Non-destructive testing noun (GL)

Glossary 378 1069 Natalie

Gas Laser Irradiance Test The gas laser irradiance test, or GLIT, is a procedure used to measure the power of a gas laser. A gas laser consists of a high-pressure gas within a glass, quartz, or other inert gas-filled cavity. The size and type of the cavity determines the wavelength, or color, of ......

Gas Laser Irradiance Test

The gas laser irradiance test, or GLIT, is a procedure used to measure the power of a gas laser. A gas laser consists of a high-pressure gas within a glass, quartz, or other inert gas-filled cavity. The size and type of the cavity determines the wavelength, or color, of the laser. The purpose of the GLIT is to measure the power of the laser at a particular wavelength, from which the total power of the laser can be calculated.

Gas lasers are commonly used for a variety of things, from welding to industrial processes to medical imaging. The GLIT is a non-destructive test that allows for the assessment of a gas laser’s output power, which is important for ensuring its efficacy in a wide range of applications. By knowing the output power of a laser, engineers and technicians can adjust the settings to maximize its efficacy.

The GLIT involves directing a beam of the laser onto a detector, usually a pyrometer for infrared lasers, which measures the irradiance of the laser at a particular distance. The detector then produces a signal which can be read with an oscilloscope. The measured voltage is then converted to an irradiance, which is the power of the laser at a particular wavelength. By measuring the power at several different wavelengths, the total power of the laser can be determined.

The GLIT is a relatively straightforward procedure that can be done quickly and accurately. However, since the procedure requires direct exposure to the laser, it is important to use safety measures to protect both the personnel conducting the test and the equipment being tested. Additionally, it is important to make sure that the detector used has a high enough sensitivity to accurately measure the power of the laser.

Once the procedure is complete, the results should be compared to specifications for the gas laser in order to ensure it is performing within acceptable parameters. If the results are not within specification, adjustments may need to be made in order to bring the laser back into alignment.

The GLIT is a key tool for assessing and maintaining the power of a gas laser, which is an important and often invaluable tool for a wide variety of applications in industry and science. By regularly testing and calibrating lasers with the GLIT, engineers and technicians can ensure that their lasers are operating at their peak performance.

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