CN204101238U - A kind of loading spectrum collection strain measurement device - Google Patents
A kind of loading spectrum collection strain measurement device Download PDFInfo
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- CN204101238U CN204101238U CN201420506669.3U CN201420506669U CN204101238U CN 204101238 U CN204101238 U CN 204101238U CN 201420506669 U CN201420506669 U CN 201420506669U CN 204101238 U CN204101238 U CN 204101238U
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Abstract
The utility model provides a kind of loading spectrum collection strain measurement device, comprise: terminal box, the full-bridge strain testing circuit be fixed in terminal box, be fixed on the side of terminal box for connecting the LEMO socket of foil gauge or sensor male and being fixed on six banana bins for measuring the resistance value between each stitch of terminal box end face, six banana bins comprise: input voltage positive pole port, input voltage negative pole port, signal positive pole port, signal negative pole port, monitoring sampling voltage positive pole port and monitoring sampling voltage negative pole port.Measure the resistance value between any two ends mouth by multimeter, the reliability of foil gauge and signal cable thereof can be detected.The utility model device is simple, operates easy, is difficult to the problem detected after efficiently solving foil gauge seal glass glue.
Description
Technical field
The utility model relates to loading spectrum acquisition test field, particularly relates to a kind of loading spectrum collection strain measurement device.
Background technology
In loading spectrum acquisition test, need to use a lot of foil gauge and strain gauge transducer.In foil gauge placement process, need the reliability checking foil gauge extremely signal cable with multimeter, also intuitively can see the state of foil gauge and cable.But when foil gauge arranges, and after seal glass glue, foil gauge cable welds with LEMO head, directly cannot measure with multimeter, and foil gauge itself, also by silica gel sealing, cannot directly be observed, if now test goes wrong, checking can be very difficult.
Utility model content
In order to be difficult to the problem detected after overcoming foil gauge seal glass glue, the utility model provides a kind of loading spectrum collection strain measurement device, is convenient to the foil gauge after to seal glass glue and detects.
According to an aspect of the present utility model, provide a kind of loading spectrum collection strain measurement device, comprise: terminal box, be fixed on the full-bridge strain testing circuit in terminal box, be fixed on terminal box side for connecting the LEMO socket of foil gauge or sensor male and being fixed on six banana bins for measuring resistance value between each stitch of terminal box end face, wherein six banana bins comprise: input voltage positive pole port, input voltage negative pole port, signal positive pole port, signal negative pole port, monitoring sampling voltage positive pole port and monitoring sampling voltage negative pole port, full-bridge strain testing circuit comprises: rectifier bridge, first operational amplifier, second operational amplifier and the 3rd operational amplifier, wherein the first terminals of rectifier bridge are connected with an input port of the first operational amplifier by monitoring sampling voltage positive pole port, another input port of first operational amplifier is connected with the second opamp input terminal mouth, the output port of the first operational amplifier is connected with the first terminals by input voltage positive pole port, second terminals of rectifier bridge are connected with an input port of the 3rd operational amplifier by signal negative pole port, 3rd terminals of rectifier bridge are connected with another input port of the second operational amplifier by monitoring sampling voltage negative pole port, the output port of the second operational amplifier is connected with the 3rd terminals by input voltage negative pole port, 4th terminals of rectifier bridge are connected with another input port of the 3rd operational amplifier by signal positive pole port.
In above-mentioned loading spectrum collection strain measurement device, optionally, input voltage positive pole port is provided with red mark, input voltage negative pole port is provided with the mark of black, signal positive pole port is provided with red mark, signal negative pole port is provided with blue mark, monitoring sampling voltage positive pole port is arranged on viridescent mark and monitoring sampling voltage negative pole port and be provided with yellow mark.
In above-mentioned loading spectrum collection strain measurement device, optionally, terminal box is waterproof junction box.
The beneficial effects of the utility model are: by adopting multimeter to insert in banana bin the resistance situation that can detect between different cable, and measurement result and theoretical value being compared, can judge whether foil gauge or connection cable have damage accordingly.The utility model device is simple, operates easy, is difficult to the problem detected after efficiently solving foil gauge seal glass glue.
Optionally, banana bin adopts different colors to identify, and can judge fast and accurately the port representated by each banana bin.
Accompanying drawing explanation
Fig. 1 represents the utility model embodiment full-bridge strain testing wiring diagram;
Fig. 2 represents the utility model embodiment strain measurement schematic diagram;
Fig. 3 represents the utility model embodiment loading spectrum collection strain measurement device schematic diagram.
Wherein in figure: 1, input voltage positive pole port; 2, sampling voltage positive pole port is monitored; 3, signal positive pole port; 4, signal negative pole port; 5, sampling voltage negative pole port is monitored; 6, input voltage negative pole port; 7, rectifier bridge; 8, the first operational amplifier; 9, the second operational amplifier; 10, the 3rd operational amplifier; 11, the first terminals; 12, the second terminals; 13, the 3rd terminals; 14, the 4th terminals; 15, LEMO joint.
Embodiment
Below with reference to accompanying drawings exemplary embodiment of the present disclosure is described in more detail.Although show exemplary embodiment of the present disclosure in accompanying drawing, however should be appreciated that can realize the disclosure in a variety of manners and not should limit by the embodiment set forth here.On the contrary, provide these embodiments to be in order to more thoroughly the disclosure can be understood, and complete for the scope of the present disclosure can be conveyed to those skilled in the art.
Be the utility model embodiment full-bridge strain testing wiring diagram see Fig. 1, loading spectrum collection strain measurement device, comprise: terminal box, be fixed on the full-bridge strain testing circuit in terminal box, be fixed on terminal box side for connecting the LEMO socket of foil gauge or sensor male and being fixed on six banana bins for measuring the resistance value between each stitch of terminal box end face, wherein six banana bins comprise: input voltage positive pole port one, input voltage negative pole port 6, signal positive pole port 3, signal negative pole port 4, monitoring sampling voltage positive pole port 2 and monitoring sampling voltage negative pole port 5, full-bridge strain testing circuit comprises: rectifier bridge 7, first operational amplifier 8, second operational amplifier 9 and the 3rd operational amplifier 10, wherein the first terminals 11 of rectifier bridge 7 are connected with an input port of the first operational amplifier 8 by monitoring sampling voltage positive pole port 2, another input port of first operational amplifier 8 is connected with an input port of the second operational amplifier 9, the output port of the first operational amplifier 8 is connected with the first terminals 11 by input voltage positive pole port one, second terminals 12 of rectifier bridge 7 are connected with an input port of the 3rd operational amplifier 10 by signal negative pole port 4,3rd terminals 13 of rectifier bridge 7 are connected with another input port of the second operational amplifier 9 by monitoring sampling voltage negative pole port 5, the output port of the second operational amplifier 9 is connected with the 3rd terminals 13 by input voltage negative pole port 6,4th terminals 14 of rectifier bridge 7 are connected with another input port of the 3rd operational amplifier 10 by signal positive pole port 3.
Concrete, see Fig. 2, by adopting multimeter to insert in banana bin the resistance situation that can detect between different cable, and measurement result and theoretical value being compared, can judge whether foil gauge or connection cable have damage accordingly.The utility model device is simple, operates easy, is difficult to the problem detected after efficiently solving foil gauge seal glass glue.
See Fig. 3, it is the utility model embodiment loading spectrum collection strain measurement device schematic diagram.Input voltage positive pole port one is provided with red mark, input voltage negative pole port 6 is provided with the mark of black, signal positive pole port 3 is provided with red mark, signal negative pole port 4 is provided with blue mark, monitoring sampling voltage positive pole port 2 is arranged on viridescent mark and monitoring sampling voltage negative pole port 5 and be provided with yellow mark.Banana bin adopts different colors to identify, and can judge fast and accurately the port representated by each banana bin.
Above-described is preferred implementation of the present utility model; should be understood that the ordinary person for the art; can also make some improvements and modifications not departing under principle prerequisite described in the utility model, these improvements and modifications are also in protection domain of the present utility model.
Claims (3)
1. a loading spectrum collection strain measurement device, it is characterized in that, comprise: terminal box, the full-bridge strain testing circuit be fixed in terminal box, be fixed on the side of terminal box for connecting the LEMO socket of foil gauge or sensor male and being fixed on six banana bins for measuring the resistance value between each stitch of terminal box end face, wherein
Described six banana bins comprise: input voltage positive pole port, input voltage negative pole port, signal positive pole port, signal negative pole port, monitoring sampling voltage positive pole port and monitoring sampling voltage negative pole port; described full-bridge strain testing circuit comprises: rectifier bridge, first operational amplifier, second operational amplifier and the 3rd operational amplifier, first terminals of wherein said rectifier bridge are connected with an input port of described first operational amplifier by described monitoring sampling voltage positive pole port, another input port of described first operational amplifier is connected with an input port of described second operational amplifier, the output port of described first operational amplifier is connected with described first terminals by described input voltage positive pole port, second terminals of described rectifier bridge are connected with an input port of described 3rd operational amplifier by described signal negative pole port, 3rd terminals of described rectifier bridge are connected with another input port of described second operational amplifier by described monitoring sampling voltage negative pole port, the output port of described second operational amplifier is connected with described 3rd terminals by described input voltage negative pole port, 4th terminals of described rectifier bridge are connected with another input port of described 3rd operational amplifier by described signal positive pole port.
2. loading spectrum collection strain measurement device as claimed in claim 1, it is characterized in that, described input voltage positive pole port is provided with red mark, described input voltage negative pole port is provided with the mark of black, described signal positive pole port is provided with red mark, described signal negative pole port is provided with blue mark, described monitoring sampling voltage positive pole port is arranged on viridescent mark and described monitoring sampling voltage negative pole port and be provided with yellow mark.
3. loading spectrum collection strain measurement device as claimed in claim 1, it is characterized in that, described terminal box is waterproof junction box.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420506669.3U CN204101238U (en) | 2014-09-03 | 2014-09-03 | A kind of loading spectrum collection strain measurement device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420506669.3U CN204101238U (en) | 2014-09-03 | 2014-09-03 | A kind of loading spectrum collection strain measurement device |
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| CN204101238U true CN204101238U (en) | 2015-01-14 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201420506669.3U Active CN204101238U (en) | 2014-09-03 | 2014-09-03 | A kind of loading spectrum collection strain measurement device |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105444948A (en) * | 2015-12-31 | 2016-03-30 | 陕西理工学院 | Large-array resistor-type strain gage automatic detection and shaping device and method |
| CN105509961A (en) * | 2015-12-31 | 2016-04-20 | 陕西理工学院 | Automatic detecting device and method for large-array resistance strain gauge |
| CN110057494A (en) * | 2019-05-05 | 2019-07-26 | 大连理工大学 | A kind of sensor Speediness link line and fault finding system towards electrical measuring method |
-
2014
- 2014-09-03 CN CN201420506669.3U patent/CN204101238U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105444948A (en) * | 2015-12-31 | 2016-03-30 | 陕西理工学院 | Large-array resistor-type strain gage automatic detection and shaping device and method |
| CN105509961A (en) * | 2015-12-31 | 2016-04-20 | 陕西理工学院 | Automatic detecting device and method for large-array resistance strain gauge |
| CN105509961B (en) * | 2015-12-31 | 2017-03-22 | 陕西理工学院 | Automatic detecting device and method for large-array resistance strain gauge |
| CN110057494A (en) * | 2019-05-05 | 2019-07-26 | 大连理工大学 | A kind of sensor Speediness link line and fault finding system towards electrical measuring method |
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