1. Photoelectric smoke alarm When there is no smoke, the light emitted by the light-emitting diode travels in a straight line, and the phototriode does not receive a signal. There is no output, when there is smoke, the light emitted by the LED is refracted by the smoke particles, so that the transistor receives the light, there is a signal output, ...

1. Red LED – visible light, easy to adjust. 2. Infrared LED – high energy invisible light. 3. Red laser – visible light, its physical properties are ideal for small object detection and large detection ranges. ...

Superior color contrast sensitivity, detecting contrast as low as 2% over a wide range of colors Excellent performance in low-contrast or high-gloss applications Ultra-fast 10 kHz switching frequency (10,000 starts per second) with 15μs repeatability Robust and durable zinc ...

1. Long detection distance If the detection distance of 10 m or more is retained in the through-beam type, it is possible to achieve detection that is not possible with other detection methods (magnetic, ultrasonic, etc.). 2. There are few restrictions on the detected objects Due to the detection of shading and reflection caused by the detection of objects ...

A temperature sensor is a sensor that senses the temperature and converts it into a usable output signal. Temperature sensors are the heart of temperature measuring instruments and come in a wide variety of varieties. According to the measurement method, it can be divided into two categories: contact and non-contact, and according to the characteristics of sensor materials and electronic components, it can be divided into thermal resistance and ...

Infrared sensor is a kind of sensor that uses infrared rays to process data, which has the advantages of high sensitivity, and the infrared sensor can control the operation of the driving device. Infrared sensors are commonly used for non-contact temperature measurement, gas composition analysis and non-destructive testing.

The sensor is a kind of detection device, which can feel the measured information, and can transform the felt information into electrical signals or other required forms of information output according to a certain law, so as to meet the requirements of information transmission, processing, storage, display, recording and control. Photoelectric sensors and ...

Infrared sensors are sensors that use the physical properties of infrared rays to make measurements. Infrared, also known as infrared light, has the properties of reflection, refraction, scattering, interference, absorption, etc. Any substance that has a certain temperature above absolute zero can radiate infrared rays. ...

The increasing adoption of industrial automation, technological advancements in liquid level sensors, and increasing usage in the energy and power sectors will drive the growth of the global liquid level sensors market. However, the lack of precision and accuracy of liquid level sensors may hinder the market growth. There are several types of level sensors, ...

Liquid level sensors A liquid level sensor is a common sensor that measures the position of a liquid level, and it is an output that converts the height of the level into an electrical signal. The liquid level sensor is a modular circuit, which has the advantages of acid resistance, moisture resistance, shock resistance, corrosion resistance, etc., and the circuit contains constant current feedback ...

Proximity sensors are a class of sensors that use electromagnetic fields, light, and sound to detect the presence or absence of objects. There are many types of proximity sensors, each of which is suitable for a specific application. 1. Inductive proximity sensor The operation of inductive proximity sensors ...

A proximity sensor is a device with the ability to perceive the proximity of an object, which uses the sensitivity of the displacement sensor to the approaching object to identify the proximity of the object and output the corresponding switching signal. For this reason, proximity sensors are often referred to as proximity switches. It is an alternative to contact detection ...

Modbus is an application-layer protocol that defines a data unit (ADU) that is independent of the underlying network and can communicate over Ethernet (TCP/IP) or serial links (RS232, RS485, etc.) (Ethernet ADUs and serial ADUs are slightly different). On a serial link, the Modbus protocol has two ...

The progress of industrial automation and intellectualization has enabled human beings to gradually liberate themselves from heavy manual labor, and the emergence of machine tools and machining centers has enabled machines to complete the processing of parts faster and more accurately, and the emergence of automatic loading and unloading systems has made the machining center more powerful. And the loading and unloading ...

Photoelectric sensors Ordinary detection Groove detection Fiber inspection Laser detection Ambient light source detection Photoelectric buttons Measurement and inspection products Color code and color detection C-GAGE Optical measurement of L-GAGE Ultrasonic measurement ...

What is an ultrasonic sensor? Ultrasonic sensors are industrial control devices that use sound waves above 20,000Hz that exceed the range of human hearing to measure and calculate the distance from the sensor to the target object. How do ultrasonic sensors work? The sensor has a ...

1. The operating principle of photoelectric sensor and optical fiber sensor is different First of all, from the principle of operation of the two, first of all, the photoelectric sensor is based on the principle of the photoelectric effect, that is to say, when the light shines on the photoelectric sensor made of semiconductors, it will be announced that the photoelectric ...

Everyone is familiar with the brand Banner, what are the fields of sensor applications under Banner? Today, we will introduce the application fields of Banner sensors, which are mainly used in: booster cylinders, boosters, gas-hydraulic booster cylinders, gas-liquid boosters, presses, compressors, air conditioning and refrigeration equipment, etc.

The three foundations of modern information technology are information collection (i.e., sensor technology), information transmission (communication technology), and information processing (computer technology). Sensors belong to the cutting-edge products of information technology, especially temperature sensors are widely used in industrial and agricultural production, scientific research and life.

The common faults of Banner displacement sensors are described in seven points, the details are as follows: 　　The linear line works on the same principle as a sliding rheostat and is used as a voltage divider, which represents the actual position of the measured position with a relative output voltage. To this outfit ...

1. Application in infrastructure engineering Internet of Things In the process of construction and use of major projects such as highways, bridges, tunnels and buildings, there are often local collapses, leaks and fires in tunnels, local cracks and collapses in bridges, which not only seriously threaten people's lives and property.