German BECKER ELECTRONICS sensors, BECKER ELECTRONICS models, BECKER ELECTRONICS prices

BECKER ELECTRONICS sensors are devices capable of detecting the approach of objects. They utilize the sensitivity of displacement sensors to nearby objects to identify proximity and output corresponding switching signals; therefore, proximity sensors are often referred to as proximity switches. This is a general term for sensors designed to replace contact-based detection methods such as switches, with the aim of non-contact detection of the target object. They can detect movement and presence information of the object and convert it into electrical signals.

BECKER ELECTRONICS Sensor Classification

1) Laser speed measurement: With the rise of precision manufacturing and the need for cost savings, non-contact speed sensors are gradually replacing contact speed sensors. Currently, the most accurate and commonly used non-contact laser speed sensor on the market is the ZLS-Px aberration speed sensor. The aberration speed sensor has two ports: one emission port that emits a LED light source, and one high-speed photography port that achieves CCD area high-speed imaging comparison. By comparing images at two points in time within an extremely short period, the distance the measured object moves is determined, and combined with internal algorithms, the sensor outputs the object's speed in real time. As shown in the figure, (1) LED light emission port, (2) camera reception port, (3), (4) terminal blocks, (5) mounting screw holes. (1) The LED light emission port emits laser light toward the measured object, which reflects to the (2) camera reception port. Upon receiving the signal, it is transmitted to the signal processor, which calculates the speed via algorithms. The ZLS-Px aberration speed sensor can simultaneously measure speed and length in two directions. It not only detects whether the measured body has stopped but also detects its direction of motion. Mount the sensor on a stable bracket to ensure that the rotating object does not generate excessive vibration during rotation, thereby allowing measurement of the rotation angle and rotational speed of the measured body. 2) Radar speed measurement: Traditional speed measurement mostly involves rotary motion speed measurement and linear motion speed measurement. However, there are many irregular speed measurement scenarios in industrial automation, such as athlete speed measurement, traffic vehicle speed measurement, and golf ball speed measurement. Radar speed sensors can meet these requirements.

BECKER ELECTRONICS Sensor Principle

The transmissive speed sensor consists of a slotted or notched disk, a light source, and a phototube. When the disk rotates with the measured shaft, light can only reach the phototube through the holes or notches. When the phototube is illuminated, its reverse resistance is very low, outputting an electrical pulse signal. When the light source is blocked by the disk, the phototube's reverse resistance is very high, and no signal is output. Thus, based on the number of holes or notches on the disk, the rotational speed of the measured shaft can be determined. The usual number of disk holes or notches is unclear in the source, so the photoelectric converter outputs 60 pulse signals per revolution of the measured shaft. If the time base signal of the electronic counter is set to 1s, the rotational speed of the measured shaft can be read directly. The principle of the reflective speed sensor is similar to that of the transmissive type, converting changes in sensed light into electrical signal changes via a phototube, but it obtains pulse signals through light reflection. Typically, reflective material is adhered to the measurement area of the measured shaft to form a reflective surface. Commonly used reflective materials include special speed-measuring reflective paper tape (adhesive tape); aluminum foil or other reflective materials can also be used as substitutes. Sometimes, white paint is applied to the measured area to serve as a reflective surface. The projector and reflective surface must be properly configured, typically with a distance of 5-15M between them. When the measured shaft rotates, the photoelectric element receives pulsating light and outputs corresponding electrical signals to the electronic counter, thereby measuring the rotational speed of the measured shaft. The waveform of the output signal from photoelectric speed sensors is relatively regular, close to a standard square wave, with almost no interference signals generated. However, vibration in transmissive types can reduce the lifespan of the light source, making them unsuitable for conditions with strong vibrations. Reflective types have no mechanical connection with the measured shaft and are convenient to use.

BECKER ELECTRONICS Sensor Industry Applications

1) Modern vehicles are generally equipped with engine control, autonomous driving, ABS, TRC, automatic door locking, active suspension, guidance systems, electronic instruments, and other devices, All these devices require the vehicle speed signal. Therefore, The accuracy and stability of the output signal from the vehicle speed sensor will have a significant impact on these control units. Vehicle speed sensors mostly adopt a Hall-effect structure, A Hall speed sensor is a magneto-electric sensor based on the Hall effect, Characterized by high sensitivity to magnetic fields, stable output signal, high frequency response, strong resistance to electromagnetic interference, simple structure, and ease of use. It mainly consists of permanent magnets with a specific number of pole pairs (generally 4 or 8 pairs), Hall elements, a rotating mechanism, and input/output connectors. Its working principle is that when the sensor's rotating mechanism rotates under external drive, it drives the permanent magnet to rotate, causing the magnetic field passing through the Hall element to change periodically, which causes the output voltage of the Hall element to change, forming a stable pulse voltage signal through subsequent circuit processing, serving as the output signal of the vehicle speed sensor. The main electrical technical parameters of Hall-effect speed sensors include: high-level output voltage, low-level output voltage, duty cycle, period, rise time, fall time, number of pulses per cycle, etc. To ensure product performance reliability, these parameters must be quantitatively tested before leaving the factory. Test systems featuring integration and intelligence, efficient automatic measurement, software computation, and graphical or tabular display of test results are increasingly favored by vehicle speed sensor manufacturers. A comprehensive testing device developed for performance measurement of commonly used Hall-effect vehicle speed sensors. Considering cost, the high-speed counter port of a microprocessor is used for data acquisition from the vehicle speed sensor, and software control is used to compute the acquired data and process it for graphical display. The completed testing device offers advantages such as high testing accuracy, reliable data communication, a user-friendly graphical interface, strong anti-interference capability, a simple and intuitive testing process, and low system development cost. It has good market potential for widespread adoption, Therefore, speed sensors have significant application prospects in vehicle speed detection. 2) The speed sensor of the belt conveyor uses a Hall sensor, which is mainly a sensor that utilizes the Hall effect to achieve magneto-electric conversion, The Hall effect has a development history of more than 100 years since it was discovered in 1879, but its application was in the 50s of this century, due to the rapid development of microelectronics, it has been valued and promoted for use by people, and various types of Hall elements have been continuously developed. China began to increase research on Hall elements in the 70s of the 20th century, after nearly several decades of research and development, it is now possible to produce Hall elements with various performances, such as: ordinary type, high sensitivity type, low temperature coefficient type, temperature and magnetic measurement type, and switch-type Hall elements. Due to the characteristics of Hall sensors such as high sensitivity, good linearity, high stability, small size, and high temperature resistance, they have been widely used in various industrial fields such as non-electrical quantity measurement automatic control, computer devices, and modern military technology.

Weidou Intelligent Technology specializes in selling German BECKER ELECTRONICS sensors, BECKER ELECTRONICS proximity sensors, BECKER ELECTRONICS distance sensors, BECKER ELECTRONICS vision sensors, BECKER ELECTRONICS displacement sensors, BECKER ELECTRONICS torque sensors, BECKER ELECTRONICS speed sensors, BECKER ELECTRONICS photoelectric sensors, BECKER ELECTRONICS position sensors, BECKER ELECTRONICS angle sensors, BECKER ELECTRONICS tactile sensors, BECKER ELECTRONICS temperature sensors, BECKER ELECTRONICS pressure sensors, BECKER ELECTRONICS flow sensors, BECKER ELECTRONICS level sensors, BECKER ELECTRONICS motion sensors, BECKER ELECTRONICS process sensors. Original imports from Germany. Welcome inquiries and orders from users.