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Program-controlled oil quantity and oil temperature simulation device

A simulation device and technology of program-controlled fuel volume, which is applied in the field of oil temperature signal simulation and aircraft fuel volume, can solve the problems of large measurement error, inconvenience, cumbersome operation, etc., and achieve high work efficiency, avoid measurement error, and easy operation

Inactive Publication Date: 2019-07-16
CHENGDU AIRCRAFT INDUSTRY GROUP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The traditional simulation device can only simulate the capacitance and resistance signals measured by the fuel sensor through manual fine-tuning switches. The operation is cumbersome and the measurement error is large, which brings inconvenience to the on-site power-on test.

Method used

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  • Program-controlled oil quantity and oil temperature simulation device
  • Program-controlled oil quantity and oil temperature simulation device

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0029] The present invention is realized through the following technical solutions, as Figure 1-5 As shown in the figure, a program-controlled oil quantity and temperature simulation device is electrically connected to the fuel signal conversion box, including a standard cabinet 1, and also includes a test cable interface 2 integrated in the standard cabinet 1, an equipment power interface 3, and a regulated DC power supply. 4. Industrial computer 5, program-controlled capacitor box 6, display 7; the test cable interface 2 and the equipment power interface 3 are arranged outside the standard cabinet 1, and the equipment power interface 3 is connected to the regulated DC power supply 4; the regulated voltage The DC power supply 4 is connected to the industrial computer 5, the program-controlled capacitor box 6, and the display 7;

[0030] It should be noted that, through the above improvements, the present invention proposes a program-controlled oil volume and oil temperature ...

Embodiment 2

[0034] This embodiment is further optimized on the basis of the above embodiments, such as figure 1 As shown, the program-controlled capacitor box 6 is provided with an operation panel, and the operation panel includes a dial switch 8, a key switch 9, a light emitting diode 10, and a power switch 11; the key switch 9 includes a check switch, a self-check switch , Reset switch.

[0035] It should be noted that, through the above improvements, the operation panel of the program-controlled capacitor box 6 is provided with a dial switch 8, which is used to output the capacitance and resistance of the corresponding gear when the program-controlled capacitor box 6 is checked, and the dial switch 8 There are four combinations, namely 0001, 0010, 0100, 1000. The key switch 9 is used for the verification, self-inspection and reset functions of the program-controlled capacitor box 6, including a verification switch, a self-inspection switch, and a reset switch. The light emitting diod...

Embodiment 3

[0038] This embodiment is further optimized on the basis of the above embodiments, such as Figure 2-3As shown, the program-controlled capacitor box 6 includes a microprocessor, an address latch, and a relay matrix unit connected in sequence, the microprocessor is connected to the industrial computer 5, and the relay matrix unit is connected to the fuel signal through the test cable interface 2 Switching box is electrically connected; the microprocessor adopts 8051 single-chip microcomputer; the model of the address latch is 74LS373, and the address latch is connected with the 8051 single-chip microcomputer; the quantity of the relay matrix unit is multiple, and all with The address latch is connected; each relay matrix unit includes an optocoupler isolation drive circuit, a relay, and a standard capacitor connected in sequence.

[0039] It should be noted that, through the above improvements, the verification process of the simulation device: after the simulation device is po...

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PUM

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Abstract

The invention discloses a program-controlled oil quantity and oil temperature simulation device. The program-controlled oil quantity and oil temperature simulation device is electrically connected with a fuel oil signal conversion box and comprises a standard cabinet, and a test cable interface, a device power interface, a voltage-stabilizing direct-current power supply, an industrial personal computer, a program-controlled capacitor box and a display which are integrated on the standard cabinet; the test cable interface and the device power interface are arranged at the outer portion of the standard cabinet, and the device power interface is connected with the voltage-stabilizing direct-current power supply; the voltage-stabilizing direct-current power supply is connected with the industrial personal computer, the program-controlled capacitor and a display; the fuel oil signal conversion box is connected with the program-controlled capacitor box through the test cable interface, and the program-controlled capacitor box is connected with the display through the industrial personal computer. The program-controlled oil quantity and oil temperature simulation device solves the problemthat a real oil tank and a fuel oil quantity sensor are not required in the ground electrifying test process of a fuel oil signal conversion box and an aircraft fuel oil system, and a corresponding switch is only controlled on the control panel to supply required capacitance and resistance simulation signals for the fuel oil signal conversion box.

Description

technical field [0001] The invention relates to the technical field of aircraft fuel quantity and oil temperature signal simulation, in particular to a program-controlled fuel quantity and oil temperature simulation device. Background technique [0002] The fuel signal conversion box is an important electrical device in the aircraft fuel measurement system. Its output voltage signal has a linear relationship with the measured fuel capacitance signal. Whether it works normally directly affects the calculation result of the aircraft fuel quantity. During the power-on test of the fuel signal conversion box, ground equipment is required to simulate the capacitance and resistance signals measured by the fuel sensor. After internal conversion and data processing, they are converted into voltage signals and transmitted to the fuel computer for data calculation to obtain the real fuel in the aircraft fuel tank. magnitude. [0003] The traditional simulation device can only simulate...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01R31/00
CPCG01R31/00
Inventor 张永强邓乐武徐海虹秦红黄赟
Owner CHENGDU AIRCRAFT INDUSTRY GROUP
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