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Laser energy meter and automatic gearshift method thereof

A laser energy meter and energy technology, applied in the laser field, can solve the problem that the laser energy meter cannot automatically shift gears, etc.

Inactive Publication Date: 2012-06-06
BEIJING GK LASER TECH
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  • Abstract
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Problems solved by technology

[0004] The object of the present invention is to provide a laser energy meter, aiming to solve the problem that the existing laser energy meter cannot automatically shift gears

Method used

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  • Laser energy meter and automatic gearshift method thereof
  • Laser energy meter and automatic gearshift method thereof
  • Laser energy meter and automatic gearshift method thereof

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Embodiment Construction

[0029] figure 1 It is a schematic diagram of the circuit structure of the laser energy meter. The laser energy meter of the present invention includes a DC conversion circuit, an energy probe, a control circuit, a display circuit, a storage circuit and a remote communication interface.

[0030] The DC conversion circuit is connected to the external power supply, and the DC voltage of ±5V is converted by an isolated DC-DC module. These two DC voltages supply power to each part of the laser energy meter, and at the same time supply power to the external energy probe. The functional ground of the internal circuit of the energy meter is isolated from the functional ground of the external power supply, which greatly reduces the interference from the input power supply. The external power supply is a DC power supply with a voltage range of 18V-36V, preferably 24V / 0.5A, which makes it more convenient for users to choose a power supply.

[0031] The energy probe adopts the high-prec...

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Abstract

The invention relates to the laser technology field, specifically relating to a laser energy meter and an automatic gearshift method thereof. The automatic gearshift method comprises the following steps: an energy probe converts collected optical pulse into an electrical pulse signal; a control circuit amplifies the electric pulse signal with a largest multiple; the control circuit carries out sampling processing on an amplified electric pulse signal; the control circuit determines whether a sampling value is larger than a largest sampling value or not; if so, an amplification multiple of an amplification circuit is reduced, the electrical pulse signal is subjected to amplification and sampling processing, and determination is carried out again; if not, a display circuit is controlled to display the sampling value. In the invention, through comparing the sampling value with the largest sampling value, the amplification multiple is determined, then according to a comparison result, the amplification multiple is adjusted correspondingly, the sampling value suitable for displaying is obtained finally, and an automatic gearshift function of the laser energy meter is realized.

Description

technical field [0001] The invention relates to the field of laser technology, in particular to a laser energy meter and an automatic shifting method thereof. Background technique [0002] With the development of optoelectronic technology, the application field of laser technology is expanding day by day, and the corresponding laser parameter metrology test has been paid more and more attention. In the basic research and clinical application of laser medicine, the amount of laser radiation is directly related to its effect on tissues. To accurately control the amount of laser radiation, it must first be accurately measured. In the measurement of laser radiation, the measurement of output power (for continuous or quasi-continuous lasers) or energy (for pulsed lasers) is the most basic and important. Therefore, laser energy meters have become one of the important tools for quantifying laser radiation. one. [0003] However, the existing laser energy meter does not have an a...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H03K17/72G01J1/44G01J1/02
Inventor 樊仲维徐伟力
Owner BEIJING GK LASER TECH
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