An Immersion Type Total Absorption High Energy Laser Power Energy Meter

Abstract

The invention discloses an immersive total-absorption high-energy laser power energy meter. The energy meter comprises an absorption chamber, a temperature field homogenizer, a current temperature measuring sensor, a housing, a flowmeter, a signal processing system, an electric signal leading wire, a current input and output pipeline, an absorption chamber fixing support, a data acquisition circuit module, a flow field rectifier, a window optical lens, a solid absorption flat plate and a sieve aperture type solid absorption plate. According to the energy meter, through an immersive structuraldesign of the absorption chamber, water fluid and the solid absorption plate immersed in the current are regarded as absorption media of laser together, advantages of a current absorption type energymeter and a solid cavity type energy meter are effectively combined, the restriction of a strong laser damage resistant threshold of an absorbing body material is broken through, the problem of universality of the high-energy laser power energy meter for laser sources of different central wavelengths is solved in an emphasized manner, and the test capability and the measuring accuracy of high-power and high-energy laser are substantially improved by employing means including the design of the temperature field homogenizer, the accurate temperature measurement technology and the specific heat non-linear compensation.

Description

technical field [0001] The invention belongs to the field of high-energy laser power and energy measurement, and in particular relates to an immersion-type total absorption high-energy laser power energy meter, which is suitable for high-energy laser power and energy total absorption measurement. Background technique [0002] Power energy is one of the most critical technical indicators of high-energy lasers, and the measurement of high-energy laser power energy can provide the most important reference for index verification and system performance evaluation in the laser development process. With the rapid development of high-energy laser technology and the wide application of high-energy lasers in the fields of national defense, civil and industrial production, the power and energy of lasers are getting higher and higher, and the power and energy measurement capabilities of high-energy laser power energy meters are proposed. higher requirement. Especially for the high-ener...

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Problems solved by technology

[0003] In order to realize the power and energy measurement of high-energy lasers, solve the problem of the energy meter’s resistance to strong laser damage, break through the limitations of the energy meter in the selection of the measured laser wavelength, and improve the accuracy of energy measurement, the invention provides an immersion type total absorption High Energy Laser Power Energy Meter

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