CN214473891U - On-spot installation timing device of current vortex sensor - Google Patents
On-spot installation timing device of current vortex sensor Download PDFInfo
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- CN214473891U CN214473891U CN202120415508.3U CN202120415508U CN214473891U CN 214473891 U CN214473891 U CN 214473891U CN 202120415508 U CN202120415508 U CN 202120415508U CN 214473891 U CN214473891 U CN 214473891U
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- box body
- eddy current
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- current sensor
- digital voltmeter
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Abstract
A device for on-site installation and calibration of an eddy current sensor comprises a box body, wherein a rechargeable battery is arranged in the box body, the input end of the rechargeable battery is electrically connected with a charging end on the outer wall of the box body, the output end of the rechargeable battery is electrically connected with a positive terminal and a negative terminal on the outer wall of the box body, a digital voltmeter is further arranged in the box body, one end of a measuring terminal of the digital voltmeter is connected with the negative terminal, the other end of the measuring terminal is connected with a signal terminal on the outer wall of the box body, the rechargeable lithium battery and the digital voltmeter are combined and placed in the box body to be carried about, a wiring terminal on the box body is connected with the eddy current sensor when the installation and calibration of the eddy current sensor are carried, the position relation between the eddy current sensor and a large shaft can form response voltage on the digital voltmeter according to the eddy current effect, the distance between the eddy current sensor and the large shaft is adjusted, and the number of the digital voltmeter is observed to be within the range of a set standard, the adjustment of all the eddy current sensors around the large shaft can be completed by only one person.
Description
Technical Field
The utility model relates to an instrument and meter field, especially an eddy current sensor field installation timing device.
Background
The eddy current sensor is widely applied to stability test of the water turbine generator set, and is arranged around the rotating large shaft for measuring the large shaft throw. The distance between the end of the sensor and the large shaft needs to be adjusted when the sensor is installed, so that the voltage signal generated by the sensor is in the middle of the signal measuring range. However, in field installation, the position adjustment of the sensor is often inconvenient, and firstly, the position adjustment of the sensor is performed under the condition that a tester is started to provide a working power supply of the sensor and monitoring data are fed back to a position adjustment worker, and the adjustment cannot be directly completed during installation; secondly, the sensor arrangement points are often poor in communication signals, communication between data monitoring personnel and sensor installation personnel is difficult when monitoring data is fed back, and communication tools such as interphones need to be used. The installation of the eddy current sensor increases the working complexity and reduces the test efficiency.
Disclosure of Invention
The utility model aims to solve the technical problem that a field installation timing device of eddy current sensor is provided, the device is light and handy portable, can accomplish signal proofreading when eddy current sensor installs, accomplishes its position control, improves test efficiency.
In order to solve the technical problem, the utility model discloses the technical scheme who adopts is:
the utility model provides an electric eddy current sensor field installation timing device, comprises a box bod, be equipped with rechargeable battery in the box body, rechargeable battery's input is connected with the end electricity that charges on the box body outer wall, rechargeable battery's output is connected with the positive terminal and the negative terminal electricity on the box body outer wall, still be equipped with digital voltmeter in the box body, digital voltmeter's measuring terminal one end is connected with the negative terminal, the other end is connected with the signal terminal on the box body outer wall, the positive terminal, negative terminal and signal terminal are used for being connected with outside electric eddy current sensor, digital voltmeter detects the voltage signal of electric eddy current sensor conveying and is used for expressing the distance between sensor and the target, so that install the timing.
The rechargeable battery is a rechargeable lithium battery, a voltage conversion circuit is arranged in the rechargeable lithium battery, the input end of the voltage conversion circuit is electrically connected with the charging end, and the output end of the voltage conversion circuit is electrically connected with the charging input end of the lithium battery.
The upper part of the box body is provided with a box cover, four corners of the box cover are provided with box cover bolts for being connected with the box body, the box cover is provided with a digital display window, and the digital display window is over against the display screen part of the digital voltmeter.
The utility model provides a field installation and calibration device of an eddy current sensor, which is characterized in that a rechargeable lithium battery and a digital voltmeter are combined and placed in a box body to be carried about, when the installation and calibration of the eddy current sensor are carried out, a connecting terminal on the box body is connected with the eddy current sensor, the position relation between the eddy current sensor and a large shaft can form response voltage on the digital voltmeter according to the eddy current effect, the distance between the eddy current sensor and the large shaft is adjusted, the number of the digital voltmeter is observed to be within the range of set standard, the calibration of all the eddy current sensors around the large shaft can be completed by only one person, in the prior art, one person is needed to observe a detection instrument, and the other person at the position of the eddy current sensor is informed to carry out calibration through an interphone, the effect is poor, the efficiency is low, and the device uses the rechargeable lithium battery, the normal use under the condition that no external power supply is arranged at the large shaft can be met.
Drawings
The invention will be further explained with reference to the following figures and examples:
FIG. 1 is a connection diagram of the structure of the device of the present invention;
FIG. 2 is a schematic view of the lid;
fig. 3 is a schematic diagram of the electrical connection of the present invention.
In the figure: the device comprises a rechargeable battery 1, a digital voltmeter 2, a box body 3, a digital display window 4, a charging end 5, a positive terminal 6, a negative terminal 7, a signal terminal 8, a box cover bolt 9, a box cover 10 and an eddy current sensor 11.
Detailed Description
As shown in fig. 1-3, an on-site installation and calibration device for an eddy current sensor comprises a box body 3, a rechargeable battery 1 is arranged in the box body 3, an input end of the rechargeable battery 1 is electrically connected with a charging end 5 on the outer wall of the box body 3, an output end of the rechargeable battery 1 is electrically connected with a positive terminal 6 and a negative terminal 7 on the outer wall of the box body 3, a digital voltmeter 2 is further arranged in the box body 3, one end of a measuring terminal of the digital voltmeter 2 is connected with the negative terminal 7, the other end of the measuring terminal is connected with a signal terminal 8 on the outer wall of the box body 3, the positive terminal 6, the negative terminal 7 and the signal terminal 8 are used for being connected with an external eddy current sensor 11, the digital voltmeter 2 detects a voltage signal transmitted by the eddy current sensor 11 and is used for indicating the distance between the sensor and a target so as to perform installation and calibration, the connection terminal on the box body is connected with the eddy current sensor when performing the installation and calibration of the eddy current sensor, the position relation between the eddy current sensor and the large shaft can form response voltage on the digital voltmeter according to the eddy current effect, the distance between the eddy current sensor and the large shaft is adjusted, the number of the digital voltmeter is observed to enable the digital voltmeter to be within the range of set standards, all the eddy current sensors around the large shaft can be calibrated only by one person, a detection instrument needs to be observed by one person in the past, another person at the eddy current sensor is informed to perform calibration through an interphone, the effect is poor, the efficiency is low, and the digital voltmeter is low
Foretell rechargeable battery 1 is rechargeable lithium cell, is equipped with voltage conversion circuit in the rechargeable lithium cell, and voltage conversion circuit input is connected with charging end 5 electricity, and voltage conversion circuit output is connected with lithium cell charging input electricity, uses rechargeable lithium cell can satisfy the normal use under the external power source condition not having in staff department.
The upper part of the box body 3 is provided with a box cover 10, four corners of the box cover 10 are provided with box cover bolts 9 for being connected with the box body 3, the box cover 10 is provided with a digital display window 4, and the digital display window 4 is over against the display screen part of the digital voltmeter 2.
Claims (3)
1. The utility model provides an electric eddy current sensor field erection timing device which characterized by: the intelligent detection box comprises a box body (3), a rechargeable battery (1) is arranged in the box body (3), the input end of the rechargeable battery (1) is electrically connected with a charging end (5) on the outer wall of the box body (3), the output end of the rechargeable battery (1) is electrically connected with a positive terminal (6) and a negative terminal (7) on the outer wall of the box body (3), a digital voltmeter (2) is further arranged in the box body (3), one end of a measuring terminal of the digital voltmeter (2) is connected with the negative terminal (7), the other end of the measuring terminal is connected with a signal terminal (8) on the outer wall of the box body (3), the positive terminal (6), the negative terminal (7) and the signal terminal (8) are used for being connected with an external eddy current sensor (11), and a voltage signal transmitted by the digital voltmeter (2) is used for indicating the distance between the sensor and a target so as to carry out installation and adjustment.
2. The device for adjusting the field installation of the eddy current sensor as claimed in claim 1, wherein the rechargeable battery (1) is a rechargeable lithium battery, a voltage conversion circuit is arranged in the rechargeable lithium battery, an input end of the voltage conversion circuit is electrically connected with the charging terminal (5), and an output end of the voltage conversion circuit is electrically connected with the charging input end of the lithium battery.
3. The device for adjusting the field installation of the eddy current sensor as claimed in claim 1, wherein a box cover (10) is arranged at the upper part of the box body (3), box cover bolts (9) are arranged at four corners of the box cover (10) and used for being connected with the box body (3), a digital display window (4) is arranged on the box cover (10), and the digital display window (4) is opposite to the display screen part of the digital voltmeter (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120415508.3U CN214473891U (en) | 2021-02-25 | 2021-02-25 | On-spot installation timing device of current vortex sensor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120415508.3U CN214473891U (en) | 2021-02-25 | 2021-02-25 | On-spot installation timing device of current vortex sensor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214473891U true CN214473891U (en) | 2021-10-22 |
Family
ID=78145909
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120415508.3U Active CN214473891U (en) | 2021-02-25 | 2021-02-25 | On-spot installation timing device of current vortex sensor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214473891U (en) |
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2021
- 2021-02-25 CN CN202120415508.3U patent/CN214473891U/en active Active
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