CN205373929U - Resistance strain pressure sensor - Google Patents
Resistance strain pressure sensor Download PDFInfo
- Publication number
- CN205373929U CN205373929U CN201521122107.XU CN201521122107U CN205373929U CN 205373929 U CN205373929 U CN 205373929U CN 201521122107 U CN201521122107 U CN 201521122107U CN 205373929 U CN205373929 U CN 205373929U
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- China
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- resistance strain
- strain gage
- wire
- resistance
- mild steel
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Abstract
Resistance strain pressure sensor, the utility model relates to a pressure sensor, the outer surface paste resistance strain gauge of elasticity sensitive mild steel component (12), wherein a resistance strain gauge (1), the 2nd resistance strain gauge (4), the 3rd resistance strain gauge (9), fourth resistance strain gauge (10) and upper surface (3) the connector contact of measuring the tension face, the 5th resistance strain gauge (15), the 6th resistance strain gauge (18), the 7th resistance strain gauge (20), the 8th resistance strain gauge (21) and lower surface (17) the connector contact of measuring the compression face, every adjacent two of resistance strain gauge are carried out the full -bridge through binding post (24), wire and shielded wire (32) and connect, apron (33), lower apron (25) are installed to the top and the bottom of elasticity sensitive mild steel component (12). Resistance strain pressure sensor can be applied to the axial pressurized in many fields such as reinforced concrete member and metal components and measure.
Description
Technical field
This utility model relates to a kind of pressure transducer, particularly relates to a kind of resistance strain type pressure sensor.
Background technology
Pressure transducer is when concrete component and hardware axial compression, can accurately measure its axial compressive force, principles of electrical measurement is strain signal to be inputted deformeter exported reading strain by deformeter, the strain signal of component must be turned into the signal of telecommunication and could measure by electrical measuring method, and this conversion element is exactly resistance strain gage.It is pasted with the elastic sensitive mild steel element of resistance strain gage when being subject to responsive to axial force, produces displacement and deformation, and thus produce stress and strain.Stress and strain is converted to the change of resistance by resistance strain gage, makes the signal of telecommunication that sensor output is corresponding with axial compressive force, converts electrical signals into corresponding strain value by resistance strain gauge.Determine strain value and axial compressive force corresponding relation that deformeter shows, reach to measure the purpose of axial compressive force.
Existing pressure transducer measures the axial compression such as reinforced concrete member and hardware, measure sensitivity, high measurement accuracy and the characteristic such as reliability and capacity of resisting disturbance and be not as strong, it is applied to the multi-field axial compression measurement data stability such as reinforced concrete member and hardware also poor, also undesirable rapidly.
Summary of the invention
The purpose of this utility model is in that to provide a kind of resistance strain type pressure sensor, this pressure transducer be a kind of when concrete component and hardware axial compression, can accurately measure the resistance strain type pressure sensor of its axial compressive force.During measurement, this sensor is arranged on the top of compression member, directly contacts with the top board of universal testing machine.
The purpose of this utility model is achieved through the following technical solutions:
Resistance strain type pressure sensor, described sensor includes the first resistance strain gage, the second resistance strain gage, the 3rd resistance strain gage, the 4th resistance strain gage, the 5th resistance strain gage, the 6th resistance strain gage, the 7th resistance strain gage, the 8th resistance strain gage, binding post, elastic sensitive mild steel element, upper cover plate, lower cover, the first wire, the second wire, privates, privates, the 5th wire, the 6th wire, the 7th wire, the 8th wire, the 9th wire, the tenth wire, the 11st wire, the 12nd wire, shielded conductor；The outer surface adhering resistance strain sheets of elastic sensitive mild steel element, wherein the first resistance strain gage, the second resistance strain gage, the 3rd resistance strain gage, the 4th resistance strain gage contact with the upper surface measuring tension face, and the 5th resistance strain gage, the 6th resistance strain gage, the 7th resistance strain gage, the 8th resistance strain gage contact with the lower surface measuring compression face；The every adjacent two panels of resistance strain gage carries out full-bridge connection by binding post, wire and shielding line；Cover plate, lower cover are installed in top and the bottom of elastic sensitive mild steel element；Under mild steel element, tetra-wires of A, B, C, D isolated by space wire hole shielded conductor.
Described resistance strain type pressure sensor, the epoxide-resin glue of 2mm thickness is smeared in described paster place and junction.
Described resistance strain type pressure sensor, tetra-wires of described A, B, C, D access static resistance deformeter with the full-bridge mode of connection.
Advantage of the present utility model and effect be:
This utility model resistance strain type pressure sensor has high sensitivity, high measurement accuracy and reliability and the characteristic such as capacity of resisting disturbance is strong, can be applicable to the multi-field axial compression such as reinforced concrete member and hardware and measures.Pressure transducer has that making is simple, data stabilization, the rapid feature of response.
Accompanying drawing explanation
Fig. 1 is this utility model electrical bridge principle figure；
Fig. 2 is resistance strain type pressure sensor schematic diagram；
Fig. 3 mild steel member top surface paster and wiring schematic diagram；
Fig. 4 mild steel element undersurface paster and wiring schematic diagram；
Fig. 5 mild steel element upper cover plate schematic diagram；
Fig. 6 mild steel element lower cover schematic diagram；
Fig. 7 resistance strain type pressure sensor facade generalized section.
Detailed description of the invention
Below in conjunction with embodiment, this utility model is described in detail.
nullThis utility model includes with lower component: the first resistance strain gage 1、Second wire 2、Mild steel member top surface 3、Second resistance strain gage 4、Bolt hole 5、Pressurized cylinder rigid body 6、On second mild steel element、Lower surface linked hole 7、Privates 8、3rd resistance strain gage 9、4th resistance strain gage 10、6th wire 11、Mild steel element 12、On first mild steel element、Lower surface linked hole 13、First wire 14、5th resistance strain gage 15、8th wire 16、Mild steel element undersurface 17、6th resistance strain gage 18、Upper cover plate centre bore 19、7th resistance strain gage 20、8th resistance strain gage 21、11st wire 22、5th wire 23、Binding post 24、Lower cover 25、Privates 26、7th wire 27、9th wire 28、12nd wire 29、Tenth wire 30、Space wire hole 31 under mild steel element、Shielded conductor 32、Upper cover plate 33.
Resistance strain type pressure sensor, such as Fig. 2, by the first resistance strain gage 1, second resistance strain gage 4, 3rd resistance strain gage 9, 4th resistance strain gage 10, 5th resistance strain gage 15, 6th resistance strain gage 18, 7th resistance strain gage 20, 8th resistance strain gage 21, binding post 24, elastic sensitive mild steel element 12, upper cover plate 33, lower cover 25, first wire 14, second wire 2, privates 26, privates 8, 5th wire 23, 6th wire 11, 7th wire 27, 8th wire 16, 9th wire 28, tenth wire 30, 11st wire 22, 12nd wire 29, shielded conductor 32 forms.Outer surface at elastic sensitive mild steel element 12 pastes 8 sheet resistance foil gauges, wherein first resistance strain gage the 1, second resistance strain gage the 4, the 3rd resistance strain gage the 9, the 4th resistance strain gage 10 measures tension face strain, and the 5th resistance strain gage the 15, the 6th resistance strain gage the 18, the 7th resistance strain gage the 20, the 8th resistance strain gage 21 measures compression face strain.The every adjacent two panels of 8 sheet resistance foil gauges carries out full-bridge connection by binding post 24, wire and shielding line 32, and paster place and junction are smeared the epoxide-resin glue of 2mm thickness and carried out insulating and protecting.On the top of elastic sensitive mild steel element 12 with cover plate 33 is installed in bottom, lower cover 25 is protected by.Under mild steel element, tetra-wires of A, B, C, D isolated by space wire hole 31 shielded conductor 32, and tetra-wires of A, B, C, D access the measurement of static resistance deformeter with the full-bridge mode of connection and use.
As shown in Figure 3, paste in the cruciform symmetry position of elastic sensitive mild steel member top surface 3 and fix the first resistance strain gage 1, second resistance strain gage 4, 3rd resistance strain gage 9, the binding post of the 4th resistance strain gage 10 and correspondence, again two lead-out wires of each resistance strain gage are welded on the binding post of correspondence, couple together with 2 the first resistance strain gages 1 of the second wire and the second resistance strain gage 4 and use as resistance R1, another binding post of the first resistance strain gage 1 is connected and by the first mild steel element with the first wire 14, lower surface linked hole 13 is incorporated into lower surface, another binding post of the second resistance strain gage 4 is connected and by the second mild steel element with privates 26, lower surface linked hole 7 is incorporated into lower surface.Couple together with 23 the 3rd resistance strain gages 9 of the 5th wire and the 4th resistance strain gage 10 and use as resistance R3, connect another binding post of the 3rd resistance strain gage 9 with privates 8 and be incorporated into lower surface by the second mild steel element upper and lower surface linked hole 7, connect another binding post of the 4th resistance strain gage 10 with the 6th wire 11 and be incorporated into lower surface by the first mild steel element upper and lower surface linked hole 13.Resistance R1, R3 access electric bridge as the forward foil gauge of tension face, as shown in Figure 1.
Paste in the cruciform symmetry position of elastic sensitive mild steel element undersurface 17 as shown in Figure 4 and fix the 5th resistance strain gage 15, 6th resistance strain gage 18, 7th resistance strain gage 20, the binding post of the 8th resistance strain gage 21 and correspondence, again two lead-out wires of each resistance strain gage are welded on the binding post of correspondence, couple together with 16 the 5th resistance strain gages 15 of the 8th wire and the 6th resistance strain gage 18 and use as resistance R2, another binding post and the shielded conductor 32 of the 5th resistance strain gage 1 is connected with the 7th wire 27, another binding post and the shielded conductor 32 of the 6th resistance strain gage 18 is connected with the 9th wire 28.Couple together with 22 the 7th resistance strain gages 20 of the 11st wire and the 8th resistance strain gage 21 and use as resistance R4, connect another binding post and the shielded conductor 32 of the 7th resistance strain gage 20 with the tenth wire 30, connect another binding post and the shielded conductor 32 of the 8th resistance strain gage 21 with the 12nd wire 29.Resistance R2, R4 access electric bridge as the negative sense foil gauge by face, as shown in Figure 1.
As shown in Figure 4, the 7th wire the 27, the 9th wire the 28, the tenth wire the 30, the 12nd wire 29 drawn in elastic sensitive mild steel element undersurface 17 is by the first wire 14 of first, second mild steel element upper and lower surface linked hole, privates 26, privates the 8, the 6th wire 11 and lower surface is all to be connected in the way of full-bridge on shielded conductor 32.Shielded conductor 32 draws tetra-wires of A, B, C, D through space wire hole 31 under mild steel element.Tetra-wires of A, B, C, D access resistance strain gauge measurement with the full-bridge mode of connection and use.
The epoxide-resin glue smearing 2mm thickness in elastic sensitive mild steel member top surface 3, all paster places of lower surface 17 and junction is fixed, insulate and protects.
As it is shown in fig. 7, mild steel element upper cover plate 33, lower cover 25 bolt 5 are fastened on elastic sensitive mild steel member top surface 3, lower surface 17.Upper and lower cover plates can protect the foil gauge being fastened on elastic sensitive mild steel element upper and lower surface and wire not in use to be destroyed.
Before use, draw wire A, B, C, D by the four of shielding line in the way of full-bridge, access the Measurement channel of resistance strain gauge.Form measuring bridge as shown in figure, reach to access between A, B to access between resistance R1, B, C between resistance R2, C, D, to access the full-bridge wiring effect accessing resistance R4 between resistance R3, D, A.After wiring completes, with universal testing machine, pressurized cylinder rigid body 6 is loaded axial compressive force, realize resistance strain type pressure sensor is loaded, the strain value gathering load at different levels corresponding with resistance strain gauge completes the demarcation to sensor, and the calibration range of load can only carry out in the elastic interval of elastic sensitive mild steel element.After axial compressive force has been demarcated, sensor just can be used for actual measurement.
When measuring use, the first upper surface being pressed component that sensor is arranged on, then A, B, C, D4 root lead-out wire of sensor is connected to the corresponding connection path of deformeter or dynamic collect system, namely install.Apply this pressure transducer and the axial compressive force suffered by component to be measured just can be measured by corresponding dynamic collect system immediately.
Claims (2)
- null1. resistance strain type pressure sensor，It is characterized in that，Described sensor includes the first resistance strain gage (1)、Second resistance strain gage (4)、3rd resistance strain gage (9)、4th resistance strain gage (10)、5th resistance strain gage (15)、6th resistance strain gage (18)、7th resistance strain gage (20)、8th resistance strain gage (21)、Binding post (24)、Elastic sensitive mild steel element (12)、Upper cover plate (33)、Lower cover (25)、First wire (14)、Second wire (2)、Privates (26)、Privates (8)、5th wire (23)、6th wire (11)、7th wire (27)、8th wire (16)、9th wire (28)、Tenth wire (30)、11st wire (22)、12nd wire (29)、Shielded conductor (32)；The outer surface adhering resistance strain sheets of elastic sensitive mild steel element (12), wherein the first resistance strain gage (1), the second resistance strain gage (4), the 3rd resistance strain gage (9), the 4th resistance strain gage (10) contact with the upper surface (3) measuring tension face, and the 5th resistance strain gage (15), the 6th resistance strain gage (18), the 7th resistance strain gage (20), the 8th resistance strain gage (21) contact with the lower surface (17) measuring compression face；The every adjacent two panels of resistance strain gage carries out full-bridge connection by binding post (24), wire and shielding line (32)；Cover plate (33), lower cover (25) are installed in top and the bottom of elastic sensitive mild steel element (12)；Under mild steel element, tetra-wires of A, B, C, D isolated by space wire hole (31) shielded conductor (32).
- 2. resistance strain type pressure sensor according to claim 1, it is characterised in that tetra-wires of described A, B, C, D access static resistance deformeter with the full-bridge mode of connection.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201521122107.XU CN205373929U (en) | 2015-12-31 | 2015-12-31 | Resistance strain pressure sensor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201521122107.XU CN205373929U (en) | 2015-12-31 | 2015-12-31 | Resistance strain pressure sensor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205373929U true CN205373929U (en) | 2016-07-06 |
Family
ID=56256915
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201521122107.XU Expired - Fee Related CN205373929U (en) | 2015-12-31 | 2015-12-31 | Resistance strain pressure sensor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205373929U (en) |
-
2015
- 2015-12-31 CN CN201521122107.XU patent/CN205373929U/en not_active Expired - Fee Related
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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: 20160706 Termination date: 20161231 |
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| CF01 | Termination of patent right due to non-payment of annual fee |