German BEDIA Motorentechnik sensors, BEDIA Motorentechnik models, BEDIA Motorentechnik prices

BEDIA Motorentechnik sensors precisely measure the actual displacement of the detected product by detecting the absolute position of the movable magnetic ring through internal non-contact measurement and control technology; the high precision and high reliability of this sensor have been widely applied in thousands of practical cases. Since the movable magnetic ring used for position determination and the sensitive element do not come into direct contact, the sensor can be used in extremely harsh industrial environments and is not easily affected by oil stains, solutions, dust, or other contaminants. In addition, the sensor uses high-tech materials and advanced electronic processing technology, allowing it to operate in high-temperature, high-pressure, and high-vibration environments. The sensor output signal is the absolute displacement value; even if the power is interrupted and reconnected, data will not be lost, and there is no need to re-zero. Since the sensitive element is non-contact, repeated detection will not cause any wear to the sensor, greatly improving detection reliability and service life.

BEDIA Motorentechnik sensor classification

1) Laser speed measurement: With the rise of precision manufacturing and the demand for cost savings, non-contact speed sensors are gradually replacing contact speed sensors. Currently, the most common and high-precision 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 moved by the object under test is determined, and combined with the algorithm inside the sensor, the speed of the object is output in real time. As shown in the figure, (1) is the LED light emission port, (2) is the camera reception port, (3) and (4) are terminal blocks, and (5) are fixing screw holes. The (1) LED light emission port emits laser light toward the object under test, which reflects to the (2) camera reception port. After receiving the signal, it is transmitted to the signal processor, which calculates the speed via an algorithm. The ZLS-Px aberration speed sensor can simultaneously measure speed and length in two directions. It can not only detect whether the object under test has stopped but also detect its direction of motion. Fix the sensor on a stable bracket to ensure that the rotating object does not produce excessive vibration during rotation, thereby allowing measurement of the rotation angle and rotational speed of the rotating object. 2) Radar speed measurement: Traditional speed measurement mostly involves rotary motion speed measurement and linear motion speed measurement. However, there are many irregular speed measurements in real-world industrial automation, such as athlete speed measurement, traffic vehicle speed measurement, and golf ball speed measurement. Radar speed sensors can meet these requirements.

BEDIA Motorentechnik 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 shaft under test, 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 reverse resistance of the phototube is very high, and no signal is output. Thus, the rotational speed of the shaft under test can be measured based on the number of holes or notches on the disk. The usual number of disk holes or notches is unclear in the source, so each revolution of the shaft under test allows the photoelectric converter to output 60 pulse signals. If the time base signal of the electronic counter is set to 1s, the rotational speed of the shaft under test can be read directly. The principle of the reflective speed sensor is the same as that of the transmissive type, converting changes in sensed light into changes in electrical signals via a phototube, but it obtains pulse signals through light reflection. Typically, reflective material is attached to the measurement area of the shaft under test 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, and sometimes white paint is applied to the measurement area to serve as a reflective surface. The projector and the reflective surface must be properly configured, typically with a distance of 5-15M between them. When the shaft under test rotates, the photoelectric element receives pulsating light and outputs corresponding electrical signals to the electronic counter, thereby measuring the rotational speed of the 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 shaft under test and are convenient to use.

BEDIA Motorentechnik 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, These devices all require the vehicle speed signal. Therefore, The accuracy and stability of the output signal from the sensor measuring vehicle running speed will have a significant impact on these control units. Automotive speed sensors mostly adopt a Hall-effect structure, A Hall speed sensor is a magnetoelectric sensor based on the Hall effect, Characterized by high sensitivity to magnetic fields, stable output signal, high frequency response, strong anti-electromagnetic interference capability, 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-structure speed sensors include: output signal high voltage, low voltage, duty cycle, period, rise time, fall time, number of pulses per period, 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 calculation, and graphical or tabular display of test results are increasingly favored by automotive speed sensor manufacturers. A comprehensive testing device developed for performance measurement of commonly used Hall-effect vehicle speed sensors. Based on cost considerations, the high-speed counter port of a microprocessor is used for data acquisition from the vehicle speed sensor, and software control is used to implement calculation and graphical display processing of the acquired data. The completed testing device offers advantages such as high testing precision, reliable data communication, a user-friendly graphical interface, strong anti-interference capability, a simple and intuitive testing process, and low system development cost, and 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 adopts a Hall sensor, which is primarily 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 its discovery in 1879, but its application began in the 50s of this century, Due to the rapid development of microelectronics, it has gained attention and widespread adoption, 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 performance characteristics, such as: standard type, high sensitivity type, low temperature coefficient type, temperature and magnetic measurement type, and switching 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 applied in various industrial fields, including non-electrical quantity measurement and automatic control, computer devices, and modern military technology.

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