With the development of science and technology, the pollution problem has become more and more serious, and the incidence of smog has begun to increase year by year. Dust prevention has become an important issue in the environmental protection industry. So how to reduce dust pollution and purify the air? Today, Fiber Closure manufacturers will tell you how to remove dust from photoelectric sensors:
If you want to be dust-proof, you must first know the emissions of these soots, and then monitor the source of the smoke. At this time, the photoelectric sensor provides great help for the monitoring of smoke and dust, and can effectively detect the turbidity. The turbidity of the smoke in the flue is detected by the magnitude of the change in the course of light transmission in the flue. If the turbidity of the flu increases, the light emitted by the light source is increased by the absorption and refraction of the soot particles, and the light reaching the sensor is reduced. Therefore, the intensity of the output signal of the photosensor can reflect the change of the turbidity of the flue.
In order to detect the turbidity of the submicron particles which are most harmful to the human body in the smoke and to avoid the influence of water vapor and carbon dioxide on the attenuation of the light source, visible light is selected as the light source. In general, the photosensor selects a photocell having a spectral response range of 400 to 600 mm to obtain a corresponding electrical signal as a function of turbidity. In order to improve the detection sensitivity, an operational amplifier with high gain, high input impedance, low zero drift, and high common mode rejection ratio is used to amplify the signal. Scale calibration is used to zero and adjust the scale to ensure the accuracy of the test. The display is used to display the instantaneous value of turbidity. The alarm current consists of a multivibrator when the operational amplifier output turbidity signal exceeds a specified value. Multivibrator operation. The output signal is amplified to push the speaker to give an alarm signal.
Photoelectric sensors are typically used to detect multiple non-electrical quantities. The optical devices that are affirmed by the different modes of action of the luminous flux on the photoelectric elements are various and can be classified into two types according to their output properties: a virtual photoelectric sensor detection system and a switching photoelectric sensor detection system.
Although the pursuit of scientific and technological progress is a top priority, protecting our living environment and reducing the burden on the earth is something that each of us needs to do. Rational use of our technology products to maintain our common global village. Now everyone knows how to remove the photoelectric sensor.