Germany FRANZ JOSEF sensor, FRANZ JOSEF model, FRANZ JOSEF price

FRANZ JOSEF sensor precisely measures 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, enabling it to operate in high-temperature, high-pressure, and high-vibration environments. The sensor output signal is an absolute displacement value; even if the power supply is interrupted and reconnected, data will not be lost, and there is no need to re-zero. Since the sensitive element is non-contact, continuous repeated detection will not cause any wear to the sensor, greatly improving detection reliability and service life.

FRANZ JOSEF sensor classification

1) Laser speed measurement: With the rise of modern 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 the measured object moves is determined, and combined with the algorithm inside the sensor, the speed of the measured 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) is the fixing screw hole. The (1) LED light emission port emits laser light toward the measured object, 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 measured body has stopped but also detect the direction of motion of the measured body. Mount the sensor on a stable bracket to ensure that the rotation process of the rotating object does not produce excessive vibration, thereby allowing measurement of the rotation angle and rotational speed of the rotating 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 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.

FRANZ JOSEF 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, and it outputs an electrical pulse signal. When the light source is blocked by the disk, the reverse resistance of the phototube is very high, and there is no signal output at the output terminal. Thus, the rotational speed of the measured shaft can be determined 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 measured shaft allows the photoelectric converter to output 60 pulse signals. If the time base signal of the electronic counter is taken as 1s, the rotational speed of the measured shaft can be read directly. The principle of the reflective speed sensor is the same as that of the transmissive type; it converts changes in sensed light into changes in electrical signals 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 and other reflective materials can also be used as substitutes, and sometimes white paint can be applied to the measured 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 measured shaft rotates, the photoelectric element receives pulsed illumination 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 reduces the lifespan of the light source, making them unsuitable for conditions with strong vibration. The reflective type has no mechanical connection with the measured shaft and is convenient to use.

FRANZ JOSEF sensor industry applications

1) Modern cars are generally equipped with engine control, autonomous driving, ABS, TRC, automatic door locking, active suspension, guidance systems, electronic instruments, and other devices, all of which require vehicle speed signals. Therefore, the accuracy and stability of the output signal from the vehicle speed sensor 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, featuring 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 periodic changes in the magnetic field passing through the Hall element, which induces changes in the output voltage of the Hall element. Subsequent circuit processing forms a stable pulse voltage signal, which serves 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, and number of pulses per cycle. To ensure product performance and 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. 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 calculate and graphically display 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. It has good market promotion potential, so speed sensors will have huge application prospects in vehicle speed detection. 2) The speed sensor for belt conveyors adopts a Hall sensor, which is a sensor that utilizes the Hall effect to achieve magnetoelectric conversion. The Hall effect was discovered in 1879 and has a development history of more than 100 years, but its application gained attention and widespread adoption only in the 50s of this century due to the rapid development of microelectronics, leading to the continuous development of various Hall elements. China began to increase research on Hall elements in the 20s of the 70th century. After nearly several decades of research and development, it is now possible to produce Hall elements with various performances, such as general-purpose, high-sensitivity, low-temperature-coefficient, temperature-and-magnetic-field-measuring, and switching 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 FRANZ JOSEF sensors, FRANZ JOSEF proximity sensors, FRANZ JOSEF distance sensors, FRANZ JOSEF vision sensors, FRANZ JOSEF displacement sensors, FRANZ JOSEF load cells, FRANZ JOSEF speed sensors, FRANZ JOSEF photoelectric sensors, FRANZ JOSEF position sensors, FRANZ JOSEF angle sensors, FRANZ JOSEF tactile sensors, FRANZ JOSEF temperature sensors, FRANZ JOSEF pressure sensors, FRANZ JOSEF flow sensors, FRANZ JOSEF level sensors, FRANZ JOSEF motion sensors, FRANZ JOSEF process sensors. Original imports from Germany. Welcome inquiries and orders from users.