How to use a moving detector goniophotometer to test LED tube light?

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A device that detects motion A goniophotometer is a sort of goniophotometer that measures the intensity of light produced by a light source at different angles by using a moving detector, such as a photometer or lux meter. Goniophotometers come in a variety of configurations. To analyze the performance of LED tube lights in terms of their light distribution, intensity, and uniformity, goniophotometers of this particular kind are often used for the purpose of measuring the intensity distribution of the light they emit.

In order to successfully test an LED tube light with a moving detector goniophotometer, you will need to adhere to the following basic steps:

  1. The goniophotometer should be calibrated once it has been set up in accordance with the instructions provided by the manufacturer. This may include positioning the measuring chamber, adjusting the measurement angles, and confirming the photometer's or lux meter's accuracy.
  2. Place the LED tube light to be examined in the measuring chamber of the goniophotometer. Ensure that it is placed firmly and that it is aligned with the rotation axis of the goniometer.
  3. Adjust the measurement angles on the goniophotometer so that they correspond to the angles indicated in the standard that you are using. For example, if you are using ANSI C78.81, IESNA-63, or LM-79, set the measurement angles on the goniophotometer so that they match those angles.
  4. By shifting the detector to the required angle, you may get an accurate reading of the illuminance at each angle.
  5. Calculate the photometric parameters using the observed illuminance values and the formula that is stated in the standard that you are using. These photometric parameters include luminous flux, the luminous intensity, the luminous efficacy, and the coefficient of usage.
  6. In the event that it is necessary to do so, repeat the measurement at a number of different points, most often on the surface of the light.

Before utilizing the instrument to measure light intensity, one must first get acquainted with both the instrument and the standards, since it is a complicated piece of measuring equipment. It is essential to keep in mind that this is the case. In addition, the standard that you are using should be tailored to the application in question as well as the kind of light source that is being evaluated.

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