CN114476080A - Icing detection system for medium and large-sized transport plane - Google Patents
Icing detection system for medium and large-sized transport plane Download PDFInfo
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- CN114476080A CN114476080A CN202111612257.9A CN202111612257A CN114476080A CN 114476080 A CN114476080 A CN 114476080A CN 202111612257 A CN202111612257 A CN 202111612257A CN 114476080 A CN114476080 A CN 114476080A
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- icing
- ice
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- melting
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B64—AIRCRAFT; AVIATION; COSMONAUTICS
- B64D—EQUIPMENT FOR FITTING IN OR TO AIRCRAFT; FLIGHT SUITS; PARACHUTES; ARRANGEMENTS OR MOUNTING OF POWER PLANTS OR PROPULSION TRANSMISSIONS IN AIRCRAFT
- B64D15/00—De-icing or preventing icing on exterior surfaces of aircraft
- B64D15/20—Means for detecting icing or initiating de-icing
Abstract
The invention belongs to the technical field of deicing prevention and control, and relates to an icing detection system for a medium-large sized conveyor. The ice-melting ice-. The icing sensor senses the thickness of the ice layer of the main body through a vibrator assembly extending out of the machine; the ice melting sensor senses the thickness of an ice layer on the outer surface of the wing through a vibrator component of an embedded flat die structure; the temperature sensor plays a role in assisting in judging the icing environment; the ice-melting effect resolver judges whether the ice accumulation exists on the surface of the ice-melting sensor or not by resolving the frequency signal; the icing detection controller judges whether the icing sensor is in an icing environment or not by resolving the frequency signal and the temperature signal, and transmits ice melting information and system working state information to the upper computer at the same time. The icing condition of the machine head and the main machine body can be detected, and the icing condition of the outer wing and the horizontal tail wing can be detected more effectively. In the system, only the icing detection controller and the upper computer transmit icing information.
Description
Technical Field
The invention belongs to the technical field of ice prevention and deicing, and relates to an icing detection system for a medium-sized and large-sized conveyor.
Background
When the airplane flies under icing meteorological conditions, icing phenomena can be generated on the surface of the airplane, and the phenomenon can seriously threaten the flight safety of the airplane. In recent years, the problem of aircraft icing has been receiving more and more attention, and detection of icing conditions is very necessary in order to reduce its impact on aircraft flight safety and performance. The icing condition on the surface of the airplane is detected, and an icing warning signal can be sent to flight crews in time so as to take measures to process an ice layer and minimize the influence of the icing condition on the airplane.
The icing detection device is special detection and alarm equipment for detecting whether icing exists on the surface of the airplane when the airplane flies under icing meteorological conditions. The conventional icing detection device consists of an icing sensor and an icing detection controller, can only detect the icing condition at a nose, has limited detection capability and detection range for medium and large transport airplanes, has certain defects, and cannot effectively detect the icing condition of wings.
In order to reduce the possibility of flight accidents caused by the icing of the airplane, ensure the safe flight of the airplane under the icing weather condition and meet the icing detection requirements of medium and large-sized transporters, the invention carries out optimized design on the traditional icing detection device, makes up the defect of narrow detection range in the prior art, and designs and develops an icing detection system for medium and large-sized transporters by combining the structure of the medium and large-sized transporters. The system consists of two icing sensors, four ice melting sensors, a temperature sensor, an ice melting effect resolver and an icing detection controller, and can effectively detect the icing condition of the nose, the middle and outer wings and the horizontal tail wing of the transport plane.
Disclosure of Invention
The purpose of the invention is: aiming at the structure of a medium-large sized conveyor, the icing detection system for the medium-large sized conveyor is designed and developed, so that the icing condition of a machine head can be detected, the icing conditions of an outer wing and a horizontal tail wing in the conveyor can be effectively detected, and the icing detection can be carried out in a large range. Meanwhile, only the icing detection controller and the upper computer in the icing detection system transmit icing information, and the information is transmitted clearly.
The technical scheme of the invention is as follows:
an icing detection system for a medium or large sized transport, characterized by: the ice melting system comprises two icing sensors, four ice melting sensors, a temperature sensor, an ice melting effect resolver and an icing detection controller; the icing sensor is electrically connected with the icing detection controller through a socket cable, and transmits a frequency signal, a power supply and a heating signal; the temperature sensor is electrically connected with the icing detection controller through a socket cable to transmit a power supply signal and a temperature signal; the ice melting sensor and the ice melting effect resolver are electrically connected through a socket cable, and an excitation signal and a feedback signal of the ice melting sensor are transmitted; the ice-melting effect resolver is electrically connected with the ice-melting sensor and the icing detection controller through a socket cable, transmits an excitation signal and a feedback signal of the ice-melting sensor, and transmits ice-melting information to the icing detection controller through a 429 signal; the icing detection controller is electrically connected with the icing sensor, the temperature sensor and the ice melting effect solver through a socket cable; and transmits the working state of the system and the information of icing and ice melting to the upper computer through 429 signals.
The icing sensor comprises a vibrator component, a driving circuit component, a heater, a connector, a base and a rear cover. The vibrator subassembly and the heater install on the base, drive circuit subassembly and connector install on the back lid, drive circuit subassembly and connector, vibrator subassembly all have the electrical connection relation.
The ice melting sensor comprises a vibrating head assembly, a regulator assembly and a sealing welding socket. The vibrating head assembly and the seal welding socket are connected with the regulator assembly in a welding mode to form the integrally sealed ice melting sensor.
The temperature sensor comprises a sensitive element, a connector, a base and a housing. The sensitive element is arranged on the base, is protected by the outer cover and is connected with the connector.
The ice-melting effect solver comprises a power circuit component, an alternating-current and amplifying circuit component, a single chip circuit component, a base, an outer cover and a connector. The power supply circuit assembly, the cross-amplifying circuit assembly and the single chip microcomputer circuit assembly are arranged on the base through the supporting columns, an outer cover is used for protecting an internal circuit outside, and the power supply circuit assembly, the cross-amplifying circuit assembly and the single chip microcomputer circuit assembly are connected with the connector.
The icing detection controller comprises a power supply driving circuit component, a signal processing circuit component, a base, a rear cover and a connector. The power driving circuit assembly and the signal processing circuit assembly are arranged on the base through the supporting columns, the internal circuit is protected by the rear cover outside the base, and the power driving circuit assembly and the signal processing circuit assembly are connected with the connector.
The power supply driving circuit component provides heating voltage for the heater and provides power supply signals for the driving circuit component, and the driving circuit component provides excitation signals for the vibrator component and converts received feedback signals into frequency signals which can be received by the signal processing circuit component. The cross-amplifying circuit component provides a voltage excitation signal for the vibrating head component, the vibrating head component provides a feedback signal for the cross-amplifying circuit component after receiving the excitation signal and processing the excitation signal by the regulator component and the vibration pickup, and the cross-amplifying circuit component converts the feedback signal into a frequency signal which can be received by the single chip circuit component after processing the feedback signal. After the single chip circuit assembly resolves the frequency signals of the four ice melting sensors, the working states of the ice melting information, the ice melting effect resolver and the ice melting sensors are transmitted to the signal processing circuit assembly through 429 signals. The power supply driving circuit component provides voltage signals for the temperature sensor, and the temperature sensor provides temperature signals for the signal processing circuit component. The signal processing circuit component receives the ice melting signal, the frequency signal and the temperature signal and provides an ice melting warning signal, an icing warning signal and a system working state signal for the upper computer.
The icing sensor structure is an outer leaking rod type structure.
The ice melting sensor structure is an embedded flat-die structure.
The temperature sensor structure is an embedded flat die structure, a sensitive element of the temperature sensor structure is protected by an outer cover, and a bulge with the maximum leakage part and the mounting plane being not more than 5mm exists.
The invention has the advantages and beneficial effects that:
the icing detection system aims at the structure of a medium-sized and large-sized transporter, can detect the icing condition of the aircraft nose, and can effectively detect the icing condition of the middle and outer wings and the horizontal tail wing of the transporter.
The ice melting sensor structure is an embedded flat-die structure, and a vibrating head component of the ice melting sensor structure is in direct contact with an ice layer. The device can be arranged at any position on the outer surface of the wing, can detect icing at different attack angles, and improves the adaptability of an icing detection system to different machine types.
The icing detection system consists of an icing sensor, an ice melting sensor, a temperature sensor, an ice melting effect resolver and an icing detection controller, but only the icing detection controller and an upper computer in the icing detection system transmit icing information and a system working state, and the information transmission is clear.
The number of the icing sensors and the ice melting sensors can be determined according to actual use conditions, the distributing cables are used for electrical connection, and redundancy design is adopted, so that the reliability and the safety can be effectively improved. The icing detection system also has a self-checking function, and can effectively detect faults.
The icing sensor has a simple structure, only has a driving circuit component, does not contain electronic components in the ice melting sensor, and meets the requirements of the new generation of airplanes on the size, weight and weight of the sensor.
Drawings
FIG. 1 is a schematic view of an ice sensor;
FIG. 2 is a schematic structural diagram of an ice melting sensor;
FIG. 3 is a schematic structural diagram of a temperature sensor;
FIG. 4 is a schematic structural diagram of an ice-melting effect solver;
FIG. 5 is a schematic structural view of an icing detection controller;
FIG. 6 is a functional block diagram of an icing detection system;
FIG. 7 is a functional block diagram of an icing sensor;
FIG. 8 is a block diagram of the working principle of the ice melting sensor;
FIG. 9 is a block diagram of the working principle of the temperature sensor;
FIG. 10 is a block diagram of the working principle of the ice melting effect solver;
FIG. 11 is a functional block diagram of an icing detection controller.
Wherein: 1-icing sensor, 1-1 vibrator component, 1-2 driving circuit component, 1-3 heater, 1-4 connector, 1-5 base and 1-6 rear cover;
2-an ice melting sensor, 2-1 a vibrating head component, 2-2 a regulator component and 2-3 a sealing welding socket;
3-a temperature sensor, 3-1 a sensitive element, 3-2 a connector, 3-3 a base and 3-4 an outer cover;
4-ice melting effect resolver, 4-1 power supply circuit component, 4-2 alternating-current circuit component, 4-3 single chip circuit component, 4-4 base, 4-5 outer cover and 4-6 connector;
5-icing detection controller, 5-1 power supply driving circuit component, 5-2 signal processing circuit component, 5-3 base, 5-4 rear cover and 5-5 connector.
Detailed Description
The present invention will be further described with reference to the following examples. The following description is only a part of the embodiments of the present invention, and not all embodiments. All other embodiments, which can be obtained by a person skilled in the art without any inventive step based on the embodiments of the present invention, are within the scope of the present invention.
An icing detection system for a medium or large sized transport, characterized by: the ice melting system comprises two icing sensors 1, four ice melting sensors 2, a temperature sensor 3, an ice melting effect resolver 4 and an icing detection controller 5; the icing sensor 1 is only electrically connected with the icing detection controller 5 through a socket cable to transmit frequency signals, power supplies and heating signals; the temperature sensor 3 is only electrically connected with the icing detection controller 5 through a socket cable to transmit power signals and temperature signals; the ice melting sensor 2 is only electrically connected with the ice melting effect resolver 4 through a socket cable, and an excitation signal and a feedback signal of the ice melting sensor 2 are transmitted; the ice-melting effect resolver 3 is electrically connected with the ice-melting sensor 2 and the icing detection controller 5 through a socket cable, transmits an excitation signal and a feedback signal of the ice-melting sensor 2, and transmits ice-melting information to the icing detection controller 5 through a 429 signal. The icing detection controller 5 is electrically connected with the icing sensor 1, the temperature sensor 3 and the ice-melting effect resolver 4 through socket cables. And transmits the working state of the system and the information of icing and ice melting to the upper computer through 429 signals.
Further, the icing sensor 1 comprises a vibrator assembly 1-1, a driving circuit assembly 1-2, a heater 1-3, a connector 1-4, a base 1-5 and a rear cover 1-6. The vibrator assembly 1-1 and the heater 1-3 are arranged on the base 1-5, the driving circuit assembly 1-2 and the connector 1-4 are arranged on the rear cover 1-6, and the driving circuit assembly 1-2, the connector 1-4 and the vibrator assembly 1-1 are electrically connected.
Further, the ice melting sensor 2 comprises a vibrating head component 2-1, a regulator component 2-2 and a sealing welding socket 2-3. The vibrating head assembly 2-1 and the sealing welding socket 2-3 are connected with the regulator assembly 2-2 in a welding mode to form an integrated sealed ice melting sensor.
Further, the temperature sensor 3 comprises a sensing element 3-1, a connector 3-2, a base 3-3 and a housing 3-4. The sensing element 3-1 is arranged on the base 3-3, and is protected by an outer cover 3-4, and the sensing element 3-1 is connected with the connector 3-2.
Further, the ice melting effect solver 4 comprises a power circuit component 4-1, an alternating current circuit component 4-2, a single chip circuit component 4-3, a base 4-4, a cover 4-5 and a connector 4-6. The power circuit component 4-1, the alternating current circuit component 4-2 and the single chip circuit component 4-3 are arranged on the base 4-4 through pillars, an outer cover 4-5 is used for protecting an internal circuit outside, and the power circuit component 4-1, the alternating current circuit component 4-2 and the single chip circuit component 4-3 are connected with the connector 4-6.
Further, the icing detection controller 5 comprises a power supply driving circuit component 5-1, a signal processing circuit component 5-2, a base 5-3, a rear cover 5-4 and a connector 5-5. The power driving circuit component 5-1 and the signal processing circuit component 5-2 are arranged on the base 5-3 through a support, the internal circuit is protected by using a rear cover 5-4 outside, and the power driving circuit component 5-1 and the signal processing circuit component 5-2 are connected with the connector 5-5.
Further, the power supply driving circuit assembly 5-1 supplies a heating voltage to the heater 1-3, supplies a power supply signal to the driving circuit assembly 1-2, and the driving circuit assembly 1-2 supplies an excitation signal to the vibrator assembly 1-1, and converts the received feedback signal into a frequency signal receivable by the signal processing circuit assembly 5-2. The alternating current circuit component 4-2 provides a voltage excitation signal for the vibration head component 2-1, the vibration head component 2-1 receives the excitation signal, the vibration head component is processed by the regulator component 2-2 and the vibration pickup 2-3, a feedback signal is provided for the alternating current circuit component 4-2, and the alternating current circuit component 4-2 converts the feedback signal into a frequency signal which can be received by the single chip microcomputer circuit component 4-3 after processing. After the single chip circuit assembly 4-3 resolves the frequency signals of the four ice melting sensors 4, the ice melting information, the ice melting effect resolving device 4 and the working states of the ice melting sensors 2 are transmitted to the signal processing circuit assembly 5-2 through 429 signals. The power supply driving circuit assembly 5-1 provides a voltage signal to the temperature sensor 3, and the temperature sensor 3 provides a temperature signal to the signal processing circuit assembly 5-2. The signal processing circuit component 5-2 receives the melting and thawing signal, the frequency signal and the temperature signal, and provides a melting and thawing warning signal, an icing warning signal and a system working state signal for the upper computer.
Further, the icing sensor 1 is based on an electromagnetic resonance principle, and a vibrator component of the icing sensor generates oscillation and reaches stability when meeting a certain amplitude condition under the action of an internal excitation signal and an electromagnetic system, wherein the vibration frequency at the moment is the working frequency of the detector. When ice is deposited on the vibrator, the vibration frequency is reduced, and the ice is judged according to the vibration frequency.
Further, the icing sensor 1 is of an outer leaking rod type structure, is arranged at the front section of the machine body, is respectively arranged at the left side and the right side of the machine head, and senses the thickness of an ice layer through a vibrator assembly extending out of the machine body.
Further, the ice-melting sensor 2 is based on the principle that the vibration frequency of the sensor is different along with the thickness of the ice layer on the vibration diaphragm, and the vibration frequency is reduced when ice is deposited on the vibration head on the basis of different frequencies, so that the ice-melting sensor is used as a basis for judging icing.
Further, the ice melting sensor 2 is of an embedded flat die structure, and is arranged on the lower surfaces of the front edges of the outer wings in the left side and the right side and the upper surfaces of the front edges of the horizontal rear wings in the left side and the right side aiming at the areas where the conveyor structure is easy to freeze, so that the icing condition of the outer wings and the horizontal rear wings in the conveyor can be effectively detected.
Further, the temperature sensor 3 provides a temperature signal by using the relation between the platinum resistor and the temperature. When the temperature is higher than a certain environmental temperature, the system icing alarm signal is blocked, and the function of assisting in judging the icing environment is achieved.
Furthermore, the temperature sensor 3 is of an embedded flat die structure, a sensitive element 3-1 of the temperature sensor is protected by an outer cover 3-4, and the most part of the outer leakage and the mounting plane have a protrusion with the diameter not larger than 5mm, so that the temperature sensor can be mounted at any part of the wing skin.
Further, the ice-melting effect resolver 4 is to provide an oscillation excitation signal for the ice-melting sensors on one hand, and to switch frequency signals, which are output by the four ice-melting sensors and change along with the thickness of an ice layer, for frequency discrimination on the other hand, when the frequency reaches the frequency discrimination point of the resolver, the resolver sends an 'ice-containing' instruction to the icing detection controller through a 429 bus signal in the resolver, and otherwise, sends an 'ice-free' instruction.
Further, the icing detection controller 5 collects frequency signals of the icing sensor, and in the process of reducing the frequency, when the ice layer reaches a certain thickness, the icing rate can be calculated, and meanwhile, heating signals of the icing sensor are sent out, so that the icing detection is carried out again. The icing intensity and icing warning information are given to the airplane through the 429 signal, and meanwhile, the ice melting warning signal is transmitted to the airplane.
Furthermore, the icing detection system can detect the icing condition of the nose and can effectively detect the icing condition of the middle and outer wings and the horizontal tail wing of the conveyor aiming at the structure of the medium and large-sized conveyor. Meanwhile, only the icing detection controller and the upper computer in the icing detection system transmit icing information, and the information is transmitted clearly.
The icing detection system mainly has the functions of detecting whether the airplane is in an icing cloud area and icing strength and outputting a detection result, and detecting the icing condition of the wings and the empennage and outputting the detection result.
The temperature sensor provides a temperature signal using the relationship between the platinum resistance and temperature. When the temperature is higher than a certain environmental temperature, the system icing alarm signal is blocked, and the function of assisting in judging the icing environment is achieved.
The detector is installed at the front section of the machine body, the thickness of an ice layer is sensed through a vibrating head assembly extending out of the machine body, a vibrating part of the detector generates oscillation under the action of an internal excitation signal and an electromagnetic system when certain amplitude conditions are met and is stable, and the vibration frequency at the moment is the working frequency of the detector. When ice is deposited on the vibrating head, the vibration frequency is reduced and transmitted to the controller, and in the process of reducing the frequency, when the ice layer reaches a certain thickness, the controller can calculate the icing rate, and simultaneously starts the detector to heat, gives icing strength and icing warning information to the airplane through a 429 signal, and outputs a hard-line icing warning signal.
The ice-melting effect solver and 4 ice-melting sensors arranged on the wings and the empennage form an ice-melting effect solver, the ice-melting effect solver provides oscillation excitation signals for the ice-melting sensors on one hand, and on the other hand, frequency signals which are output by the 4 ice-melting sensors and change along with the thickness of an ice layer are respectively switched to carry out frequency discrimination, when the frequency reaches the discrimination point of the solver, the ice-melting effect solver sends the icing condition on the wings and the empennage to the controller through 429 bus signals inside the ice-melting effect solver, and the icing condition is used as the basis for the controller to judge the deicing effect of the aircraft environmental control system. The controller sends out ice melting alarm signals through the hard wire and the 429 bus.
It will be understood by those skilled in the art that, unless otherwise defined, all terms (including technical and scientific terms) used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. It will be further understood that terms, such as those defined in commonly used dictionaries, should be interpreted as having a meaning that is consistent with their meaning in the context of the prior art and will not be interpreted in an idealized or overly formal sense unless expressly so defined herein. The above-mentioned embodiments, objects, technical solutions and advantages of the present invention are further described in detail, it should be understood that the above-mentioned embodiments are only illustrative of the present invention and are not intended to limit the present invention, and any modifications, equivalents, improvements and the like made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (10)
1. An icing detection system for a medium or large sized transport, characterized by: the ice melting system comprises two icing sensors, four ice melting sensors, a temperature sensor, an ice melting effect resolver and an icing detection controller; the icing sensor is electrically connected with the icing detection controller through a socket cable, and transmits a frequency signal, a power supply and a heating signal; the temperature sensor is electrically connected with the icing detection controller through a socket cable to transmit a power supply signal and a temperature signal; the ice melting sensor and the ice melting effect resolver are electrically connected through a socket cable, and an excitation signal and a feedback signal of the ice melting sensor are transmitted; the ice-melting effect resolver is electrically connected with the ice-melting sensor and the icing detection controller through a socket cable, transmits an excitation signal and a feedback signal of the ice-melting sensor, and transmits ice-melting information to the icing detection controller through a 429 signal; the icing detection controller is electrically connected with the icing sensor, the temperature sensor and the ice-melting effect resolver through socket cables; and transmits the working state of the system and the information of icing and ice melting to the upper computer through 429 signals.
2. An icing detection system for a medium or large sized transport aircraft according to claim 1, characterized in that: the icing sensor comprises a vibrator component, a driving circuit component, a heater, a connector, a base and a rear cover; the vibrator subassembly and the heater install on the base, drive circuit subassembly and connector install on the back lid, drive circuit subassembly and connector, vibrator subassembly all have the electrical connection relation.
3. An icing detection system for a medium or large sized transport aircraft according to claim 1, characterized in that: the ice melting sensor comprises a vibrating head assembly, a regulator assembly and a sealing welding socket; the vibrating head assembly and the seal welding socket are connected with the regulator assembly in a welding mode to form the integrally sealed ice melting sensor.
4. An icing detection system for a medium or large sized transport aircraft according to claim 1, characterized in that: the temperature sensor comprises a sensitive element, a connector, a base and an outer cover; the sensitive element is arranged on the base, is protected by the outer cover and is connected with the connector.
5. An icing detection system for a medium or large sized transport aircraft according to claim 1, characterized in that: the ice melting effect solver comprises a power circuit component, an alternating-current and amplifying circuit component, a single chip circuit component, a base, an outer cover and a connector; the power supply circuit assembly, the cross-amplifying circuit assembly and the single chip microcomputer circuit assembly are arranged on the base through the supporting columns, an outer cover is used for protecting an internal circuit outside, and the power supply circuit assembly, the cross-amplifying circuit assembly and the single chip microcomputer circuit assembly are connected with the connector.
6. An icing detection system for a medium or large sized transport aircraft according to claim 1, characterized in that: the icing detection controller comprises a power supply driving circuit component, a signal processing circuit component, a base, a rear cover and a connector; the power driving circuit assembly and the signal processing circuit assembly are arranged on the base through the supporting columns, the internal circuit is protected by the rear cover outside the base, and the power driving circuit assembly and the signal processing circuit assembly are connected with the connector.
7. An icing detection system for a medium or large sized transport aircraft according to claim 1, characterized in that: the power supply driving circuit component provides heating voltage for the heater and provides power supply signals for the driving circuit component, the driving circuit component provides excitation signals for the vibrator component, and converts received feedback signals into frequency signals which can be received by the signal processing circuit component; the cross-amplifying circuit component provides a voltage excitation signal for the vibrating head component, the vibrating head component provides a feedback signal for the cross-amplifying circuit component after receiving the excitation signal and processing the excitation signal by the regulator component and the vibration pickup, and the cross-amplifying circuit component converts the feedback signal into a frequency signal which can be received by the single chip circuit component after processing the feedback signal; after the single chip circuit assembly resolves the frequency signals of the four ice melting sensors, the working states of ice melting information, the ice melting effect resolver and the ice melting sensors are transmitted to the signal processing circuit assembly through 429 signals; the power supply driving circuit component provides a voltage signal for the temperature sensor, and the temperature sensor provides a temperature signal for the signal processing circuit component; the signal processing circuit component receives the ice melting signal, the frequency signal and the temperature signal and provides an ice melting warning signal, an icing warning signal and a system working state signal for the upper computer.
8. An icing detection system for a medium or large sized transport aircraft according to claim 1, characterized in that: the icing sensor structure is an outer leaking rod type structure.
9. An icing detection system for a medium or large sized transport aircraft according to claim 1, characterized in that: the ice melting sensor structure is an embedded flat-die structure.
10. An icing detection system for a medium or large sized transport aircraft according to claim 1, characterized in that: the temperature sensor structure is an embedded flat die structure, a sensitive element of the temperature sensor structure is protected by an outer cover, and a bulge with the maximum leakage part and the mounting plane being not more than 5mm exists.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202111612257.9A CN114476080A (en) | 2021-12-27 | 2021-12-27 | Icing detection system for medium and large-sized transport plane |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202111612257.9A CN114476080A (en) | 2021-12-27 | 2021-12-27 | Icing detection system for medium and large-sized transport plane |
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| US20040231410A1 (en) * | 2003-03-10 | 2004-11-25 | Marc Bernard | Large spectrum icing conditions detector for optimization of aircraft safety |
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| US20040231410A1 (en) * | 2003-03-10 | 2004-11-25 | Marc Bernard | Large spectrum icing conditions detector for optimization of aircraft safety |
| US20150115105A1 (en) * | 2013-10-24 | 2015-04-30 | The Regents Of The University Of Michigan | Aircraft icing detector |
| CN108562327A (en) * | 2018-03-16 | 2018-09-21 | 陕西飞机工业（集团）有限公司 | A kind of aircraft icing detection system test equipment |
| KR101964981B1 (en) * | 2019-01-24 | 2019-08-13 | 주식회사 에그 (Egg) | apparatus for detecting ice-formation |
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