Senba Sensing Technology Co., Ltd.

  The company head quarter and the manufacturer facility are located in a beautifully landscaped industrial park, named after Senba, in Nanyang, Henan. In order to provide better customer services, we also have set up branches in Shenzhen, Ningbo, Wenzhou. Until now, Senba   has become the most advanced manufacturer specialized in PIR sensor technology   in China.   Non Contact Thermometer Non contact temperature measurement sensors   The traditional body non contact type temperature measurement  is a contact measurement using a non contact type thermometer , which has the advantages of stable performance and small error, but has the disadvantages of long measurement time, high risk of cross-contamination, and easy to cause mercury poisoning due to glass breakage.   Infrared ear thermometer is the most commonly used thermometer. It can test body temperature with a slight amount of forehead or ear, and it can also prevent body infection. Infrared body t...

  The company head quarter and the manufacturer facility are located in a beautifully landscaped industrial park, named after Senba, in Nanyang, Henan. In order to provide better customer services, we also have set up branches in Shenzhen, Ningbo, Wenzhou. Until now, Senba   has become the most advanced manufacturer specialized in PIR sensor technology   in China.   Knowledge Introduction of the LDR Sensors / LDR Introduction With years' experience, Senba Sensor has high-quality photoresistors for sale. This article is a brief introduction of the light dependent resistor.   LDR sensor has no polarity. It is purely a resistor device. It can be used with either DC voltage or AC voltage. LDR photocell sensor is a photoelectric element made of semiconductor material and operated by internal photoelectric effect. Under the action of light, its resistance often decreases. This phenomenon is called photoconductive effect. Therefore, LDR sensor is also called photocondu...

       The company head quarter and the manufacturer facility are located in a beautifully landscaped industrial park, named after Senba, in Nanyang, Henan. In order to provide better customer services, we also have set up branches in Shenzhen, Ningbo, Wenzhou. Until now, Senba   has become the most advanced manufacturer specialized in PIR sensor technology   in China.   How to Use Ldr  Sensors to Realize the Circuit Control of Photoswitch? Ldr sensors are sensitive to light sticking. The stronger the light, the smaller the resistance value; the darker the light, the greater the resistance value. So we can use this characteristic to construct the ldr sensor circuit , and cooperate with relay/triode/MOS transistor to realize the photoswitch. Next, the ldr switch circuit   of realizing photoelectric switch by using ldr sensor, ldr transistor  and relay is introduced.   1. What is Ldr Sensor The working principle of ldr sensor is based...

  The company head quarter and the manufacturer facility are located in a beautifully landscaped industrial park, named after Senba, in Nanyang, Henan. In order to provide better customer services, we also have set up branches in Shenzhen, Ningbo, Wenzhou. Until now, Senba   has become the most advanced manufacturer specialized in PIR sensor technology   in China.   How to Realize the Control of Photosensitive Switch by LDR Sensors LDR sensors are widely used in various industries. This article gives you a brief introduction and application of photoresistor sensor.   Brief Introduction of LDR Sensors Ldr sensor is a kind of special resistor made of special material, which has a rapid decrease of resistance value under the irradiation of specific wavelength. Its working principle is based on the internal photoelectric effect. It is very sensitive to light. With the increase of illumination, the resistance value decreases. In the absence of illumination, it presen...

  Owning very strong R&D Center, Senba can research and develop the passive infrared sensor   independently. Among those motion sensor companies , Senba Sensor has become the first owner of this special technology enterprise in China. We are awarded as "Henan high-tech enterprises" in 2006 and awarded as "Notional high-tech enterprises" in 2012.   Do PIR S ensor T hrough G lass ? No, alarm motion sensors do not work through glass. Most motion sensors use passive infrared (PIR) technology to detect motion. Changes in IR energy are not easily detected through glass. This is why motion sensors will generally not work through windows, which are usually insulated.   After read this, you will know how does PIR work .  

  Owning very strong R&D Center, Senba can research and develop the passive infrared sensor   independently. Among those motion sensor companies , Senba Sensor has become the first owner of this special technology enterprise in China. We are awarded as "Henan high-tech enterprises" in 2006 and awarded as "Notional high-tech enterprises" in 2012.   Characteristic, Principle and Application of LDR Sensor LDR sensor is a special resistor made of semiconductor materials such as sulfide or selenide. It is also coated with moisture-proof resin and has photoconductive effect.   Characteristic of the LDR sensor The LDR characteristics  are very sensitive to light. The stronger the light, the lower the resistance. With the increase of illumination intensity, the resistance value of the ldr photoresistor decreases rapidly, and it can be reduced to less than 1K.   LDR sensor working principle The working principle of LDR sensor / principle of LDR  is based on...

  Owning very strong R&D Center, Senba can research and develop the passive infrared sensor   independently. Among those motion sensor companies , Senba Sensor has become the first owner of this special technology enterprise in China. We are awarded as "Henan high-tech enterprises" in 2006 and awarded as "Notional high-tech enterprises" in 2012.   Burglar Alarm System Security anti-theft solution   With the continuous improvement of people's living standards, people's demand for family life comfort is getting stronger and stronger. People tend to consider the safety of home in the first place. This kind of smart home mainly consists of visual intercom door machine and various detectors. The composition is connected to the smart home management machine. Once the alarm button is triggered, the smart home receives the signal through burglar alarm pir sensors / burglar alarm pir  and performs as a ldr burglar alarm  to remind the user.   The highest le...

  Owning very strong R&D Center, Senba can research and develop the passive infrared sensor   independently. Among those motion sensor companies , Senba Sensor has become the first owner of this special technology enterprise in China. We are awarded as "Henan high-tech enterprises" in 2006 and awarded as "Notional high-tech enterprises" in 2012.   The Advantages and Disadvantages of the LDR Sensors The working principle of LDR sensors is based on internal photoelectric effect. Difference between LDR and photodiode   is formed by installing electrode leads at both ends of a semiconductor photosensitive material and encapsulating them in a shell with a transparent window. In order to increase the sensitivity, the two electrodes are usually made into combs.   Semiconductors such as metal sulfides, selenides and tellurides are the main materials used to manufacture LDR sensors. Usually, thin LDR sensors and comb-shaped ohmic electrodes are fabricated on insulati...