Method for detecting fuel quantity sensing annunciator

A technology for sensing signals and oil quantity, applied in measuring devices, liquid/fluid solids measurement, instruments, etc., to achieve the effect of simplifying test procedures, easy operation and reasonable design

Inactive Publication Date: 2017-04-26
HARBIN
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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  • Method for detecting fuel quantity sensing annunciator
  • Method for detecting fuel quantity sensing annunciator
  • Method for detecting fuel quantity sensing annunciator

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Embodiment Construction

[0016] The present invention will be described in detail below in conjunction with the accompanying drawings.

[0017] refer to figure 2 , an external 220V AC power supply, through the power conversion module, the 220V voltage is converted into a DC 5V voltage to supply power to the conversion circuit; ±15V voltage is used to supply power to the excitation source. The conversion circuit uses low-power Schottky diodes and high-precision integrated operational amplifiers to improve conversion linearity. The display uses a 4.5-digit panel meter to display the sensor capacitance value.

[0018] Test content

[0019] 1) Preparation

[0020] according to figure 1 Use a test cable to connect the sensor tester and the oil quantity sensor annunciator, set the "selection" switch of the sensor tester to the calibration position, set the calibration capacitor switch to "0", and turn on the power switch of the sensor tester.

[0021] 2) Calibration of the capacitance file of the sens...

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Abstract

A method for detecting a fuel quantity sensing annuciator includes steps: step 1, the fuel quantity sensing annuciator 5 inputs fuel quantity sensing signals into a conversion circuit 3; step 2, the conversion circuit 3 converts the fuel quantity sensing signals into voltage signals; step 3, the conversion circuit 3 sends the voltage signals to a panel meter 4, and the panel meter 4 displays a capacitance numerical value according to the acquired voltage signals.

Description

technical field [0001] The invention belongs to the field of fuel oil measurement, and in particular relates to a method for detecting a fuel oil quantity sensor signal device. Background technique [0002] The fuel oil quantity sensor signal device is part of the fuel measurement system, which is a key system to ensure the normal flight of the aircraft and provides power energy for the aircraft. The fuel quantity sensor signal sensor senses the fuel quantity sensor, and transmits the fuel quantity value of the fuel tank and the high and low oil level information to the fuel quantity computer, and the system of the flight ginseng and engine ginseng in time. The pilot adjusts the flight status according to various values. It can be seen that the fuel oil quantity sensor annunciator plays a vital role in the fuel measurement system, and it must be calibrated before installation to ensure its good performance, otherwise it will affect the work of the fuel measurement system. ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01F25/00
CPCG01F25/24
Inventor 刘欣刘春磊于冰王福东邵丽红杨志
Owner HARBIN
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