Handheld comprehensive photoelectric tester and testing method

Abstract

The invention discloses a handheld comprehensive photoelectric tester and a testing method. The handheld comprehensive photoelectric tester comprises a 12V power supply control module, a PWM modulation signal generator, a 254nm ultraviolet light source, a 980nm frequency modulation laser module, a 10.525 Ghz centimeter wave signal generator and a handheld shell. The tester and the test method have the characteristics of small size and high speed, and are suitable for functional tests of laser alarm sensors, ultraviolet tail flame detectors, ultraviolet flame sensors and centimeter wave alarm components. By using the tester and the testing method, the maintenance and detection efficiency of aviation equipment can be improved, field detection is facilitated, and the training and combat capabilities are improved.

Description

Technical Field

[0001] The present invention relates to the field of aviation equipment maintenance and inspection, and in particular to a handheld integrated photoelectric tester. Background Art

[0002] At present, laser warning devices, ultraviolet tail flame detectors, ultraviolet flame sensors, and centimeter wave warning components are installed on a variety of aviation equipment. When ground crews perform maintenance, they rely on traditional methods to perform functional tests on the above four sensors, which require the use of laser rangefinders / illuminators, mercury lamp light sources, and radar signal simulators, which have the disadvantages of large size, long detection time, and high price, which is not conducive to the rapid maintenance and dispatch of aviation equipment. Summary of the invention

[0003] The technical problem to be solved by the present invention is to provide a handheld tester capable of detecting a laser warning device, an ultraviolet tail flame detector, an ultraviolet flame sensor and a centimeter wave warning component.

[0004] In order to solve the above problems, the technical solution adopted by the present invention is:

[0005] A handheld integrated photoelectric tester comprises a 12V power supply control module, a PWM modulation signal generator, a 254nm ultraviolet light source, a 980nm frequency modulation laser module, a 10.525Ghz centimeter wave signal generator, and a handheld shell.

[0006] The 12V power supply control module includes: a 12V rechargeable lithium battery for providing power, a step-down circuit for converting 12V to 5V, and a switch circuit for controlling the operation of each module.

[0007] The 980nm frequency modulated laser module comprises: a TTL circuit for driving a 980nm laser diode and a laser diode for generating 980nm laser light. The TTL circuit is controlled by a self-reset button.

[0008] The tester of the present invention comprises a PWM modulation signal generator for generating a 5V rectangular wave with a frequency of 1-30kHz and a duty cycle of 1-100%, inputting the TTL drive circuit to drive a 980nm laser diode to emit a pulse signal.

[0009] The tester of the present invention comprises a 254nm ultraviolet light source for generating a continuous ultraviolet irradiation signal with a power of 3W and a wavelength of 254nm.

[0010] The test method of the present invention is as follows: use the tester to generate a 980nm laser pulse signal, aim it at the optical window of the laser warning sensor, observe the onboard warning system page at a distance of 3m, check the wavelength, frequency, and azimuth of the warning laser, and it is qualified if the error with the test laser signal is within 5% in wavelength, 2% in frequency, and 5° in azimuth. Use the tester to generate 254nm ultraviolet light, aim it at the ultraviolet tail flame detector and the ultraviolet flame sensor, observe the onboard warning system prompt, and it is qualified if an alarm is generated and the location matches the test location. Use the tester to generate a 10.525GHz centimeter wave signal, aim it at the centimeter wave warning component, and observe the onboard warning system to generate an alarm signal with a repetition frequency error of 5% and an azimuth error of 5°.

[0011] The beneficial effects of using the tester and the test method described in the present invention are: the present invention realizes the functional test of four sensors, namely, a laser warning device, an ultraviolet tail flame detector, an ultraviolet flame sensor, and a centimeter wave warning component; the size of the handheld tester is greatly reduced and the price is low; the method can quickly test the sensor function, greatly improving the efficiency of aviation equipment maintenance and inspection, facilitating field inspection, and improving training and combat capabilities. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] The present invention will be further described below in conjunction with the accompanying drawings and specific embodiments.

[0013] Figure 1 It is the schematic diagram of a handheld integrated photoelectric tester.

[0014] Figure 2 This is the structural diagram of a handheld comprehensive photoelectric tester.

[0015] In the figure: 1-12V power control module; 2-PWM modulation signal generator; 3-254nm ultraviolet light source; 4-980nm frequency modulated laser module; 5-10.525Ghz centimeter wave signal generator; 6-handheld housing. DETAILED DESCRIPTION

[0016] like Figure 1As shown, the handheld integrated photoelectric tester consists of a 12V power supply control module, a PWM modulation signal generator, a 254nm ultraviolet light source, a 980nm frequency-modulated laser module, a 10.525Ghz centimeter wave signal generator, and a handheld shell. It is used by maintenance personnel to perform ground power-on tests on aviation equipment laser warning devices, ultraviolet tail flame detectors, ultraviolet flame sensors, and centimeter wave warning components. Maintenance personnel hold the tester and use the tester to generate a 980nm laser pulse signal, aim at the optical window of the laser warning sensor, observe the onboard warning system page at a distance of 3m, check the wavelength, frequency, and azimuth of the warning laser, and pass the test if the error with the test laser signal is within 5% of the wavelength, 2% of the frequency, and 5° of the azimuth error. Use the tester to generate 254nm ultraviolet light, aim at the ultraviolet tail flame detector and ultraviolet flame sensor, observe the onboard warning system prompt, and pass if an alarm is generated and the location matches the test location. Use a tester to generate a 10.525GHz centimeter-wave signal, aim it at the centimeter-wave alarm component, and observe the alarm signal generated by the onboard alarm system. The alarm signal is qualified if its repetition frequency error is within 5% and its azimuth error is within 5°.

[0017] The ultraviolet light source is composed of a 254nm ultraviolet lamp tube and a 12V to 10V step-down driver.

[0018] The handheld housing window is provided with a circular optical glass lens.

Claims

1. A handheld comprehensive photoelectric tester and a test method, characterized in that The invention comprises a 12V power supply control module (1), a PWM modulation signal generator (2), a 254nm ultraviolet light source (3), a 980nm frequency-modulated laser module (4), a 10.525Ghz centimeter wave signal generator (5), and a modular housing (6). The 12V power supply control module (1), the PWM modulation signal generator (2), the 254nm ultraviolet light source (3), the 980nm frequency-modulated laser module (4), and the 10.525Ghz centimeter wave signal source (5) are installed in a handheld housing (6).

2. A handheld integrated photoelectric tester according to claim 1, characterized in that The 980nm frequency modulated laser module (4) is modulated by a PWM signal generated by a PWM modulation signal generator (3), with a modulation frequency of 1 to 30 kHz and a duty cycle of 1 to 100%.

3. A test method for a handheld integrated photoelectric tester, characterized in that The target sensor is illuminated by the 980nm laser signal generated by the tester, and the error between the laser wavelength, frequency, pulse width reported by the onboard warning system and the tester is observed.

4. A handheld integrated photoelectric tester testing method according to claim 3, characterized in that The target sensor is illuminated by the 254nm ultraviolet light generated by the tester, and the ultraviolet tail flame signal and fire alarm signal reported by the onboard warning system are observed.

5. A handheld integrated photoelectric tester testing method according to claim 3, characterized in that The target sensor is illuminated by the 10.525Ghz centimeter wave signal generated by the tester, and the radar signal reported by the onboard warning system is observed.

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