A long-distance high-pressure, high-humidity underground rock and soil temperature testing system and its connection method

A connection method and testing system technology, which are applied to the geotechnical temperature testing system and its connection field under long-distance high pressure and high wetlands, can solve the problems of inaccurate temperature testing and easy water leakage, and achieve accurate understanding, improve operating efficiency, and test results. accurate effect

Inactive Publication Date: 2017-03-22
TIANJIN UNIV
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the connection point is under the condition of high pressure and high humidity all the year round, so it is easy to leak water, resulting in inaccurate temperature test

Method used

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  • A long-distance high-pressure, high-humidity underground rock and soil temperature testing system and its connection method
  • A long-distance high-pressure, high-humidity underground rock and soil temperature testing system and its connection method

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Embodiment Construction

[0027] In order to make the purpose, technical solution and advantages of the present invention clearer, the implementation manners of the present invention will be further described in detail below.

[0028] see figure 1 , a long-distance high-pressure high-humidity underground rock and soil temperature testing system mainly includes: Pt1000 armored platinum resistor 1, signal transmission cable (three-core shielded wire) 2, temperature conversion system 3.

[0029] Among them, the main components of the temperature conversion system 3 are as follows: figure 2 As shown, it specifically includes a temperature acquisition module 4 , an AC / DC converter 5 , an AD converter 6 , and a computer 7 .

[0030] The AC-DC converter 5 provides 24V DC operating voltage for the temperature acquisition module 4, the temperature conversion system 3 gathers the extension wire of the Pt1000 armored platinum resistance 1 to the temperature acquisition module 4, and the resistance signal is con...

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Abstract

The invention discloses a long-distance high-pressure, high-humidity underground rock-soil temperature testing system and a connection method thereof. The system includes: a platinum resistor connected to a signal transmission cable, an AC-DC converter providing a 24V DC working voltage for a temperature acquisition module, The extension wire of the platinum resistance thermometer is collected on the temperature acquisition module, and the resistance signal is converted into a temperature signal through an AD converter, and then transmitted to the computer for display and storage. The method includes: sealing the platinum resistor; sealing the connection between the platinum resistor and the signal transmission cable; and protecting the signal transmission cable. The present invention can carry out long-distance test on the rock-soil temperature under high-pressure and high-humidity environment; the test result is accurate; and because it is connected in parallel, if a problem occurs at a certain measuring point, it will not affect the test results of other measuring points. After experimental verification, The test time can reach more than 5 years.

Description

technical field [0001] The invention relates to the field of temperature measurement, in particular to a long-distance high-pressure, high-humidity underground rock and soil temperature testing system and a connection method thereof. Background technique [0002] At present, the sensors that can be used to test the temperature include alcohol thermometers, mercury thermometers, gas thermometers, resistance thermometers, thermocouple thermometers, radiation thermometers, light thermometers, bimetal thermometers, etc. Radiation thermometers and optical thermometers are non-contact thermometers, which are obviously not suitable for long-distance measurement. Although alcohol thermometers, mercury thermometers, gas thermometers, and bimetallic thermometers are direct contact, they are not suitable for long-distance measurement. [0003] Resistance thermometers and thermocouple thermometers can measure the temperature of objects at a distance. In the actual application process,...

Claims

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Application Information

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Patent Type & AuthorityPatents(China)
IPC IPC(8): G01K7/18G01K1/08G08C19/00
Inventor周志华娄承芝
OwnerTIANJIN UNIV