German PROSONDAS sensor PROSONDAS model PROSONDAS price

PROSONDAS sensor pressure sensor for level measurement. The hydrostatic submersible level transmitter (level gauge) is based on the principle that the static pressure of the measured liquid is proportional to the height of the liquid. It uses advanced foreign isolated diffused silicon sensitive elements or ceramic capacitive pressure sensitive sensors to convert static pressure into electrical signals, which are then converted into standard electrical signals (generally 4~20mA/15VDC) after temperature compensation and linear correction.

PROSONDAS sensor classification

Lasers can be divided into 4 types according to the working medium. (1) Solid-state laser: its working medium is solid. Commonly used ones include ruby lasers, neodymium-doped yttrium aluminum garnet lasers (i.e., YAG lasers), and neodymium glass lasers. Their structures are roughly similar, characterized by being small, robust, and high-power. Neodymium glass lasers are devices with the highest pulse output power, reaching tens of megawatts. (2) Gas laser: its working medium is gas. There are now various gas atomic, ion, metal vapor, and gas molecular lasers. Commonly used ones include carbon dioxide lasers, helium-neon lasers, and carbon monoxide lasers. Their shape is like ordinary discharge tubes, characterized by stable output, good monochromaticity, and long life, but lower power and lower conversion efficiency. (3) Liquid laser: it can be further divided into chelate lasers, inorganic liquid lasers, and organic dye lasers, among which organic dye lasers are the most important. Its biggest characteristic is that the wavelength is continuously tunable. (4) Semiconductor laser: it is a relatively young type of laser, among which gallium arsenide lasers are more mature. It is characterized by high efficiency, small size, light weight, and simple structure, making it suitable for carrying on aircraft, warships, tanks, and by infantry. It can be made into rangefinders and sights. However, the output power is small, directivity is poor, and it is greatly affected by ambient temperature.

PROSONDAS sensor principle

When the laser sensor works, the laser emitting diode first emits laser pulses toward the target. After reflection from the target, the laser scatters in all directions. Part of the scattered light returns to the sensor receiver, is received by the optical system, and is imaged onto an avalanche photodiode. An avalanche photodiode is an optical sensor with an internal amplification function, so it can detect extremely weak light signals and convert them into corresponding electrical signals. The common type is the laser distance sensor, which determines the target distance by recording and processing the time elapsed from the emission of the light pulse to its return and reception. The laser sensor must measure the transmission time extremely accurately because the speed of light is too fast.

PROSONDAS sensor application

Over-limit detection of vehicle width and height: Laser sensors are used for rapid measurement. The network kernel of PC industrial PC and visual programming software VB is utilized for real-time data transmission and processing with the sensors. User-friendly upper computer control software is also designed. Field test data shows that the system has good real-time performance and high measurement accuracy, possessing certain practical value. Highway toll stations: Used at highway toll stations for vehicle counting and safety protection. Malaysia's Teras company has already applied hundreds of sets of BEA laser sensors in its manual and automatic toll station systems. The laser sensor adopts the Time of Flight (TOF) measurement principle, forming 4 planes in the detection area to detect vehicles. Meanwhile, the product also features functions such as anti-rear-end collision and vehicle safety protection. Compared with traditional light curtains, laser sensors have advantages such as high sensitivity, high accuracy, convenient installation, high cost-performance ratio, and strong stability. Google's second-generation driverless car: Equipped with laser sensors. In Google's second-generation autonomous driving prototype car, besides the laser sensor on the top which remains quite obvious, other sensors are set very discreetly. Obvious Google driverless car logos are posted on the front, rear, and both sides of the vehicle. The control and driving principle of the Google driverless car is to continuously collect various precise data of the vehicle itself and its surroundings through numerous sensors installed around the car, analyze and calculate through the processor inside the car, and then control the car's driving based on the calculation results. The driverless car uses GPS equipment and sensors to accurately locate the vehicle's position and forward speed, and to judge surrounding pedestrians, vehicles, bicycles, traffic lights, and many other objects. On the roof of this Lexus, there is a 360° rotating laser holographic sensor, which can almost simultaneously sense the conditions in front, on the sides, and behind the car. The data collected by the sensor is input into the processor located on the right rear side of the vehicle through green data cables. This laser sensor also allows the driverless car to achieve global precise positioning. The original L type Lexus emblem on the front of the car was also removed and replaced with a radar sensor; it is used to measure the distance ahead and vehicle speed to determine the traffic conditions ahead and control safe acceleration and deceleration of the vehicle. Position sensors are also installed on the tire hubs to detect wheel rotation and help the vehicle with positioning. The heart of the Google driverless car—the processor—is located on the right rear side of the vehicle. Data information from various sensors is transmitted here through data wires, where it is analyzed and processed by software for precise sensing and judgment of different objects near the driverless car. In addition to analyzing and judging the current positions of objects around the driverless car, the driverless car also needs to calculate through software to accurately predict the possible next position of each object. Finally, the driverless car makes safe driving decisions based on all collected data, including controlling vehicle speed and distance from surrounding vehicles.

Weidou Intelligent Technology professionally sells German PROSONDAS sensors, PROSONDAS proximity sensors, PROSONDAS distance sensors, PROSONDAS vision sensors, PROSONDAS displacement sensors, PROSONDAS load cells, PROSONDAS speed sensors, PROSONDAS photoelectric sensors, PROSONDAS position sensors, PROSONDAS angle sensors, PROSONDAS tactile sensors, PROSONDAS temperature sensors, PROSONDAS pressure sensors, PROSONDAS flow sensors, PROSONDAS level sensors, PROSONDAS motion sensors, PROSONDAS process sensors. Original imports from Germany. Welcome customers to inquire and order.