German MENZEL sensors MENZEL models MENZEL prices

MENZEL sensors, also known as torque sensors, torsion sensors, torque sensors, and torque meters, are divided into two main categories: dynamic and static. Among them, dynamic torque sensors are also called torque sensors, torque-speed sensors, non-contact torque sensors, and rotating torque sensors. Torque sensors detect the perception of torsional moment on various rotating or non-rotating mechanical components. Torque sensors convert the physical changes of torque into precise electrical signals. Torque sensors can be applied in the manufacture of viscometers and electric (pneumatic, hydraulic) torque wrenches. They feature high precision, fast frequency response, good reliability, and long service life.

MENZEL sensor classification

Lasers can be classified into 4 types based on the working medium. (1) Solid-state lasers: The working medium is solid. Common types include ruby lasers, neodymium-doped yttrium aluminum garnet lasers (i.e., YAG lasers), and neodymium glass lasers. Their structures are roughly similar, characterized by compactness, robustness, and high power. Neodymium glass lasers are devices with the highest pulsed output power, reaching tens of megawatts. (2) Gas lasers: The working medium is gas. There are now various gas atomic, ion, metal vapor, and gas molecule lasers. Common types include carbon dioxide lasers, helium-neon lasers, and carbon monoxide lasers. Their shape resembles ordinary discharge tubes, characterized by stable output, good monochromaticity, and long service life, but lower power and lower conversion efficiency. (3) Liquid lasers: These can be further divided into chelate lasers, inorganic liquid lasers, and organic dye lasers, among which organic dye lasers are the most important. Their greatest feature is continuously tunable wavelength. (4) Semiconductor lasers: This is a relatively young type of laser, with gallium arsenide lasers being more mature. Features include high efficiency, small size, light weight, and simple structure, making them suitable for carrying on aircraft, warships, tanks, and by infantry. They can be made into rangefinders and sights. However, they have lower output power, poorer directionality, and are significantly affected by ambient temperature.

MENZEL sensor principle

When a laser sensor operates, 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 internal amplification capability, so it can detect extremely weak light signals and convert them into corresponding electrical signals. Commonly used are laser distance sensors, which determine the target distance by recording and processing the time elapsed from the emission of the light pulse to its return and reception. Laser sensors must measure the transmission time extremely precisely because the speed of light is very fast.

MENZEL sensor applications

Over-limit detection of vehicle width and height: Laser sensors are used for rapid measurement. The network kernel of the PC industrial PC and visualization programming software VB is utilized for real-time data transmission and processing with the sensors. User-friendly host computer control software has also been designed. Field test data shows that the system has good real-time performance, high measurement accuracy, and 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 sensors adopt the Time-of-Flight (TOF) measurement principle, forming 4 planes within 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, the prototype of Google's second-generation autonomous vehicle still has a quite obvious laser sensor on the top, while other sensors are set up 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 via the processor inside the car, and then control the vehicle's movement 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 shaped Lexus emblem on the front of the car was 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 with vehicle 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 cables for analysis and processing by software, enabling 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 software needs to calculate and 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 MENZEL sensors, MENZEL proximity sensors, MENZEL distance sensors, MENZEL vision sensors, MENZEL displacement sensors, MENZEL torque sensors, MENZEL speed sensors, MENZEL photoelectric sensors, MENZEL position sensors, MENZEL angle sensors, MENZEL tactile sensors, MENZEL temperature sensors, MENZEL pressure sensors, MENZEL flow sensors, MENZEL level sensors, MENZEL motion sensors, MENZEL process sensors. Original imports from Germany. Welcome customers to inquire and order.