Freezing sensor based on short wave infrared

An icing sensor and short-wave infrared technology, applied in deicing devices, aircraft parts, transportation and packaging, etc., can solve the problems of unsuitable installation of reflective sensors, inability to detect icing on the side surface of the engine, etc., and achieve environmental adaptability Strong, comprehensive detection and high detection accuracy

Pending Publication Date: 2022-03-18
WUHAN AVIATION INSTR
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AI Technical Summary

Problems solved by technology

[0005] However, for the icing sensor near the air intake of the aircraft, due to the influence of the hot bleed air of the intake, it is not suitable to install a reflective sensor, and it is impossible to detect icing on the side surface of the engine

Method used

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  • Freezing sensor based on short wave infrared
  • Freezing sensor based on short wave infrared
  • Freezing sensor based on short wave infrared

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Embodiment

[0026] Please also see figure 2 , image 3 and Figure 4 , the present invention is based on the short-wave infrared type icing sensor comprising a probe, a pole, and a base. The probe is installed on the base through a pole, wherein the probe includes a probe main body, an icing rod, a protective cover, a light source, and a detector. The icing rod is horizontally arranged in the end of the probe main body, and the peripheral edge of the probe main body at the same plane as the icing rod is arranged staggered with several detectors and light sources, in the form of transmitted light, the atmospheric environment at the icing rod is For detection, the probe main body and the protective cover are hollow structures, and the protective cover is sleeved on the end of the probe main body and covers the position where the icing rod is set. The connection hole of the valve, the light source installation hole communicates with the through hole of the probe body to form an ejection ...

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Abstract

The invention belongs to the technical field of airplane ice prevention and removal, and relates to a short wave infrared type icing sensor. The icing sensor based on the short wave infrared type comprises a probe, a supporting rod and a base, wherein the probe is mounted on the base through the supporting rod. The probe comprises a probe body, an icing rod, a protective cover, light sources and detectors, the icing rod is transversely arranged in the end of the probe body, the detectors and the light sources are arranged on the periphery of the end, on the same plane, of the icing rod in a staggered mode, and the probe body and the protective cover are of a hollow structure. And the protective cover is sleeved on the end head of the probe main body and covers the setting position of the icing rod. The end of the probe body is provided with a connecting hole communicated with the surface of the end and the air guide valve, and the light source mounting hole is communicated with the through hole of the probe body to form an air flow injection channel. A special hot air entraining mode and a detection mode are adopted, ice can be detected, meanwhile, snow can be detected, and detection on the icing condition is more comprehensive and effective.

Description

technical field [0001] The invention belongs to the technical field of aircraft anti-icing and relates to a short-wave infrared-based icing sensor. Background technique [0002] In the field of aircraft anti-icing technology, the icing sensor is used to detect the icing of the aircraft. When the aircraft enters the icing weather conditions, or the ice thickness of the key parts of the aircraft reaches a certain level, an alarm signal is sent, and the crew opens the aircraft anti-icing system accordingly. , reduce the possibility of aircraft crashes in icing conditions, and ensure flight safety. [0003] Domestic icing detection mainly uses resonant icing sensors based on the principle of mechanical resonance, such as figure 1 As shown, the detection of complex icing meteorological conditions such as ice and snow conditions cannot be recognized by this sensor. [0004] In addition, some infrared icing sensors developed in the prior art generally adopt reflection type, such ...

Claims

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Application Information

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IPC IPC(8): B64D15/20
CPCB64D15/20
Inventor 杨奇可彭泽友李沛林刘畅
Owner WUHAN AVIATION INSTR
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