CN202119572U - Attachment type resistance strain transducer - Google Patents
Attachment type resistance strain transducer Download PDFInfo
- Publication number
- CN202119572U CN202119572U CN2011202328031U CN201120232803U CN202119572U CN 202119572 U CN202119572 U CN 202119572U CN 2011202328031 U CN2011202328031 U CN 2011202328031U CN 201120232803 U CN201120232803 U CN 201120232803U CN 202119572 U CN202119572 U CN 202119572U
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- CN
- China
- Prior art keywords
- bridge
- elastic
- elastic bridge
- resistance strain
- measuring
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- 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.)
- Expired - Lifetime
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- Measurement Of Force In General (AREA)
- Force Measurement Appropriate To Specific Purposes (AREA)
- Measurement Of Length, Angles, Or The Like Using Electric Or Magnetic Means (AREA)
Abstract
An attachment type resistance strain transducer is characterized in that six elastic bridges are arranged on an elastic body (2) which is divided into an upper sector, a middle sector and a lower sector along the central axis. The structure of each sector is in bilaterally symmetric distribution. The shapes of left part and the right part of the middle sector are in I shapes. A third elastic bridge (2c) is set at the second stroke position of the left I shape, a fourth elastic bridge (2d) is set at the second stroke position of the right I shape, and resistance strain foils of a full-bridge type measuring electric bridge (3) are respectively arranged on two sides of the third elastic bridge (2c) and two sides of the fourth elastic bridge (2d). Compared with the prior art, the attachment type resistance strain transducer has the advantages that (1) the transducer can be not only used for measuring load value, but also used for measuring and monitoring deflection; (2) under the condition of same measuring points, output value at one time is improved by 20% to 50%, and measuring accuracy is improved simultaneously; and (3) the value range of parameter measurement is enlarged, and the transducer is applicable to the installation under different conditions of the measuring points.
Description
Technical field
The utility model relates to a kind of resistance strain sensor, particularly a kind of adhesion type resistance strain sensor.
Background technology
Resistance strain gauge force transducer generally is used for the metering of power, must be during load in metering with sensor string installed load chain, and bear the full load of being measured.When the sensor accidental damage, can influence the job security of equipment or structure.In addition, can have any problem sensor installed load chain in many cases.
The utility model content
The purpose of the utility model is to provide a kind of adhesion type resistance strain sensor; With sensor attached on the selected position of works outside surface; Adopt the elastic body of a novel structure; When the works stand under load is out of shape, make attached to the lip-deep sensor of works and obtain an initialize signal, this signal obtains electric signal output through secondary instrument, is used for measurement and monitoring to load or amount of deflection parameter.
A kind of adhesion type resistance strain sensor comprises pedestal 1, elastic body 2; Full-bridge type measuring bridge 3; Protective cover 4 is characterized in that: elastic body 2 is provided with six elastic bridges, and elastic body is divided into upper curtate, middle section, lower curtate along the axis; And the structure of each section is left-right symmetric and distributes; Middle section left part and right part shape are I-shaped respectively, and the upper curtate left hand edge is provided with first an elastic bridge 2a who is connected with the middle section left part I-shaped first stroke section start, and the upper curtate right part is provided with second an elastic bridge 2b symmetrical with first elastic bridge; Section left part I-shaped second stroke is the 3rd elastic bridge 2c in the setting; Middle section right part is provided with four an elastic bridge 2d symmetrical with the 3rd elastic bridge, and the lower curtate left part is provided with one and laterally zygomorphic the 5th elastic bridge 2e of first elastic bridge, and the lower curtate right part is provided with six an elastic bridge 2f symmetrical with the 5th elastic bridge; The foil gauge of full-bridge type measuring bridge 3 is arranged in the both sides of the 3rd elastic bridge 2c and the 4th elastic bridge 2d; Arc transition must be adopted in the junction of the two ends of each elastic bridge and elastic body 2.
Be respectively equipped with 2 mounting holes in elastomeric upper and lower, place, the axis of elastic body both ends of the surface has 1 end face screw respectively, adopts bolt to be connected perhaps between elastic body 2 and the pedestal 1 and bonds; Elastomer thickness is 2～20mm, and middle section length is 9～42mm, and upper curtate is identical with lower curtate length; The 3rd elastic bridge 2c and the 4th elastic bridge 2d thickness are 0.8～8mm; Base thickness is 3～30mm, and pedestal length is 50～500mm, and base width is 15～85mm.The transfer chain that works carries its distortion of back is: works → pedestal → elastic body.
With prior art relatively, the utlity model has following advantage: 1) this sensor can also be used for deflection metrology and monitoring except that being used for the load value measurement; 2) under equal measuring point condition, one time output valve improves 20%-50%, improves measuring accuracy simultaneously; 3) enlarged the measured value of parameters scope, the installation for the different measuring points condition simultaneously has better adaptability.
Description of drawings
Fig. 1 is a kind of structural representation of adhesion type resistance strain sensor.
Fig. 2 is elastomeric structural drawing.
Embodiment
Embodiment 1:
A kind of adhesion type resistance strain sensor is used for the overload restriction of the secondary dolly of bridge machine 20t, adopts FWZ-C-20 type instrument, and sensor is installed in the channel-section steel upper surface of supporting fixed pulley axis one end.On pedestal, have breach 1a, pedestal is welded on the works through this breach.The elastic body size: middle section length is 16mm, and the 3rd elastic bridge thickness is 0.8mm, and pedestal length is 70mm, and width is 20mm.
Embodiment 2:
A kind of adhesion type resistance strain sensor is used for the overload restriction that 450t does not have dolly bridge formation machine, adopts FWZ-C-450t type instrument, and sensor is installed in fixed pulley beam middle part upper surface.On pedestal, have breach 1a, pedestal is welded on the works through this breach.The elastic body size: middle section length is 28mm, and the 3rd elastic bridge thickness is 2mm, and pedestal length is 300mm, and width is 70mm.
Embodiment 3:
A kind of adhesion type resistance strain sensor; Be used to not have the overload restriction and the deflection monitoring of dolly bridge formation machine; Adopt FWZ-CII-360t, the two Displaying Meters of 30mm type, the sensor of measuring load is installed in fixed pulley beam middle part upper surface, and the sensor of measuring amount of deflection is installed in crossbeam middle part upper surface.On pedestal, have breach 1a, pedestal is welded on the works through this breach.When being used for deflection metrology, the elastic body size: middle section length is 25mm, and the 3rd elastic bridge thickness is 1mm, and pedestal length is 250mm, and width is 80mm.
Embodiment 4:
A kind of adhesion type resistance strain sensor is used for the overload restriction that 75t does not have dolly bridge formation machine, adopts FWZ-C-75 type instrument, and sensor is installed in fixed pulley beam upper surface middle part.On pedestal, have breach 1a, pedestal is welded on the works through this breach.The elastic body size: middle section length is 20mm, and the 3rd elastic bridge thickness is 1mm, and pedestal length is 170mm, and width is 50mm.
Claims (1)
1. an adhesion type resistance strain sensor comprises pedestal (1), elastic body (2); Full-bridge type measuring bridge (3); Protective cover (4) is characterized in that: elastic body (2) is provided with six elastic bridges, and elastic body is divided into upper curtate, middle section, lower curtate along the axis; And the structure of each section is left-right symmetric and distributes; Middle section left part and right part shape are I-shaped respectively, and the upper curtate left hand edge is provided with first elastic bridge (2a) that is connected with the middle section left part I-shaped first stroke section start, and the upper curtate right part is provided with second elastic bridge (2b) symmetrical with first elastic bridge; Section left part I-shaped second stroke is the 3rd elastic bridge (2c) in the setting; Middle section right part is provided with four elastic bridge (2d) symmetrical with the 3rd elastic bridge, and the lower curtate left part is provided with one and laterally zygomorphic the 5th elastic bridge of first elastic bridge (2e), and the lower curtate right part is provided with six elastic bridge (2f) symmetrical with the 5th elastic bridge; The foil gauge of full-bridge type measuring bridge (3) is arranged in the both sides of the 3rd elastic bridge (2c) and the 4th elastic bridge (2d); Arc transition must be adopted in the junction of the two ends of each elastic bridge and elastic body (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011202328031U CN202119572U (en) | 2011-07-04 | 2011-07-04 | Attachment type resistance strain transducer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011202328031U CN202119572U (en) | 2011-07-04 | 2011-07-04 | Attachment type resistance strain transducer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202119572U true CN202119572U (en) | 2012-01-18 |
Family
ID=45460628
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011202328031U Expired - Lifetime CN202119572U (en) | 2011-07-04 | 2011-07-04 | Attachment type resistance strain transducer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202119572U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102269634A (en) * | 2011-07-04 | 2011-12-07 | 胡天旭 | Attached resistance strain transducer |
| WO2018095435A1 (en) * | 2016-11-28 | 2018-05-31 | 梅特勒-托利多(常州)精密仪器有限公司 | Force sensor |
-
2011
- 2011-07-04 CN CN2011202328031U patent/CN202119572U/en not_active Expired - Lifetime
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102269634A (en) * | 2011-07-04 | 2011-12-07 | 胡天旭 | Attached resistance strain transducer |
| CN102269634B (en) * | 2011-07-04 | 2012-10-03 | 胡天旭 | Attached resistance strain transducer |
| WO2018095435A1 (en) * | 2016-11-28 | 2018-05-31 | 梅特勒-托利多(常州)精密仪器有限公司 | Force sensor |
| US11022506B2 (en) | 2016-11-28 | 2021-06-01 | Mettler-Toledo (Changzhou) Precision Instrument Ltd. | Force sensor with strain gauge attached to flexible wall of a main beam of the force sensor |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20120118 Effective date of abandoning: 20121003 |