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Vibration-type laser energy detector

A laser energy, vibration technology, applied in the field of energy detectors, can solve the problems of high cost, inapplicability, slow response speed, etc.

Inactive Publication Date: 2016-01-06
刘张骞
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Problems solved by technology

For high-energy Q-switched pulsed lasers, the photodetector needs to use an attenuator to sufficiently attenuate the light intensity to detect, and the cost is high; the photo-thermal-electric detector has a slow response speed and is not suitable for real-time Probing the energy of each output pulse of a pulsed laser

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  • Vibration-type laser energy detector

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Embodiment Construction

[0023] The following describes the present invention in further detail with reference to the drawings and specific embodiments, without limiting the scope of implementation of the present invention to this.

[0024] Such as figure 1 As shown, the vibration type laser energy detector of this embodiment includes a sealed housing 1, a vibrating plate for receiving laser irradiation, an output unit (not shown in the figure), and the housing 1 is provided with a detection Chamber 3. The incident window 4 for laser injection into the detection chamber 3, the vibrating plate 2 is an elastic sheet that can vibrate under laser strikes, and the vibrating plate 2 is provided in the detection chamber 3 corresponding to the At the incident window 4, the detection chamber 3 is provided with a detection device 5 for detecting the amplitude of the vibrating plate 2, and the output end of the detection device 5 is connected to the output unit. When the present invention is used, the laser pulse i...

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Abstract

The invention relates to the technical field of energy detectors, and particularly relates to a vibration-type laser energy detector, which comprises a sealed shell, a vibration sheet for receiving laser radiation, and an output unit, wherein the shell is provided with a detection bin and an entrance window for enabling the laser to enter the detection bin; the vibration sheet is an elastic thin sheet which can be vibrated under laser hitting; the vibration sheet is arranged inside the detection bin corresponding to the entrance window; the detection bin is internally provided with a detection device for detecting amplitude of the vibration sheet; and the output end of the detection device is connected with the output unit. The vibration sheet is vibrated under effects of laser pulses, the magnitude of the amplitude and the magnitude of the laser energy have a corresponding relation, and after calibration, the amplitude of the vibration sheet can be detected by the detection device, and the energy of the laser pulses can thus be obtained through conversion.

Description

Technical field [0001] The invention relates to the technical field of energy detectors, in particular to a vibration type laser energy detector. Background technique [0002] Laser energy detectors are commonly used equipment when using lasers. The detection materials used in commonly used laser energy detectors are mainly pyroelectric materials and photoelectric materials. Among them, thermoelectric materials absorb light energy and convert them into heat, causing changes in physical quantities such as electrical resistance and generating electrical signals; while optoelectronic materials directly convert light energy into photo-generated carriers to form voltage or current signals. Generally, the detectors using pyroelectric materials are called photo-pyroelectric detectors, and the detectors using photoelectric materials are called photodetectors. For high-energy Q-switched pulsed lasers, the photodetector needs to use an attenuator to sufficiently attenuate the light inten...

Claims

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Application Information

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IPC IPC(8): G01J1/56G01J1/04
Inventor 刘张骞徐学军吕俊王琦文毅何立军
Owner 刘张骞
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