Senba Sensing Technology Co., Ltd.

The biggest difference between LED lighting and traditional lighting is that LED lighting is a complete electronic product, while traditional lighting is only an electrical product. Therefore, LED lamps and lanterns can be easily associated with various types of sensors, thus realizing various automatic control functions such as light control, infrared control and so on. For example, the automatic switch of LED street lamp can be easily realized with a light sensor; for the night walkway and courtyard lighting in communities, infrared sensors can be used to collect information about human activities and automatically turn on and off lighting fixtures. Automatic Control of   smart home light sensor Sensors is used as signal acquisition and electromechanical conversion devices, and the electromechanical technology of the sensors has been quite mature. In recent years, the rise of MEMS technology has made great strides towards miniaturization, intellectualization, m...

Brief introduction: Light sensor is one of the most common sensors. There are many kinds of sensors, such as photoelectric tube, photomultiplier tube, photosensitive resistor, photosensitive triode, solar cell, infrared sensor, ultraviolet sensor, optical fiber photoelectric sensor, color sensor, CCD and CMOS image sensor. Its sensitive wavelength is near the visible wavelength, including infrared wavelength and ultraviolet wavelength. Optical sensors are not only limited to the detection of light, but also can be used as detection elements to form other sensors to detect many non-electric quantities, as long as these non-electric quantities are converted into changes in optical signals. Optical light sensor is one of the most productive and widely used sensors. It plays a very important role in automatic control and non-electric measurement technology. The simplest light sensor is a photoresistor, which generates an electric current when the photon impacts the junction. ...

As we all know, nowadays, sensors have been widely used in human production and life. Especially for high-precision products, various sensors are used to monitor and control the parameters in the production process, so that the equipment can work in the normal or optimal state, and the product can achieve the best quality. Therefore, it can be said that without many excellent sensors, modern production will lose its foundation. In medicine, the use of sensors can better analyze the cause of disease and get a good treatment plan. In scientific research, sensors have a more prominent position. In many fields, people's senses and simple sensors can not get accurate data at all. We must use high-precision sensors to achieve analysis and measurement. The light sensors are sensors that use photosensitive elements to convert light signals into electrical signals. Because of the characteristics of nontouch, fast response and reliable performance, it plays a very important role in ...

Optocoupler (optical coupler, and the English abbreviation is OC) is also called photoelectric resistor , refering to optical coupler. The optocoupler transmits electrical signals through optical media. photosensitive resistance  has a good isolation effect on the input and output of the electrical signals, so it is widely used in various circuits. At present, it has become one of the most diverse and widely used optoelectronic devices. Optical couplers are generally composed of three parts: light emission, light reception and signal amplification. The input electric signal drives the light-emitting diode (LED) to emit a certain wavelength of light, which is received by the photodetector and generates photocurrent, and then amplified and output. This completes the electro-optical-electrical conversion, thus playing the role of input, output and isolation. Because the input and output of optical coupler are isolated from each other, the transmission of electric signal has...

The photosensitive resistance sensor  is a relatively new type of electronic products. It is widely used in computers, audio and video. It is also called optocoupler or photo coupler. It is used in various control circuits. Because the light-emitting diodes and phototransistors in the photocoupler only change the voltage or current of the front and back stages of the circuit into the change of light, there is no electrical connection between them, so the potential connection between the circuits can be effectively cut off and the reliable isolation between the circuits can be realized. 1. The detection of photosensitive sensor  can judge the quality of optocoupler by measuring the internal resistance of diode and triode in circuit. More reliable detection methods are the following three. 1. Comparison method  the suspected photocoupler is removed and its internal diode is measured with a multimeter. The positive and reverse resistance of the transistor is ...

The Brief Introduction of the sensor optocoupler The optocoupler (optical coupler, and the english abbreviation is OC) is also called photoelectric isolator, which referred to the optical coupler. The optocoupler transmits electrical signals through optical media. It has a good isolation effect on the input and output electrical signals, so it is widely used in various circuits. At present, it has become one of the most diverse and widely used optoelectronic devices. The optocoupler are generally composed of three parts: light emission, light reception and signal amplification. The input electric signal drives the light-emitting diode (LED) to emit a certain wavelength of light, which is received by the photodetector and generates photocurrent, and then amplified and output. The Classification of the optocoupler sensor   There are dozens of types of optocoupler, including general type (it is also divided into the nonbase lead and base lead), Darlington type, Schmid...

Optical Coupler (opticalcoupler, and English abbreviation is OC) is also known as optical isolator or optocoupler, and it is shortly called the optical coupler. It is a device that transmits electrical signals through light. Usually, the luminescent device (infrared light emitting diode LED) and the photoreceptor (photosensitive semiconductor tube) are encapsulated in the same shell. When the input end adds electric signal, the light emitting diode emits light. After receiving light, the phototransistor generates photocurrent, which flows out from the output end, thus realizing the "electro-opto-electric" conversion. The optoelectronic coupler, which couples the input signal to the output signal through the medium of light, is widely used in digital circuits because of its small size, long life, no contacting point, strong anti-interference ability, insulation between output and input, and unidirectional transmission of signals. The main advantages of optocoupl...

The optocoupler is an electro-optic-electro converter which transmits electric signal through optical medium. It uses light as a medium to convert electrical signals at the input end into optical signals, and then couples them to the output end and converts them into electrical signals. The Method of Judging the Quality of Optocoupler To judge the quality of the analog optocoupler , the forward and reverse resistance of the internal diode and triode can be measured. More reliable detection methods are the following three: 1. Comparing mehod: Remove the photocoupler which may have problems and measure its internal diode with a multimeter; then compare the normal positive and reverse resistance of the transistor with the measured value of the corresponding foot of the good photocoupler. If the resistance difference is large, the photocoupler is damaged. 2. Digital Multimeter Detection Method: The following is using an example of PCIll photocoupler detection to ...

Some terminology of industrial technology often blurs the distinction between similar concepts. Today, we find that the terms   analog opto isolator  and optical isolator are used interchangeably to refer to the same function. Working principle The optocoupler and optical isolators allow the transmission of signals and data from one system to another in an electronic device without direct electrical connection. This is accomplished optically by placing transmitters and detectors separated by transmitters and detectors in a single package and then sending beams to the optical receiver. This allows the circuit to maintain complete electrical isolation, while information can be transmitted from one potential to another. In all optocoupler and optical isolators, input signals are converted into light pulses emitted by LEDs. This optical pulse is transmitted to a silicon-based optical sensor. Optical sensors can be analog or digital according to the type of inp...