German TYROLLER sensors, TYROLLER models, TYROLLER prices

TYROLLER sensors are the direct source of information for the entire machine vision system. They mainly consist of one or two image sensors, sometimes accompanied by light projectors and other auxiliary equipment. The main function of a vision sensor is to acquire the rawest images that the machine vision system needs to process. Image sensors can use laser scanners, line-scan and area-scan CCD cameras or TV cameras, as well as newly emerging digital cameras.

TYROLLER 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 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 imaging port that achieves high-speed CCD area imaging comparison. By comparing images at two points in time within an extremely short period, it determines the distance the measured object has moved. Combined with internal algorithms, the sensor outputs the object's speed 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 mounting screw holes. The (1) LED light emission port directs laser light at the measured object; after reflection, the signal reaches the (2) camera reception port. Upon receiving the signal, it is transmitted to the signal processor, which calculates the speed using algorithms. The ZLS-Px aberration speed sensor can simultaneously measure speed and length in two directions. It can not only detect whether the measured object has stopped but also determine 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 object. 2) Radar speed measurement: Traditional speed measurement mostly focuses on rotary motion speed and linear motion speed. 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.

TYROLLER sensor principle

A 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 disk blocks the light source, 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 a reflective speed sensor is similar to that of a transmissive sensor; it converts changes in received light into electrical signals via a phototube. However, it obtains pulse signals through light reflection, typically by attaching reflective material to the measurement area of the measured shaft to form a reflective surface. Common reflective materials include specialized speed-measuring reflective tape (adhesive tape), or aluminum foil and other reflective materials can be used as alternatives. Sometimes, white paint can be 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 pulsed light and outputs corresponding electrical signals to the electronic counter, thereby measuring the shaft's rotational speed. 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 sensors can reduce the lifespan of the light source, making them unsuitable for conditions with strong vibrations. Reflective sensors have no mechanical connection with the measured shaft and are easy to use.

TYROLLER 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 signals from speed measurement sensors will greatly affect 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 signals, 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. The magnetic field passing through the Hall element changes periodically, causing the Hall element's output voltage to change. Subsequent circuit processing forms a stable pulse voltage signal, which serves as the output signal of the speed sensor. Key electrical technical parameters of Hall-structure speed sensors include: output signal high voltage, low voltage, duty cycle, period, rise time, fall time, and pulses per cycle. 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 has been developed for performance measurement of common 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 collected data. 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 costs. It has good market promotion potential, indicating huge application prospects for speed sensors in vehicle speed detection. 2) Speed sensors for belt conveyors use Hall sensors, which utilize the Hall effect to achieve magnetoelectric conversion. The Hall effect was discovered in 1879 and has a development history of over 100 years. However, its application gained attention and widespread adoption in the 50s of this century due to the rapid development of microelectronics, leading to the continuous development of various Hall elements. China began increasing 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 standard type, high sensitivity type, low temperature coefficient type, temperature/magnetic measurement type, and switch-type Hall elements. Due to the characteristics of Hall sensors—high sensitivity, good linearity, high stability, small size, and high temperature resistance—they are widely used 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 TYROLLER sensors, TYROLLER proximity sensors, TYROLLER distance sensors, TYROLLER vision sensors, TYROLLER displacement sensors, TYROLLER torque sensors, TYROLLER speed sensors, TYROLLER photoelectric sensors, TYROLLER position sensors, TYROLLER angle sensors, TYROLLER tactile sensors, TYROLLER temperature sensors, TYROLLER pressure sensors, TYROLLER flow sensors, TYROLLER level sensors, TYROLLER motion sensors, and TYROLLER process sensors. All products are original imports from Germany. Customers are welcome to inquire and place orders.