CN213517407U - Electric heating assembly detection device for airplane windshield glass - Google Patents
Electric heating assembly detection device for airplane windshield glass Download PDFInfo
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- CN213517407U CN213517407U CN202022025825.2U CN202022025825U CN213517407U CN 213517407 U CN213517407 U CN 213517407U CN 202022025825 U CN202022025825 U CN 202022025825U CN 213517407 U CN213517407 U CN 213517407U
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Abstract
The utility model provides an aircraft windshield electricity heating assembly detection device belongs to aviation product windshield heating system's automated inspection field. The device includes: the main circuit board is respectively connected with a human-computer interaction device, a standard interface, a communication module and a power supply module; the human-computer interaction device is used for inputting and displaying information; the standard interface can be connected with an electric heating assembly of the airplane windshield glass; the communication module is used for communicating the main circuit board with the background computer; the power supply module supplies power to the main circuit board. Utilize the utility model discloses can detect the condition between the ground connection condition of 6 wires and the wire simultaneously, can accurately judge windshield's situation, for avoiding windshield to burst provides accurate foundation, can reduce airline workers' intensity of labour, reduce unnecessary operating error simultaneously, utilize the utility model discloses can upload data and carry out the data contrast, and then help the airline in time master the safe state of aircraft windshield.
Description
Technical Field
The utility model belongs to aviation product windshield heating system's automated inspection field, concretely relates to aircraft windshield electricity heating assembly detection device.
Background
During the use of vehicles such as aircrafts, icing or fogging on the surface of aircraft glass is common due to the difference between the environmental conditions inside and outside the aircraft. At present, a more effective and faster method is to use a resistance thermal defogging method, an electric heating assembly for airplane windshield glass is used in the market at present to heat the windshield glass, and the assembly mainly utilizes a copper wire or a copper-plated metal resistance wire to heat so as to achieve the purposes of deicing and defogging.
In the long-term service process of the aircraft, the weather-tight rubber at the edge of the glass is contacted with external high-speed airflow, so that cavitation damage is easily generated, and external water vapor is caused to invade the electric heating system. The weather-tight rubber can also age or crack in the service process, so that water vapor is invaded. In addition, under the action of high and low voltage or vibration load, the heating wire in the electric heating assembly of the aircraft windshield glass is easy to wear and break, so that the electric insulation is damaged. When the electric heating assembly of the airplane windshield glass is subjected to water vapor invasion and insulation damage, electric arc damage easily occurs to cause the breakage of the windshield glass, and under the condition, the airplane must return in time, otherwise serious accidents will occur. In recent years, windshield splits and even flying-off events caused by a plurality of electric arcs occur at home and abroad, and the flight safety is seriously influenced.
Specifically, the electric heating assembly is provided with 6 wires, the numbers of the 6 wires are A, B, C, D, E and F respectively, wherein A and B are heating wires, namely power output wires, the alternating current of 115V and 400HZ can be provided for the electric heating assembly, and the power is about 2000W. The other 4, C-F wires are sensor wires that are connected to the thermocouple sensor, these 4 wires do not have any voltage and power output. The wires a and B are connected inside the glass heating layer through the heating resistor film, and if a voltage is applied between a and B, a loop can naturally be formed. The CDEF four conductors are themselves looped. The conductors a and B and C-F are themselves non-conductive and should not form a loop, but may form a loop if a fault occurs.
The scheme for detecting the electric heating component of the windshield glass of the airplane is provided for airplane manufacturers such as airplane manufacturers, wave sound manufacturers, air passengers manufacturers and the like, and the abnormity of the electric heating component of the windshield glass of the airplane can be found out in time. The glass manufacturer requires the windshield glass to detect the current by using 500V direct current, measuring the insulation resistance between the heating wire and the ground wire and measuring the leakage current between the heating wire and the ground wire by using 1500V alternating current.
The measuring personnel are crew personnel, the time for detecting the windshield is mostly the detection time period after the night navigation, in the measuring process, the plug of the windshield glass electric heating assembly is opened to measure the wires one by one, and the used tools are a multimeter and a megger. The time for each set of test data is 1 minute, and the 6 wires described above need to be tested.
However, the above working method has several major problems, which are as follows:
1) first, since 6 wires are connected to the inside of the rubber and glass of the windshield glass, the occurrence of an arc between the wires cannot be completely avoided by detecting only the insulation of the wires to the ground, and therefore, it is necessary to detect the insulation of the 6 wires to the ground (the potential of the ground can be taken into the aircraft housing). ) Meanwhile, the insulativity among the 6 wires needs to be detected, so that the labor intensity of workers in night shifts is high, and fatigue errors are easy to form.
2) Secondly, when the universal meter and the rocking meter are used for measurement, the contact pins are used for contacting the contacts of 6 leads, the size of the contact area is random, and the contact force is uncontrollable. The wiring state is random and inaccurate in measurement result.
3) After the measurement result is obtained, the data cannot be effectively managed and supervised, the detection data cannot be effectively processed, and the measurement data cannot be compared transversely or longitudinally.
4) If the operation is finished according to the traditional method, the whole process is complicated, the working pressure of the night flight airline workers is higher, and the operation is almost impossible.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to solve the difficult problem that exists among the above-mentioned prior art, provide an aircraft windshield electricity subassembly detection device that heats, can detect the ground connection condition of all wires in the windshield electricity subassembly that heats simultaneously and the insulating condition between the wire to can upload the detection data, reduce airline workers' intensity of labour, improve simultaneously and detect the accuracy.
The utility model discloses a realize through following technical scheme:
the utility model provides an aircraft windshield electricity subassembly detection device that heats, aircraft windshield electricity subassembly detection device that heats includes: the main circuit board is respectively connected with a human-computer interaction device, a standard interface, a communication module and a power supply module;
the human-computer interaction device is used for inputting and displaying information;
the standard interface can be connected with an electric heating assembly of the airplane windshield glass;
the communication module is used for communicating the main circuit board with the background computer;
the power supply module supplies power to the main circuit board.
The utility model discloses a further improvement lies in, main circuit board includes: the microprocessor, and a clock module, a storage module, a gate control circuit, an overcurrent protector, an amplifying circuit and an AD conversion circuit which are respectively connected with the microprocessor;
meanwhile, the gate control circuit is respectively connected with the power supply module and the standard interface;
the overcurrent protector is respectively connected with the gate control circuit and the amplifying circuit;
the amplifying circuit is connected with the AD conversion circuit.
The utility model discloses a further improvement lies in, gate control circuit's earthing terminal ground connection is followed simultaneously six terminals are drawn forth to gate control circuit's six pins, and six terminals can be connected with the six wires on the electric subassembly that heats of aircraft windshield respectively through standard interface.
The utility model discloses a further improvement lies in, human-computer interaction device adopts liquid crystal display and button, perhaps adopts the touch-sensitive screen.
The utility model discloses a further improvement lies in, communication module adopts 4G communication module or 5G communication module.
The utility model discloses a further improvement lies in, standard interface adopts standard Y50EX-1808TK type socket.
The utility model discloses a further improvement lies in, power module includes: a power supply and power supply conversion module;
the power conversion module can output 200-1000V direct current or 1000-2000V alternating current.
Compared with the prior art, the beneficial effects of the utility model are that:
1) utilize the utility model discloses can detect the ground connection condition of 6 wires simultaneously and the condition between the wire, can accurately judge windshield's situation, provide accurate foundation for avoiding windshield to burst.
2) The labor intensity of airline workers can be reduced, and unnecessary operation errors are reduced.
3) Utilize the utility model discloses can upload data and carry out the data contrast, and then help the airline to in time master the safe state of aircraft windshield.
Drawings
FIG. 1 is a schematic structural view of the detecting device for an electric heating assembly of an aircraft windshield of the present invention;
FIG. 2 is a schematic structural view of a main circuit board in the detecting device for an electric heating assembly of an aircraft windshield of the present invention;
FIG. 3 is an information transfer diagram of the aircraft windshield electrical heating assembly detection device of the present invention and a background support computer or system;
figure 4 backstage computer utilizes on each place the utility model discloses data that aircraft windshield electricity heated subassembly detection device and sent carry out the analysis the schematic diagram.
Detailed Description
The invention is described in further detail below with reference to the accompanying drawings:
the utility model provides a be used for electric subassembly detection device that heats of aircraft windshield, as shown in fig. 1, including main circuit board 1 and respectively rather than the man-machine interaction device 2, standard interface 3, communication module 5, the power module 6 of being connected. The standard interface 3 is capable of being connected to an aircraft windscreen electrical warming assembly 4 on the aircraft.
The man-machine interaction device 2 can adopt various existing display screens and keys or adopt an existing touch screen.
The communication module 5 can adopt various existing communication modules, such as a 4G or 5G communication module, the communication module 5 can transmit the detection data obtained by the main circuit board 1 to a background data center, and the background can manage the service life data of the same windshield glass.
The power supply module 6 includes a power supply and a power supply conversion module, which are all existing products and are not described herein again. The power supply module 6 supplies power in two ways, the first is 200-1000V direct current, and the second is 1000-2000V alternating current. The power supply of the ground power supply vehicle can be adopted, namely 115V 400HZ alternating current is used for supplying power, and 200-voltage 1000V direct current or 1000-voltage 2000V alternating current is output through the power supply transformation module. Or the power supply is self-contained, namely 24V battery power supply, and 200-1000V direct current or 1000-2000V alternating current is output through the power conversion module. The direct current of 200-1000V is used for measuring the resistance (detecting the insulation resistance), and specifically, the insulation between a lead and a ground wire, the insulation between the lead and the lead, particularly the insulation between a power supply line and a sensor line are measured. The alternating current of 1000-2000V is used for measuring the impedance (detecting the leakage current), and particularly, the impedance between a power supply line and a sensor line and between a lead and a ground line is measured.
As shown in fig. 2, the main circuit board 1 includes: the microprocessor 101, and the clock module 107, the memory module 102, the gating circuit 106, the over-current protector 105, the amplifying circuit 104 and the AD converting circuit 103 respectively connected thereto may be implemented by existing devices, for example, the clock module 4 may be implemented by an existing crystal oscillator, which is capable of providing a clock frequency for the microprocessor. Overcurrent protector 105 adopts existing equipment, can avoid outside to overflow and strike the utility model discloses an equipment.
The pins of the microprocessors produced by different microprocessor manufacturers are different, and meanwhile, in order to enable a user to use the microprocessors conveniently, the microprocessor manufacturers generally provide a plurality of groups of selectable connections, such as power interfaces, 4 or more alternative interfaces, and also provide a plurality of channels for AD conversion and alternative, such as an STM32 chip, 176 pins and interfaces are provided, and most of the interfaces can be defined repeatedly.
The power supply module 6, the gate control unit 106, the human-computer interaction device 2, the clock unit 107, the communication module 5, the storage module 102, the overcurrent protector 105, the amplification circuit 104 and the AD conversion circuit 103 are respectively connected with corresponding pins on the microprocessor 101, and specific connection pins are determined according to the pin definition of the selected microprocessor. For example, in a microprocessor, the power supply pin is generally designated as VCC or GND, and the power supply module 6 may be connected to the power supply pin of the microprocessor 101.
Meanwhile, the power supply module 6 is connected with a gate control circuit 106; the overcurrent protector 105 is respectively connected with the gate control circuit 106 and the amplifying circuit 104, and the amplifying circuit 104 is connected with the AD conversion circuit 103. The connection modes are all the existing connection modes, and are not described in detail herein.
And the grounding end of the gate control circuit 106 is grounded, 6 terminals are led out from 6 pins of the gate control circuit, the 6 terminals are connected with a standard interface 3, and the 6 terminals can be respectively connected with six leads A, B, C, D, E and F in the electric heating assembly through the standard interface. The gate control circuit 106 is a conventional device, which is a digital circuit for controlling the conduction relationship. The selective conduction of 6 terminals is realized according to the digital signals sent by the microprocessor 101, so that the selective conduction of the six A-F wires is realized.
The method for detecting the electric heating assembly of the airplane windshield glass by using the device for detecting the electric heating assembly of the airplane windshield glass comprises the following steps:
(1) connecting the standard interface 3 with a plug of an electric heating assembly 4 of the airplane windshield glass;
(2) inputting detection information by using the human-computer interaction device 2, wherein the detection information comprises: the mark comprises an airplane number and a windshield mark, wherein the windshield mark can adopt the number or part number of the existing windshield, an SN number, also called a serial number, is composed of letters and numbers, indicates the manufacturer of the windshield, the type of the installed airplane, the installation position and the version number of the windshield, such as STA320-1/2-7-1, indicates the front windshield for an A320 airplane produced by a certain company, and has the version number of-7-1;
(3) after receiving the detection information, the microprocessor 101 invokes a preset detection program from the storage module according to the windshield glass identifier (because the installation sequence of the pins of the heating assemblies of windshield glass products of different manufacturers is different, the detection programs required during testing are also different, the detection programs are all existing programs and are not repeated here), adjusts the output voltage of the power supply module according to the requirements of the detection programs, and then performs detection to obtain measurement data, wherein the measurement data includes impedance and resistance, and specifically includes the following steps:
detecting leakage current to obtain impedance, and detecting insulation resistance to obtain resistance;
the steps of detecting leakage current to obtain impedance are as follows:
the microprocessor 101 controls the power supply module 6 to output 1000-2000V ac power to the gate control circuit 106, and then sequentially switches output voltages to a, B, C, D, E, F, or between a lead and a ground through the gate control circuit 106 according to a clock signal, thereby forming an output channel at a position corresponding to the standard interface.
One end of the gate control circuit 106 is connected to the positive electrode and the negative electrode of the power supply module 6, and the gate control circuit 106 selectively conducts a loop according to the digital signal. For example, when the gate control circuit 106 receives a digital signal sent by the microprocessor 101 to turn on the a wire and the ground (for example, the binary digital signal is 1000001, the first 1 indicates to turn on the a wire, and the last 1 indicates to turn on the ground), the terminal connected to the a wire is turned on, and at the same time, the terminal connected to the ground is turned on, if there is contact or leakage between the a wire and the ground, the voltage of 1000 + 2000V is directly applied between the a wire and the ground, and the impedance value is significantly higher, thereby indicating that the a wire and the ground are faulty. If not, the A wire and the ground wire are not contacted and are disconnected, and the 1000-2000V voltage is equal to that no loop is formed, so that the system is safe.
If a fault mode that the A lead and the B lead are accidentally lapped occurs (for example, two leads which are being measured are completely exposed and immersed in water), extremely high current can be caused no matter leakage current detection or insulation resistance detection is carried out, if the current is directly input into an AD conversion module in the next step, abnormality can be caused, an internal circuit of detection equipment is easily burnt out, and therefore an overcurrent protector is needed to be adopted to protect the AD conversion module, and in this time, the circuit must be cut off as soon as possible, and the situation is recorded.
Specifically, in the detection process, current is input to the overcurrent protector 105 through a gate control circuit, when serious electric leakage occurs, the overcurrent protector 105 is automatically started, an electric leakage signal is sent to the microprocessor, and the microprocessor records an electric leakage serious identifier after receiving the electric leakage signal.
If the electric leakage is not serious (for example, the wire is exposed in a humid environment, or only the insulation skin on the outer side of the wire is damaged, the electric leakage is not serious at this moment, the overcurrent protector cannot be started), the electric leakage current enters the amplifying circuit 104 through the overcurrent protector, and then enters the AD converting circuit 103 through the amplifying circuit 104, the AD converting circuit 103 converts the electric leakage current value (the resistance or impedance value which is obtained by measuring an analog signal is converted into a numerical value through AD conversion) into the electric leakage current value, the electric leakage current value is sent to the microprocessor, the microprocessor compares the value with a set threshold value, if the electric leakage current value is not greater than the set electric leakage current threshold value, the electric leakage current value is marked to be passed and recorded. If the leakage current value is larger than the set leakage current threshold value, the mark does not pass, the leakage current value is recorded, and the impedance can be calculated by utilizing the leakage current value and the voltage value. The leakage current threshold may be set according to actual conditions.
In the detection process, the microprocessor 101 sequentially changes the switch values of the relevant switch bits in the gate control circuit 106 according to a preset detection program and a time signal, realizes leakage current detection between each lead and the ground wire according to preset detection time, obtains a current value from the AD conversion circuit every time leakage current detection is performed, and the microprocessor calculates to obtain impedance by using a voltage value (for example, 1500V) and the current value (which is realized by using the existing calculation method and is not described herein again), for example, after the measurement between the a lead and the ground wire is completed, obtains the current value, and calculates to obtain the impedance between the a lead and the ground wire by using the voltage value (for example, 1500V) and the current value.
The step of detecting the insulation resistance to obtain the resistance is similar to the step of detecting the leakage current to obtain the impedance, except that: firstly, the microprocessor 101 controls the power supply module 6 to output direct current (for example, 500V direct current) to the gate control circuit 106, secondly, the resistance is obtained by calculating the voltage value and the current value (the resistance is obtained by adopting the existing calculating method, which is not described herein again), and thirdly, the current threshold is set. The current threshold value can be set according to actual conditions.
(4) The microprocessor 101 stores the measured data (including the calculated resistance value and the impedance value) into the storage module 102 respectively, and transmits the resistance value and the impedance value to the background computer through the communication module 5, and the data are stored in the data center of the background computer for long-term tracking and evaluation of the data. And meanwhile, the microprocessor displays the measured value on the man-machine interaction device for the field detection personnel to read.
The utility model provides a microprocessor can adopt the STM32 series of the european meaning semiconductor company or the product of the same type (raspberry group, Arduino etc.), through writing the instruction program in advance and inputing to microprocessor, forms miniaturized operating system.
The utility model discloses an automatic detection, analysis and data upload of aircraft windshield electricity subassembly that heats. Meanwhile, the background computer collects and arranges windshield detection data and provides a report of windshield health condition and early warning information through an evaluation algorithm. And on-site operation personnel only need be in the utility model discloses after the device is gone up the input and is detected information, insert the standard interface of instrument in the interface of aircraft windshield electricity heating subassembly, click and begin to detect, can accomplish the detection achievement of all projects automatically.
The utility model discloses utilize microprocessor (Microcontroller Unit, MCU) as control core, input the detection procedure in advance, detect step by step between heating wire and the ground, resistance and leakage current between heating wire and the sensor line realize automatic the detection.
The utility model discloses utilize the clock module to provide the trigger mechanism that detects the timing and jump a set of detection down, for example, microprocessor is according to clock frequency timing, after reaching 1 minute, cuts off current detection circuitry, converts into a set of down, switches over and is realized through microprocessor to gating circuit send signal at specific time, and gating circuit cuts off current route after receiving specific signal, opens next route.
The utility model discloses utilize standard interface connection detection device and windshield's terminal junction box (terminal junction box is connected with 6 wires), avoided the artifical error that detects the production. The standard interface and terminal junction box may be mated with a plug using a standard Y50EX-1808TK style receptacle.
The utility model realizes the digitization of the measuring signal through the analog signal and digital signal conversion module (AD module), and realizes the storage of the detecting data (resistance value, impedance value) by utilizing the storage module; the utility model discloses the storage of microprocessor control data is utilized to the device to detect data and standard data (be the threshold value of setting for) carry out the comparison, judge windshield heating system state in real time, avoid artificial judgement error;
the utility model discloses a microprocessor realizes the storage and the management of data, utilizes touch-sensitive screen or button knob to realize human-computer interaction, takes notes aircraft flight, and the windshield serial number, the part number information is managed and is preserved through microprocessor.
The data acquisition module in fig. 3 refers to all the other components in fig. 2 except the communication module. For on-site data acquisition.
Further, as shown in fig. 3 and 4, the background computer or system records and manages in real time the data and the windshield maintenance records sent from different maintenance bases, the deviation of the analysis data and the normal value, the judgment of windshield fault, the data report and the subsequent report inquiry service are provided:
the utility model discloses equipment passes through communication module with data transmission to backstage computer, and this data includes aircraft number, windshield sign, this time measuring resistance value, impedance value to and check out time and so on. The backstage computer can be according to these data, calculates the condition in the windscreen service cycle, if data surpass the threshold value, the backstage computer can send the warning, and the threshold value that these detected simultaneously also is saved the utility model discloses in the device, the utility model discloses the device can send alarm information to the witnessed inspections personnel. The background computer can also utilize the data to evaluate the windshield and send a real-time windshield health report, and the microprocessor can also evaluate the windshield and send a real-time report. It is sufficient that these evaluation methods, trend analysis, and generated reports are designed according to actual needs, and are not within the scope of the present invention.
The utility model solves the problem of the electric leakage or the insulation reduction of the windshield glass, and avoids the glass breakage caused by the electric arc; the automatic detection equipment with the communication transmission device is adopted to help a flight line engineer to record the resistance value and the impedance value of the windshield glass heating wire, so that long-term monitoring can be realized, and the problem deterioration trend can be found conveniently; the utility model adopts the standard interface to replace the measuring probe, which is beneficial to the standard and unification of the data acquisition; after the standard plug-in connector is adopted, the detection of six wires can be realized, and the labor intensity is saved.
Because the aircraft is regional inequality of standing, the utility model discloses the device is set up at fixed key airport, when the aircraft is standing, if have the detection demand, the utility model discloses the device can be with data upload to the backstage computer when implementing the detection, and the backstage computer can gather the data of same aircraft, judges through threshold value and trend and judges, can judge the data change of the whole service period of windshield better.
The above technical solution is only one embodiment of the present invention, and for those skilled in the art, based on the application method and principle disclosed in the present invention, various modifications or variations can be easily made, and not limited to the method described in the above specific embodiments of the present invention, so that the above described manner is only preferred, and is not restrictive.
Claims (7)
1. The utility model provides an aircraft windshield electricity subassembly detection device that heats which characterized in that: the aircraft windshield electrical heating assembly detection device comprises: the main circuit board is respectively connected with a human-computer interaction device, a standard interface, a communication module and a power supply module;
the human-computer interaction device is used for inputting and displaying information;
the standard interface can be connected with an electric heating assembly of the airplane windshield glass;
the communication module is used for communicating the main circuit board with the background computer;
the power supply module supplies power to the main circuit board.
2. An aircraft windshield electrical heating assembly detection device as claimed in claim 1 wherein: the main circuit board includes: the microprocessor, and a clock module, a storage module, a gate control circuit, an overcurrent protector, an amplifying circuit and an AD conversion circuit which are respectively connected with the microprocessor;
meanwhile, the gate control circuit is respectively connected with the power supply module and the standard interface;
the overcurrent protector is respectively connected with the gate control circuit and the amplifying circuit;
the amplifying circuit is connected with the AD conversion circuit.
3. An aircraft windshield electrical heating assembly detection device as claimed in claim 2 wherein: the ground terminal of the gate control circuit is grounded, six terminals are led out from six pins of the gate control circuit, and the six terminals can be respectively connected with six wires on the electric heating assembly of the airplane windshield glass through standard interfaces.
4. An aircraft windshield electrical heating assembly detection device as claimed in claim 1 wherein: the man-machine interaction device adopts a liquid crystal display screen and a key or adopts a touch screen.
5. An aircraft windshield electrical heating assembly detection device as claimed in claim 1 wherein: the communication module adopts a 4G communication module or a 5G communication module.
6. An aircraft windshield electrical heating assembly detection device as claimed in claim 1 wherein: the standard interface employs a standard Y50EX-1808TK type receptacle.
7. An aircraft windshield electrical heating assembly detection device as claimed in claim 1 wherein: the power supply module includes: a power supply and power supply conversion module;
the power conversion module can output 200-1000V direct current or 1000-2000V alternating current.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022025825.2U CN213517407U (en) | 2020-09-16 | 2020-09-16 | Electric heating assembly detection device for airplane windshield glass |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022025825.2U CN213517407U (en) | 2020-09-16 | 2020-09-16 | Electric heating assembly detection device for airplane windshield glass |
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| CN213517407U true CN213517407U (en) | 2021-06-22 |
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| CN202022025825.2U Active CN213517407U (en) | 2020-09-16 | 2020-09-16 | Electric heating assembly detection device for airplane windshield glass |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114194414A (en) * | 2021-12-27 | 2022-03-18 | 武汉航空仪表有限责任公司 | Heating test system for airplane windshield and data acquisition and processing method |
| CN114264918A (en) * | 2020-09-16 | 2022-04-01 | 柏研时代航发科技(北京)有限公司 | Device and method for detecting electric heating assembly of airplane windshield glass |
-
2020
- 2020-09-16 CN CN202022025825.2U patent/CN213517407U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114264918A (en) * | 2020-09-16 | 2022-04-01 | 柏研时代航发科技(北京)有限公司 | Device and method for detecting electric heating assembly of airplane windshield glass |
| CN114264918B (en) * | 2020-09-16 | 2024-09-24 | 柏研时代航发科技(北京)有限公司 | Device and method for detecting electric heating assembly of aircraft windshield glass |
| CN114194414A (en) * | 2021-12-27 | 2022-03-18 | 武汉航空仪表有限责任公司 | Heating test system for airplane windshield and data acquisition and processing method |
| CN114194414B (en) * | 2021-12-27 | 2023-10-20 | 武汉航空仪表有限责任公司 | Airplane windshield heating test system and data acquisition and processing method |
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