CN201503293U - Resistance strain sensor for target flowmeter and pontoon liquid level meter - Google Patents
Resistance strain sensor for target flowmeter and pontoon liquid level meter Download PDFInfo
- Publication number
- CN201503293U CN201503293U CN2009202030932U CN200920203093U CN201503293U CN 201503293 U CN201503293 U CN 201503293U CN 2009202030932 U CN2009202030932 U CN 2009202030932U CN 200920203093 U CN200920203093 U CN 200920203093U CN 201503293 U CN201503293 U CN 201503293U
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- CN
- China
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- elastic cylinder
- resistance strain
- strain sensor
- liquid level
- level meter
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Abstract
The utility model relates to a resistance strain sensor for a target flowmeter and a pontoon liquid level meter. The resistance strain sensor comprises an elastic cylinder body, a resistance strain gauge fixedly bonded with the outer surface of the elastic cylinder body, and a force bearing bar. The resistance strain sensor is characterized in that the elastic cylinder body (1) is an inner cylinder with a regular hexagonal outer surface; and the high-temperature resistance strain gauge (2) is welded on the regular hexagonal plat surface of the elastic cylinder body (1). The resistance strain sensor has the advantages of convenient manufacture and low cost, and can be used for the target flowmeter and the pontoon liquid level meter in the high-temperature occasion above 260 DEG C to greatly reduce the manufacture cost of the target flowmeter and the pontoon liquid level meter.
Description
Technical field
The utility model relates to strain transducer, especially for the strain transducer of target type meter, float level meter.
Background technology
Resistance strain sensor is that the employing resistance strain gage is the stress or the strain gauge sensors of measuring sensor, can be used in the multiple instrument and meter for automation, as is applied in target type meter, the float level meter.It is at elastic cylinder surface secure bond resistance strain gage, in elastic cylinder, placed force rod, one end of force rod is fixedlyed connected with the welding of an end of elastic cylinder, force rod other end elasticity of extension cylindrical shell outer end suspends and accepts acting force, thereby drive the stressed generation deflection of elastic cylinder, resistance strain gage is responded to.For reaching and improving sensitivity, the elastic cylinder wall thickness requires thin as far as possible, and be full of actuating medium in the elastic cylinder when using, elastic cylinder need bear the static pressure of fluid media (medium), in order to overcome the static pressure drift that fluid medium pressure causes, elastic cylinder itself generally all is to be designed to cylinder barrel shaped.In addition because measure to change be very small, for the diameter of the sensitivity elastic cylinder that improves sensor also requires as far as possible little.
Prior art actuating medium temperature is below 260 ℃ the time, resistance strain gage and elastic cylinder wall can adopt bonding method to fix, and working temperature is more than 260 ℃ the time, and resistance strain gage and elastic cylinder wall bonding method are infeasible, promptly can not guarantee firm connection, sensitivity and normal the use.So can only use the strain transducer of alternate manner instead at high temperature occasion target type meter and float level meter, as adopting capacitance type sensor, it is very high that its production adds cost.
The utility model content
The purpose of this utility model provides a kind of target type meter of high temperature occasion use more than 260 ℃ and resistance strain sensor that float level meter uses of can be used for.
The utility model includes elastic cylinder, the resistance strain gage of secure bond on the elastic cylinder outside surface, force rod constitutes, force rod is set in the elastic cylinder, one end of force rod is fixedlyed connected with the welding of an end of elastic cylinder, the outer connection with force-summing element of the other end elasticity of extension cylindrical shell of force rod accepted acting force, it is characterized in that elastic cylinder 1 is orthohexagonal inner cylinder for appearance, high temperature resistance foil gauge 3 (its substrate is the sheet metal of hard) is welded on the regular hexagon plane of elastic cylinder 1 appearance.
The utility model is easily manufactured, cost is low, the high temperature resistance foil gauge is the plane and is connected with elastic body, fully guarantee high temperature resistance foil gauge strain sensitivity, and assurance high temperature resistance foil gauge and elastic cylinder stable bond and serviceable life, be implemented in more than 260 ℃ the high temperature occasion and resistance strain sensor be applied on target type meter and the float level meter use, the manufacturing that reduces target type meter and float level meter greatly originally becomes.
Description of drawings
Fig. 1,2, the 3rd, the utility model example structure synoptic diagram, wherein Fig. 2 is the A-A cut-open view of Fig. 1, Fig. 3 is the B-B cut-open view of Fig. 2.
Embodiment
The resistance strain sensor that the utility model target type meter and float level meter use includes elastic cylinder, the resistance strain gage of secure bond on the elastic cylinder outside surface, force rod constitutes, force rod is set in the elastic cylinder, one end of force rod is fixedlyed connected with the welding of an end of elastic cylinder, the other end elasticity of extension cylindrical shell of force rod is outer to be connected with force-summing element, it is characterized in that elastic cylinder 1 is orthohexagonal inner cylinder for appearance, the orthohexagonal hem width of elastic cylinder 1 appearance is slightly larger than the width of high temperature resistance foil gauge 2, and high temperature resistance foil gauge 2 is welded on the orthohexagonal plane of elastic cylinder 1 appearance.High temperature resistance foil gauge 2 is by on two or four planes, regular hexagon limit that are symmetrically welded at elastic cylinder 1 appearance.
Claims (2)
1. target type meter, the used for buoy liquid level gauge resistance strain sensor, include elastic cylinder, the resistance strain gage of secure bond on the elastic cylinder outside surface, force rod constitutes, force rod is set in the elastic cylinder, one end of force rod is fixedlyed connected with the welding of an end of elastic cylinder, the other end elasticity of extension cylindrical shell of force rod is outer to be connected with force-summing element, it is characterized in that elastic cylinder (1) is orthohexagonal inner cylinder for appearance, the orthohexagonal hem width of elastic cylinder (1) appearance is slightly larger than the width of high temperature resistance foil gauge (2), and high temperature resistance foil gauge (2) is welded on the orthohexagonal plane of elastic cylinder (1) appearance.
2. target type meter according to claim 1, used for buoy liquid level gauge resistance strain sensor is characterized in that high temperature resistance foil gauge (2) is by on two or four planes, regular hexagon limit that are symmetrically welded at elastic cylinder (1) appearance.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202030932U CN201503293U (en) | 2009-09-04 | 2009-09-04 | Resistance strain sensor for target flowmeter and pontoon liquid level meter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202030932U CN201503293U (en) | 2009-09-04 | 2009-09-04 | Resistance strain sensor for target flowmeter and pontoon liquid level meter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201503293U true CN201503293U (en) | 2010-06-09 |
Family
ID=42454225
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009202030932U Expired - Fee Related CN201503293U (en) | 2009-09-04 | 2009-09-04 | Resistance strain sensor for target flowmeter and pontoon liquid level meter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201503293U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103528724A (en) * | 2013-10-27 | 2014-01-22 | 蚌埠日月仪器研究所有限公司 | Integrated axial force and torque sensor for polished rods of rod-pumped well |
| CN108896366A (en) * | 2018-07-09 | 2018-11-27 | 西安建筑科技大学 | The loess sample preparation device and method for making sample of pore water chemical concentrations are determined in preparation |
| CN109798943A (en) * | 2019-03-01 | 2019-05-24 | 孙良荣 | A kind of water meter or flowmeter structure based on resistance strain type sensor |
-
2009
- 2009-09-04 CN CN2009202030932U patent/CN201503293U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103528724A (en) * | 2013-10-27 | 2014-01-22 | 蚌埠日月仪器研究所有限公司 | Integrated axial force and torque sensor for polished rods of rod-pumped well |
| CN108896366A (en) * | 2018-07-09 | 2018-11-27 | 西安建筑科技大学 | The loess sample preparation device and method for making sample of pore water chemical concentrations are determined in preparation |
| CN109798943A (en) * | 2019-03-01 | 2019-05-24 | 孙良荣 | A kind of water meter or flowmeter structure based on resistance strain type sensor |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20100609 Termination date: 20140904 |
|
| EXPY | Termination of patent right or utility model |