CN208476457U - Force snesor with automatic calibration function - Google Patents
Force snesor with automatic calibration function Download PDFInfo
- Publication number
- CN208476457U CN208476457U CN201820252207.1U CN201820252207U CN208476457U CN 208476457 U CN208476457 U CN 208476457U CN 201820252207 U CN201820252207 U CN 201820252207U CN 208476457 U CN208476457 U CN 208476457U
- Authority
- CN
- China
- Prior art keywords
- calibration
- force snesor
- circuit
- converter
- switch
- 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
Landscapes
- Force Measurement Appropriate To Specific Purposes (AREA)
Abstract
The utility model discloses the force snesor with automatic calibration function, including elastomer, sensing element and measuring circuit, the elastomer is equipped with sensing element, and sensing element is connect with measuring circuit；The force snesor with automatic calibration function further includes the calibration circuit equipped with calibration switch, and the calibration switch and ground are connected, so that calibration circuit evolving calibration signal, the calibration signal feedback is into measuring circuit.The utility model calibration switch be connected to by way of, the calibration signal for calibrating circuit evolving is fed back into measuring circuit, entire calibration process does not need additional external load equipment, and calibration process is automatically performed by the system of force snesor, a large amount of time and human cost are saved, the calibration accuracy of force snesor is improved.
Description
Technical field
The utility model relates to measuring device fields, more particularly to the force snesor with automatic calibration function.
Background technique
Force snesor is widely used in carrying space system, manned space engineering system, remote sensing survey, environmental monitoring, doctor
The industries such as instrument and weaponry are treated, reliability directly affects the performance of measuring device.In order to guarantee that every power of production passes
Sensor can accurately transmit information, it is necessary to calibrate to force snesor.
Currently, the calibration majority of force snesor is adopted manually, and require the mass block using known quality
Or the device of rated pressure can be generated and calibrated, calibration process is complicated, and for the case where there are other factor interference
Lower needs are repeatedly calibrated, and the dismounting that also needs to stop work when necessary is to be calibrated, therefore the prior art is calibrated in force snesor
Field on there are many restrictions.
Utility model content
Technical problem to be solved by the utility model is: the utility model provides there is the power of automatic calibration function to sense
Device can calibrate force snesor in the case where no external load equipment by simple mode.
The solution that the utility model solves its technical problem is: the force snesor with automatic calibration function, including
Elastomer, sensing element and measuring circuit, the elastomer are equipped with sensing element, and sensing element is connect with measuring circuit；Institute
Stating the force snesor with automatic calibration function further includes the calibration circuit equipped with calibration switch, the calibration switch with connect
Logical, so that calibration circuit evolving calibration signal, the calibration signal feedback is into measuring circuit.
As a further improvement of the above technical scheme, the measuring circuit includes AD converter, D/A converter and calculating
Module, the AD converter are connect with computing module, and computing module is connect with D/A converter.
Further improvement as above-mentioned technical proposal also connects on the route that the AD converter is connect with computing module
It is connected to reset switch.
As a further improvement of the above technical scheme, the calibration circuit includes calibration module and storage module, described
Calibration module generates calibration signal, and the calibration signal is stored in storage module.
Further improvement as above-mentioned technical proposal, the calibration switch are located on calibration module.
The beneficial effects of the utility model are: the utility model is in such a way that calibration switch and ground are connected, calibration is electric
The calibration signal that road generates is fed back into measuring circuit, and entire calibration process does not need additional external load equipment, and school
Quasi- process is automatically performed by the system of force snesor, saves a large amount of time and human cost, improves the school of force snesor
Quasi- precision.
Detailed description of the invention
It, below will be to required in embodiment description in order to illustrate more clearly of the technical scheme in the embodiment of the utility model
Attached drawing to be used is briefly described.Obviously, described attached drawing is a part of the embodiment of the utility model, rather than complete
Portion's embodiment, those skilled in the art without creative efforts, can also be obtained according to these attached drawings it
His design scheme and attached drawing.
Fig. 1 is the line frame graph of the utility model embodiment a1.
Specific embodiment
It is carried out below with reference to technical effect of the embodiment and attached drawing to the design of the utility model, specific structure and generation
It clearly and completely describes, to be completely understood by the purpose of this utility model, feature and effect.Obviously, described embodiment
It is a part of the embodiment of the utility model, rather than whole embodiments, it is based on the embodiments of the present invention, the skill of this field
Art personnel other embodiments obtained without creative efforts belong to the model of the utility model protection
It encloses.In addition, all connection/connection relationships being previously mentioned in text, not singly refer to that component directly connects, and referring to can be according to specific reality
Situation is applied, by adding or reducing couple auxiliary, to form more preferably coupling structure.Each technology in the invention is special
Sign, can be with combination of interactions under the premise of not conflicting conflict.Finally, it should be noted that as text in term " center ",
The orientation or positional relationship of the instructions such as "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outside" is then based on attached drawing
Shown in orientation or positional relationship, be merely for convenience of describing the present invention and simplifying the description, rather than indication or suggestion institute
The device or element of finger must have a particular orientation, be constructed and operated in a specific orientation, therefore should not be understood as to this reality
With novel limitation.In addition, being used for description purposes only if term " first ", " second ", " third " in text, and should not be understood as
Indication or suggestion relative importance.
Referring to Fig.1, this is the embodiments of the present invention a1, specifically:
Force snesor with automatic calibration function, including elastomer 1, sensing element and measuring circuit 3, the sensitive member
Part is attached on the internal chamber wall of elastomer, and the elastomer is preferably closed by flexible dedicated high-quality steel or flexible aluminium
Gold is constituted, and sensing element used in the utility model is preferably four pieces of resistance strain gages 2, four pieces of resistance strain gage wiring
Bridge 21 is measured at wheatstone, the measuring circuit includes AD converter 31, D/A converter 33 and computing module 32, the wheatstone
Measurement bridge is connect with AD converter, and AD converter is connect with computing module, and computing module is connect with D/A converter.It is described to have certainly
The force snesor of dynamic calibration function further includes calibration circuit 4, and calibration circuit includes calibration module 41 and storage module 42, the school
Quasi-mode block is equipped with calibration switch 43, and calibration switch and ground are connected, so that calibration module generates calibration signal, the calibration signal
It is stored in storage module, subsequent storage module feeds back calibration signal into computing module.
The calibration process of the utility model:
1, in the state that force snesor is in unloaded, calibration switch is connected, makes to calibrate circuit ground；
2, the no-load current size before calibration module record ground connection on calibration circuit, the no-load current size are denoted as x；
3, it due to calibrating circuit ground, calibrates the voltage on circuit and is close to 0, calibrate circuit after calibration module record ground connection
On full journey size of current, the full journey size of current is denoted as y；
4, calibration module passes through formulaCalibration parameter is generated, wherein m is the range value of force snesor, and k is
The calibration parameter of force snesor；
5, the signal with calibration parameter of generation is stored in storage module by calibration module, and subsequent storage module is by band
There is the signal of calibration parameter to feed back into computing module and rewrite original calculating parameter in computing module.
Using above-mentioned structure, the utility model has the beneficial effects that the utility model by calibration switch be connected to
Mode feeds back the calibration signal for calibrating circuit evolving into measuring circuit, and it is negative that entire calibration process does not need additional outside
Equipment is carried, and calibration process is automatically performed by the system of force snesor, is saved a large amount of time and human cost, is improved
The calibration accuracy of force snesor.
In order to facilitate the use of the utility model, one end of the D/A converter is also connected with display device 5, the display
Device can intuitively reflect the size of force sensor institute dynamometry.
In order to improve the accuracy of force snesor, it is also connected on the route that the AD converter is connect with computing module clear
Zero switch 34, the reset switch can reset force snesor in the numerical value of last registration.
The utility model is worked normally in the case where disconnecting calibration switch, and the utility model is working normally shape
The course of work under state: pressing reset switch first, and the numerical value by force snesor in last registration is reset, subsequent external loading power
It acts on the elastomer of force snesor, the resistance of resistance strain gage is caused to change, the change of resistance causes wheatstone to be surveyed
Perhaps the change electric current of voltage or the change value of voltage are transferred in AD converter electric current on amount bridge, and AD converter will change
The analog signal of value is converted into the digital signal of change value, and the digital data transmission of the change value is into computing module and passes through
The digital signal that calculating parameter calculates power output is crossed, the digital data transmission of the power is into D/A converter, and D/A converter is by power
The analog signal of digital signal converting to force, for the analog signal transmission of power into display device, display device can be intuitively anti-
Mirror the size of external loading power.
The better embodiment of the utility model is illustrated above, but the invention be not limited to it is described
Embodiment, those skilled in the art can also make various equivalent changes without departing from the spirit of the present invention
Type or replacement, these equivalent variation or replacement are all included in the scope defined by the claims of the present application.
Claims (5)
1. having the force snesor of automatic calibration function, including elastomer, sensing element and measuring circuit, set on the elastomer
There is sensing element, sensing element is connect with measuring circuit, it is characterised in that: further include the calibration circuit equipped with calibration switch, institute
It states calibration switch and ground is connected, so that calibration circuit evolving calibration signal, the calibration signal feedback is into measuring circuit.
2. the force snesor according to claim 1 with automatic calibration function, it is characterised in that: the measuring circuit packet
AD converter, D/A converter and computing module are included, the AD converter is connect with computing module, and computing module and D/A converter connect
It connects.
3. the force snesor according to claim 2 with automatic calibration function, it is characterised in that: the AD converter with
Reset switch is also connected on the route of computing module connection.
4. the force snesor according to claim 1 with automatic calibration function, it is characterised in that: the calibration circuit packet
Calibration module and storage module are included, the calibration module generates calibration signal, and the calibration signal is stored in storage module.
5. the force snesor according to claim 4 with automatic calibration function, it is characterised in that: the calibration switch is set
On calibration module.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820252207.1U CN208476457U (en) | 2018-02-11 | 2018-02-11 | Force snesor with automatic calibration function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820252207.1U CN208476457U (en) | 2018-02-11 | 2018-02-11 | Force snesor with automatic calibration function |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208476457U true CN208476457U (en) | 2019-02-05 |
Family
ID=65205784
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820252207.1U Active CN208476457U (en) | 2018-02-11 | 2018-02-11 | Force snesor with automatic calibration function |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208476457U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112284613A (en) * | 2020-10-27 | 2021-01-29 | 深圳市鑫精诚科技有限公司 | Calibration method of force sensor |
-
2018
- 2018-02-11 CN CN201820252207.1U patent/CN208476457U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112284613A (en) * | 2020-10-27 | 2021-01-29 | 深圳市鑫精诚科技有限公司 | Calibration method of force sensor |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101936791B (en) | Digital pressure gauge | |
| CN201653608U (en) | High-intelligent resistance strain gage sensor | |
| CN105306056A (en) | Scale factor temperature compensating method of current frequency conversion circuit | |
| CN103438968A (en) | Double-range electronic car scale | |
| CN109489789A (en) | A kind of scale and method of measurable quadrangle weight value | |
| CN208476457U (en) | Force snesor with automatic calibration function | |
| CN103542962A (en) | Pressure testing device | |
| CN101644612A (en) | Programmable pressure sensor | |
| CN203203693U (en) | A high-precision electronic scale | |
| CN102023270A (en) | Intelligent power network parameter sensor | |
| CN203534694U (en) | Remote-control digital weighing machine with temperature compensation function | |
| CN203053529U (en) | Weighting device | |
| CN110207794A (en) | Electronic scale weighing system based on independent weighing unit | |
| US20210072044A1 (en) | Output system and gauge | |
| US7891250B2 (en) | Method and apparatus to digitize pressure gauge information | |
| CN103234617A (en) | Remote-control digital weighing machine with temperature compensation function and temperature compensation method for remote-control digital weighing machine | |
| US10215617B2 (en) | Analog sensor with digital compensation function | |
| CN213688470U (en) | Novel temperature and humidity sensor | |
| CN104359533A (en) | Mini jewelry electronic scale | |
| CN204924517U (en) | Portable electronic dynamometer | |
| CN210108488U (en) | High-precision cambered surface type resistance wire sensor device with enhanced signal | |
| CN201355291Y (en) | Digital display type pressure transmitter with two-way switching value output | |
| CN206670832U (en) | A kind of device for lifting temperature survey precision | |
| JP2540147Y2 (en) | Sensor correction device | |
| CN208383352U (en) | A kind of pressure sensor device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP03 | Change of name, title or address | ||
| CP03 | Change of name, title or address |
Address after: 528216 floor 8, building a, No. 28, Dongyang Third Road, Danzao Town, Nanhai District, Foshan City, Guangdong Province (residence declaration) Patentee after: Guangdong kangshibai Technology Co.,Ltd. Address before: 518000 Shenzhen, Guangdong, Nanshan District Xili street, Zhongshan Garden Road 1001, TCL international E city F1 building 100210031004 room. Patentee before: SHENZHEN COSBER INDUSTRIAL Co.,Ltd. |