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A low temperature detection device for overhead line vibration sensor

A vibration sensor, overhead line technology, used in measuring devices, instruments, measuring ultrasonic/sonic/infrasonic waves, etc., can solve problems such as inaccurate detection, and achieve the effect of improving accuracy, reducing energy consumption and reducing heat loss

Active Publication Date: 2018-03-23
STATE GRID CORP OF CHINA +2
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to solve the problem that the standard sensor is in a low temperature environment when the vibration sensor is calibrated in the transmission line, resulting in inaccurate detection, and proposes a low temperature detection device for the vibration sensor of the overhead line

Method used

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  • A low temperature detection device for overhead line vibration sensor
  • A low temperature detection device for overhead line vibration sensor
  • A low temperature detection device for overhead line vibration sensor

Examples

Experimental program
Comparison scheme
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specific Embodiment approach 1

[0030] Specific implementation mode one: combine figure 1 , 2 , 3 and 4 illustrate that this is an implementation mode, a low-temperature detection device for an overhead line vibration sensor described in this embodiment mode, which includes a vibration transmission rod, two rotating supports 2, a thermostat, a motor 6, a vibration transmission pin 8, Standard sensor 14, rotating pin plate 13, positioning pin 11, No. 1 detection rod 4 and No. 2 detection rod 16;

[0031] The sensor under test 3 is located inside the thermostat;

[0032] The side wall of the incubator is a heat insulation board 5; the heat insulation board 5 has a through hole 9;

[0033] The vibration transmission rod includes a middle transmission vibration rod 18, an outer transmission vibration rod 1 and an inner transmission vibration rod 17. The middle transmission vibration rod 18, the outer transmission vibration rod 1 and the inner transmission vibration rod 17 are all cylinders, and the middle tran...

specific Embodiment approach 2

[0040] Embodiment 2: This embodiment is to further limit the low-temperature detection device of an overhead line vibration sensor described in Embodiment 1. In this embodiment, the two rotating supports 2 are respectively located inside the thermostat and Externally, in order to avoid adverse effects of low temperature on the two rotating supports 2, the two rotating supports 2 can be located outside the thermostat.

specific Embodiment approach 3

[0041] Embodiment 3: This embodiment further limits the low-temperature detection device of an overhead line vibration sensor described in Embodiment 1. In this embodiment, the vibration transmission pin 8 is a rectangular thin plate.

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Abstract

The invention provides a low temperature detection apparatus for an overhead line vibration sensor, and relates to the technical field of low temperature vibration sensor. The low temperature detection apparatus is used for solving the problem that when a standard sensor is under the lower temperature environment, the detection is not accurate. The side wall of a temperature box is a thermal insulation board which is provided with a through hole; a middle vibration transmission bar penetrates through the through hole; two rotary supports are used for supporting the vibration transmission bar; one end of a vibration transmission pin is fixed at the end point of an external vibration transmission bar, and the other end of the vibration transmission pin is semi-rigidly connected with a motor; a rotary pin disk is arranged between the vibration transmission pin and the motor; one end of a positioning pin is fixed on the rotary pin disk, and the other end of the positioning pin is arranged in a sliding pin hole; one end of a No.1 detection bar is hinged with a standard sensor, and the other end of the No.1 detection bar is pressed on the side wall of the external vibration transmission bar; and one end of a No.2 detection bar is hinged with a detected sensor, and the other end of the No.2 detection bar is pressed on the side wall of an internal vibration transmission bar. The low temperature detection apparatus for an overhead line vibration sensor has the advantages of preventing the low temperature from influencing the standard sensor, improving the accuracy of the standard sensor, and being suitable for low temperature detection of a vibration sensor.

Description

technical field [0001] The invention relates to the technical field of low-temperature vibration sensor detection, in particular to low-temperature detection equipment for vibration sensors of overhead lines. Background technique [0002] The overhead line is an important part of the power transmission and transformation equipment in the power system, forming a powerful energy transmission framework of the modern power system. Because the overhead line carries energy transmission, its safety and reliability have a great impact on the power grid, and its safe operation is of great significance. If the overhead line is damaged or an accident occurs, it will have a huge impact on the reliable operation of the power grid and the safe and stable power supply. In recent years, my country's energy demand has continued to increase, the scale and density of power line systems have continued to expand, and the number of high-voltage, long-distance transmission lines across rivers, la...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01H17/00
CPCG01H17/00
Inventor 于春来刘洋王志斌张福忠盛玉和张洪达梁建权李琳王悦胡远婷李童孙巍郭蕴杨玉新
Owner STATE GRID CORP OF CHINA