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Tester for detecting accuracy of total temperature indicator, and method for detecting accuracy of total temperature indicator

A technology of indicators and testers, applied in thermometers, thermometer testing/calibration, instruments, etc., to achieve the effects of reasonable design, simple external connections, and simplified test procedures

Inactive Publication Date: 2017-02-15
HARBIN
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

At present, there is no testing equipment for this part in our laboratory

Method used

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  • Tester for detecting accuracy of total temperature indicator, and method for detecting accuracy of total temperature indicator
  • Tester for detecting accuracy of total temperature indicator, and method for detecting accuracy of total temperature indicator
  • Tester for detecting accuracy of total temperature indicator, and method for detecting accuracy of total temperature indicator

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Embodiment Construction

[0018] The present invention will be described in detail below in conjunction with the accompanying drawings.

[0019] refer to figure 2 , an external 28V DC power supply, through the 28V-5V voltage conversion module, converts the 28V voltage into a DC 5V voltage to supply power to the system. The 5V voltage is adjusted to the analog voltage required by each test point of the total temperature indicator through each potentiometer, and finally the test cable directly adds the analog voltage to the total temperature indicator to check the test points of the total temperature indicator.

[0020] Before the test, connect the total temperature indicator tester to the 28V DC power supply, and then connect the total temperature indicator to the interface of the total temperature indicator tester. The switch on the tester panel is on. Close the main power switch of the tester, connect 28V, and start the test. Adjust the voltage of the potentiometer. When the voltage of 0.156V is r...

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Abstract

The invention provides a tester for detecting the accuracy of a total temperature indicator. The tester comprises a power supply, potentiometers (102) and voltmeters (103). The potentiometers (102) correspond respectively to interfaces (104) of a total temperature indicator, the voltage of each potentiometer (102) is detected by the voltmeter (103), the voltage is adjusted to a theoretical voltage value of the total temperature indicator, and the potentiometers (102) are connected to corresponding cable plugs of the total temperature indicator (2) to obtain test values. Further provided is a method for detecting the accuracy of the total temperature indicator, and the method comprises the steps of A, converting the voltage of the power supply to 5V and accessing the tester (1) according to claim 1; B, testing the voltage of each potentiometer, and adjusting the voltage to theoretical voltage value of the total temperature indicator; and C, connecting each of the potentiometers (102) of the tester (1) to the corresponding interface of the total temperature indicator (2), and obtaining experimental results.

Description

technical field [0001] The invention belongs to the technical field of atmospheric temperature detection, and in particular relates to a tester for detecting the accuracy of a total temperature indicator and a method for detecting the accuracy of the total temperature indicator. Background technique [0002] The total temperature indicator is installed on the dashboard of the aircraft cockpit, mainly to receive the total temperature DC analog signal from the aircraft air data computer, and to provide the total temperature indication to the aircraft. The total temperature indicator plays an important role in measuring the temperature of the atmosphere. It can be seen that the total temperature indicator plays a vital role in the atmospheric data system, and it must be calibrated before installation to ensure its good performance, otherwise it will affect the work of the atmospheric temperature measurement system. At present, there is no testing equipment for this part in our...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01K15/00
Inventor 刘欣于冰王福东邵丽红杨志
Owner HARBIN
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