Heating control box detection device of airplane windshield

Abstract

The invention belongs to the testing technology and relates to a heating control box detection device of an airplane windshield. The heating control box detection device of the airplane windshield comprises an AC signal module, a DC display module, a resistance conversion module and a connection output module. The AC signal module for providing a three phase current signal to a heating control box, the DC display module for providing a DC signal to the heating control box, and the resistance conversion module for providing a resistance signal to the heating control box are mutually independent, and are respectively connected with the connection output module which is used for providing an output signal to the heating control box. The AC signal module comprises a left three phase AC mutual inductor, a right three phase AC mutual inductor, a change over switch and an externally connected load. According to the invention, the one phase 115V is used to replace the three phase 115V as a power supply, and one slide bar resistor is used to replace three load resistors. The detection circuit is effectively simplified; the production cost of the detection device is reduced; and the detection work is easier to carry out.

Description

technical field [0001] The invention belongs to testing technology, and relates to a heating control box detection device for aircraft windshield glass. Background technique [0002] Yun 8 There are 4 pieces of windshield glass for the driver before a certain model, they are the side glass of the left driver, the front glass of the left driver, the front glass of the right driver, and the side glass of the right driver. A single-phase 115V power supply is used to supply power to one temperature resistor inside the glass to realize the heating of four windshield glasses, ensuring that the pilot of the aircraft can observe the outside of the aircraft at high altitude. Starting from a certain model, the driver's windshield glass is changed from 4 pieces to 2 pieces, one piece for the left and right drivers, and each piece of glass is twice the size of the original one piece, so that the driver's high-altitude observation field outside the aircraft is significantly wider. [00...

AI Technical Summary

Problems solved by technology

Therefore, the existing single-phase 115V power supply mode and the configuration of a single resistive load can no longer meet the needs of the ground detection of the XJW-1 glass heating control box of a certain type of aircraft.

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