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A photosensitive composite water entry detection device

A technology of water entry detection and photosensitive detection, which is applied in the field of sensors, can solve problems such as false triggering, non-triggering when entering water, man-made or environmental pollution, etc., and achieves the effects of good reliability, reliable function, and rapid detection response

Pending Publication Date: 2019-01-25
AEROSPACE LIFE SUPPORT IND LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] In order to overcome the influence of man-made, environmental pollution and natural environmental factors existing in the existing technical approaches, the present invention provides a photosensitive composite water entry detection device, which can effectively solve the problem of false triggers such as man-made or environmental pollution in the helicopter floating system water entry detection device , as well as false triggering under icing conditions and non-triggering issues when entering water under strong light conditions

Method used

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  • A photosensitive composite water entry detection device

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Effect test

Embodiment 1

[0027] Example 1, see figure 1 , provides a photosensitive composite water entry detection device, including an infrared emitting diode 1, a phototransistor 2, a base 3, an optical probe 4, an infrared one-way light-transmitting film 5, a positive electrode 6, a negative electrode 7, and a photosensitive detection circuit 8 , conduction detection circuit 9 and logic AND circuit 10;

[0028] The base is provided with a light-emitting hole and a receiving hole, the infrared emitting diode is fixed in the light-emitting hole, and the phototransistor 2 is fixed in the receiving hole; and the openings of the light-emitting hole and the receiving hole are covered with polysulfone material, and the polysulfone material forms An optical probe with an optical interface, the optical interface of the polysulfone material is covered with an infrared one-way light-transmitting film;

[0029] The infrared emitting diode is used as the emitting light source, and the infrared light source in...

Embodiment 2

[0034] Embodiment 2 provides a photosensitive composite water entry detection device, including an infrared emitting diode 1, a phototransistor 2, a base 3, an optical probe 4, an infrared one-way light-transmitting film 5, a positive electrode 6, a negative electrode 7, a photosensitive Detection circuit 8, conduction detection circuit 9 and logic AND circuit 10;

[0035] The base is provided with a light-emitting hole and a receiving hole, the infrared emitting diode is fixed in the light-emitting hole, and the phototransistor 2 is fixed in the receiving hole; and the openings of the light-emitting hole and the receiving hole are covered with polysulfone material, and the polysulfone material forms An optical probe with an optical interface, the optical interface of the polysulfone material is covered with an infrared one-way light-transmitting film;

[0036] The infrared emitting diode is used as the emitting light source, and the infrared light source in the non-visible li...

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Abstract

The invention provides a photosensitive composite water entry detection device comprises an infrared emitting diode, a photosensitive transistor, a base, an optical probe, an infrared unidirectional light transmitting film, a positive electrode, a negative electrode, a photosensitive detection circuit, a conductive detection circuit and a logic AND circuit, wherein, the photosensitive composite water entry detection device comprises an infrared emitting diode, a photosensitive transistor, a base, an optical probe, an infrared unidirectional light transmitting film, a positive electrode, a negative electrode, a photosensitive detection circuit and a logic AND circuit. A photosensitive composite water inlet detecting device, rapid detection, Simple circuit principle, Reliable function, at present, that practical application of the helicopt floating system is sol, The false triggering phenomenon of water entry detection under the natural environment such as freezing or man-made misoperation conditions, and the non-triggering phenomenon of water entry under the natural strong light environment, therefore, the invention has good reliability and strong pertinence, and can be widely popularized and applied in many fields of multi-type helicopters and offshore life-saving floating platforms, and has great practical value.

Description

technical field [0001] The invention relates to the field of sensors, in particular to a photosensitive composite water entry detection device. Background technique [0002] The photosensitive composite water entry detection device is used to judge whether the helicopter has fallen into the water from the air in the automatic mode, and gives the relevant switch signal, which is used as the input value of the airbag of the airborne flotation system to inflate and deploy the flotation system after the aircraft enters the water. The medium is air and water (including seawater, rivers and lakes). [0003] Water and air are very different in many parameters. According to the differences in these parameters, there are many methods to realize water entry detection, such as conductivity method, thermal conductivity method, buoyancy method, ultrasonic method, differential pressure method, capacitance method, and photosensitive method. However, due to the influence of the external en...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B64D45/00G01N21/3577G01N27/02
CPCG01N21/3577G01N27/02B64D45/00Y02A90/30
Inventor 刘梅虎李名琦张胜平刘杰
Owner AEROSPACE LIFE SUPPORT IND LTD
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