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Air data probe with induction heating function and temperature control method thereof

A technology of air data and induction heating coils, applied in temperature control, electric temperature control, non-electric variable control, etc., can solve the problems of difficult temperature sensor, lack of reliability, and practical pitot tube temperature measurement method

Pending Publication Date: 2019-04-26
ORIGINEX ENG SHANGHAI CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Due to the small size of the conical part of the pitot tube, it is difficult to introduce an additional temperature sensor inside it
The lack of a reliable and practical pitot tube temperature measurement method restricts the widespread application of more energy-saving and sensitive control methods in practice

Method used

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  • Air data probe with induction heating function and temperature control method thereof
  • Air data probe with induction heating function and temperature control method thereof
  • Air data probe with induction heating function and temperature control method thereof

Examples

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Embodiment Construction

[0038] figure 1 is a block diagram of an air data probe system 100 according to an embodiment of the application. System 100 includes an inductive power generator 102 , an air data probe 104 with integrated induction coil 106 , and aircraft avionics system 108 . Arrows between components in the diagram indicate the direction of signal feed. These signals can be electrical signals, control signals, mechanical signals or any combination between them. The avionics system 108 here may include the aircraft electronics system without the associated inductive power generator 102 . Coil 106 may be a helical type, a single turn type or a pie plate type. The inductive power generator 102 includes a rectifier, an inverter, load matching circuits, and control and monitoring circuits. For example, it can convert the aircraft's 115 / 220V AC at 400Hz to the frequency and current / voltage required by the induction coil 106 embedded in the probe 104 . If the air data probe 104 has multiple ...

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PUM

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Abstract

The invention relates to an air data probe with an induction heating function and a temperature control method thereof. A system is provided, the system includes an air data probe with an induction coil and an induction power generator. In some examples, a pitot tube has an induction coil with a straight tube portion and an induction coil with a tip or tapered portion. The induction power generator provides a high frequency alternating current signal to one or more induction coils. The induction coils generate an alternating magnetic field inside the conduction portion of the pitot tube aroundthe induction coils so that heat is co-generated by the joule effect and hysteresis effect caused by eddy current. The control system independently controls the signals, which includes frequency, current and voltage and are applied to the respective induction coils.

Description

technical field [0001] This application relates to aircraft air data probes, such as pitot tubes. In particular, the present application relates to air data probes with integrated induction heating systems for anti-icing. Background technique [0002] Icing of pitot tubes and other air data probes (e.g., pitot-static tubes, static ports, full temperature probes, and angle-of-attack sensors / alpha vanes) has long been recognized as a serious flight safety hazard. The hidden danger has caused many fatal crashes. [0003] The worst icing conditions occur when flying at high altitudes as the plane passes through clouds of supercooled water droplets. These supercooled water droplets quickly freeze, adhere, and accumulate upon impacting any unprotected or insufficiently heated surface. Additionally, ice crystals or water droplets may be sucked into the openings of the various probes. [0004] Pitot tubes are an example of all air data probes that often face icing problems. Air...

Claims

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Application Information

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IPC IPC(8): G05D23/19G05D23/20G05D23/22G05D23/24G05F1/66G01D21/02
CPCG05D23/1919G05D23/20G05D23/22G05D23/24G05F1/66G01D21/02
Inventor 汪舒平
Owner ORIGINEX ENG SHANGHAI CO LTD
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