuit, the I district forms equal arm bridge for the resistor disc strainometer, wherein, Ra=Rb=Rc=Rd=R, resistance R 3, R4, R5, W1 are that balance is adjusted circuit (seeing shown in 3), be not subjected to external force to do the time spent, adjust bridge balance, promptly be adjusted into no-voltage output.
II district: be first order amplifier
In the sensor that is lower than 10K Ω, the relevant error of offset voltage is top dog, bipolar input operational amplifier then has low maladjustment voltage and low maladjustment voltage temperature drift, after the local area amplifier amplifies, maximum output voltage can reach 0-2V, as in a use occasion that only needs to measure and show, sensor adopts the one-level amplifier to meet the demands.
III district: second level amplifier
If in the use occasion that tension force is controlled, then should enter the second level and amplify, its output signal voltage is 0-10V.
IV district: filtering circuit
Disturb the filtering circuit that is provided with the output coupling for reducing.
V district: electric bridge voltage supply circuit
Be provided with for improving electric bridge stabilizing and reducing temperature drift.
The output signal of foregoing circuit is: 0-10V or the output of 0-2V voltage, 4-20mA or the output of 0-20mA electric current.
Connection obtains transmitter circuit according to Fig. 2, according to installation shown in Figure 1, obtains required tension pick-up product.
Claims (4)
1, a kind of tension pick-up, it is characterized in that forming by sensor axis, circuit board and shell, the front end of sensor axis (4) is the guide wheel installation shaft, the rear end is the axle stiff end, fastening with shell, center section is the diplopore girder construction, and four sheet resistance strainometers are pasted in the diplopore wall outside respectively, form full electric bridge, and be connected to by lead on the connection terminal of rear end; Sensor outer housing (3) is a tubular structure, in sensor axis (4) and transmission circuit plate (5) are installed on; The front end of sensor axis (4) stretches out shell, is used for installing guide wheel (10), and the shell front end is equipped with protecgulum (2), and protecgulum (2) and sensor axis front end are gapped, and the rear end of shell (3) the transmitter circuit plate (5) of packing into is by bonnet (7) sealing; Aviation socket (6) is housed on the bonnet.
2, tension pick-up according to claim 1 is characterized in that the circuit on the said transmitter circuit plate is connected and composed through circuit successively by full-bridge circuit and one-level amplifying circuit, filtering circuit, the electric bridge voltage supply circuit that 4 resistor disc strainometers on the sensor axis constitute.
3, tension pick-up according to claim 2 is characterized in that being connected to second amplifying circuit between the one-level amplifying circuit of said transmitter circuit and the filtering circuit.
4, tension pick-up according to claim 1 is characterized in that the resistance value of 4 resistor disc strainometers in the said full-bridge circuit equates.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420081249 CN2709964Y (en) | 2004-07-29 | 2004-07-29 | Tension sensor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420081249 CN2709964Y (en) | 2004-07-29 | 2004-07-29 | Tension sensor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2709964Y true CN2709964Y (en) | 2005-07-13 |
Family
ID=34852827
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200420081249 Expired - Fee Related CN2709964Y (en) | 2004-07-29 | 2004-07-29 | Tension sensor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2709964Y (en) |
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100451587C (en) * | 2006-05-25 | 2009-01-14 | 长安大学 | Steel twisted line tension test sensor |
| CN100545600C (en) * | 2008-02-21 | 2009-09-30 | 江苏万工科技集团有限公司 | Weft tension sensor |
| CN101706340A (en) * | 2009-09-23 | 2010-05-12 | 上海贵宝机电有限公司 | Cantilever-type dynamic tension sensor |
| CN101806647A (en) * | 2010-04-15 | 2010-08-18 | 常熟通富电子有限公司 | Intelligent micro-tension sensor |
| CN102116694A (en) * | 2011-01-24 | 2011-07-06 | 罗光寿 | Circuit for testing tensile force of steel wire rope |
| CN102928136A (en) * | 2012-11-06 | 2013-02-13 | 昆山北极光电子科技有限公司 | Oil film bearing borne load measurement and analysis device |
| CN103462694A (en) * | 2013-09-06 | 2013-12-25 | 天津大学 | Force sensing system for multi-degree-of-freedom thread transmission surgical tool |
| CN104236780A (en) * | 2013-08-15 | 2014-12-24 | 绵阳市奇石缘科技有限公司 | Miniature yarn tension measuring sensor |
| CN106525313A (en) * | 2016-12-30 | 2017-03-22 | 安徽中航电子科技发展有限公司 | Through shaft type tension sensor |
| CN111602042A (en) * | 2017-10-20 | 2020-08-28 | 威海森船运公司 | Intelligent cable sensor |
| CN117589347A (en) * | 2023-11-29 | 2024-02-23 | 钛玛科（北京）工业科技有限公司 | Tension sensor capable of detecting different directions |
-
2004
- 2004-07-29 CN CN 200420081249 patent/CN2709964Y/en not_active Expired - Fee Related
Cited By (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100451587C (en) * | 2006-05-25 | 2009-01-14 | 长安大学 | Steel twisted line tension test sensor |
| CN100545600C (en) * | 2008-02-21 | 2009-09-30 | 江苏万工科技集团有限公司 | Weft tension sensor |
| CN101706340A (en) * | 2009-09-23 | 2010-05-12 | 上海贵宝机电有限公司 | Cantilever-type dynamic tension sensor |
| CN101806647B (en) * | 2010-04-15 | 2011-12-14 | 常熟通富电子有限公司 | Intelligent micro-tension sensor |
| CN101806647A (en) * | 2010-04-15 | 2010-08-18 | 常熟通富电子有限公司 | Intelligent micro-tension sensor |
| CN102116694B (en) * | 2011-01-24 | 2012-02-08 | 罗光寿 | Circuit for testing tensile force of steel wire rope |
| CN102116694A (en) * | 2011-01-24 | 2011-07-06 | 罗光寿 | Circuit for testing tensile force of steel wire rope |
| CN102928136A (en) * | 2012-11-06 | 2013-02-13 | 昆山北极光电子科技有限公司 | Oil film bearing borne load measurement and analysis device |
| CN104236780A (en) * | 2013-08-15 | 2014-12-24 | 绵阳市奇石缘科技有限公司 | Miniature yarn tension measuring sensor |
| CN103462694A (en) * | 2013-09-06 | 2013-12-25 | 天津大学 | Force sensing system for multi-degree-of-freedom thread transmission surgical tool |
| CN106525313A (en) * | 2016-12-30 | 2017-03-22 | 安徽中航电子科技发展有限公司 | Through shaft type tension sensor |
| CN111602042A (en) * | 2017-10-20 | 2020-08-28 | 威海森船运公司 | Intelligent cable sensor |
| US11644372B2 (en) | 2017-10-20 | 2023-05-09 | Wilhelmsen Ships Service As | Smart line sensor |
| CN117589347A (en) * | 2023-11-29 | 2024-02-23 | 钛玛科（北京）工业科技有限公司 | Tension sensor capable of detecting different directions |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |