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2020-06-01

Understanding of spectral confocal sensor signal light

In order to facilitate the user to understand the operating status of the sensor in real time, there are six sets of signal lights on the panel of the spectral confocal sensor, which show the actual situation of the sensor from four aspects: power supply, USB connection, measuring head connection and measurement status. Today, spectrometer spectral confocal manufacturers will talk about the understanding of spectral confocal sensor signal lights.


The power supply, USB connection and measuring head connection are indicated by LED signal indicators. After the sensor is powered on, the above three LED lights appear green, indicating that the sensor is ready for normal operation.


The measurement status indicator includes three LED signals that display system error, light signal strength, and range warnings. The system error light indicates whether the transmission data is overloaded, the optical signal strength indicator indicates whether the current optical intensity signal exceeds 5%, and the range warning indicator indicates whether the measured sample is within the range.




The normal state of the system error signal is off, that is, no color light is displayed. However, when data is transmitted simultaneously using RS232 or RS422 interfaces, both the measurement frequency and the transmitted data format affect the amount of data transferred. When the amount of data being transmitted is overloaded, the signal light will turn red. At this time, the measurement frequency should be appropriately reduced or the data transmission format should be changed. In addition, transmissions using the universal serial bus experience less data overload.


The light intensity signal indicator shows whether the current light intensity exceeds 5%. When the measurement sample is out of range, there is no measurement signal and the indicator light is off. When the light intensity signal is greater than 5%, the signal light turns green, indicating that the measurement data quality is high. When the light intensity signal is less than 5%, the signal light will display an orange warning, indicating that the light intensity signal on the user's face is weak and the measurement data is invalid. This should be:


1. Reduce the measurement frequenc

2. Increase the brightness of the light source

3. Average usage data

4. Place the sample in the middle of the measuring range.


When the signal light turns red, it indicates that the current light intensity signal is 100%. There is uncertainty about the quality of the measured data, so we can try some methods to resolve it:


1. Increase the measurement frequency

2. Reduce the brightness of the light source

3. Place the sample at the beginning or end of the measurement range, which is less sensitive to light signals.


Whether the current sample of the range alarm light is within the range, when the sample is not within the range, the signal light is in the off state. When the sample is in the 15%-85% range, the light will turn green. However, when the sample is below 15% of the measurement range or above 85% of the measurement range, the signal light will be orange. At this point, the measured data is still valid, but it must be noted that the sample is not within the measurement range.


In the specific measurement process, it is necessary to ensure that the light intensity and range alarm indicator light is green, so the measurement data quality is good and the repeatability is high. If you encounter an orange or red display, you need to adjust the status of the sensor according to the above method. This is the understanding of the spectral confocal sensor signal light, if the above methods can not solve the problem, please contact our Liyi technology after-sales engineers, we will help you solve the problem.


Shenzhen Liyi Technology Co., Ltd. is a professional production and sales of displacement sensor, laser displacement sensor, Angle displacement sensor, spectral confocal sensor company, in need of friends can call to consult Liyi fiber coaxial displacement sensor manufacturers. Welcome your call!