German Idec sensors, Idec models, Idec prices

Idec sensors are the direct source of information for the entire machine vision system, mainly consisting of one or two image sensors, sometimes accompanied by light projectors and other auxiliary equipment. The main function of vision sensors 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 the latest digital cameras.

Idec sensor classification

1) Laser speed measurement: With the rise of precision manufacturing and the demand for cost savings, non-contact speed sensors will gradually replace 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 LED light source; and one high-speed imaging port that achieves CCD area high-speed imaging comparison. By comparing images at two points in time within an extremely short period, it determines the distance the measured object has moved, and combines this with internal algorithms to output 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)LED light emission port emits laser towards the measured object, which reflects to the (2) camera reception port. After receiving the signal, it is transmitted to the signal processor, which calculates its speed through algorithms. ZLS-Px aberration speed sensors can simultaneously measure speed and length in two directions. They can not only detect whether the measured object has stopped but also detect its direction of motion. Mount 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 speed of the rotating object. 2) Radar speed measurement: Traditional speed measurement mostly involves rotational motion speed measurement and linear motion speed measurement. However, there are many irregular speed measurements in industrial automation, such as athlete motion speed measurement, traffic vehicle speed measurement, and golf ball speed measurement. Radar speed sensors can meet these requirements.

Idec 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 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, thus outputting 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. In this way, based on the number of holes or notches on the disk, the rotational speed of the shaft under test can be measured. The number of holes or notches on the disk is usually set to still, therefore, for each revolution of the shaft under test, the photoelectric converter can output 60 pulse signals. If the time base signal of the electronic counter is taken as 1s, the rotational speed of the shaft under test can be read directly. The principle of a reflective speed sensor is the same as that of a transmissive one; it converts changes in received light into changes in electrical signals via a phototube, but it obtains pulse signals through light reflection, typically by adhering reflective material to the measurement area of the shaft under test to form a reflective surface. Commonly used reflective materials are special-purpose speed-measuring reflective paper tapes (adhesive tapes), aluminum foil or other reflective materials can also be used as substitutes, and sometimes white paint can be applied to the measurement area to serve as a reflective surface. The emitter 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 light, and outputs the corresponding electrical signal to the electronic counter, thereby measuring the rotational speed of the measured shaft. The waveform of the output signal from the photoelectric speed sensor is relatively regular, close to a standard square wave, with almost no interference signals generated. However, for the transmissive type, vibration can reduce the lifespan of the light source, so it is not suitable for use in conditions with strong vibration. The reflective type has no mechanical connection with the measured shaft, making it convenient to use.

Idec 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 Hall-effect structures. Hall speed sensors are magnetoelectric sensors based on the Hall effect, characterized by high sensitivity to magnetic fields, stable output signals, high frequency response, strong anti-electromagnetic interference capability, simple structure, and ease of use. They mainly consist of permanent magnets with specific pole pairs (generally 4 or 8 pairs), Hall elements, rotating mechanisms, and input/output connectors. Their 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 voltage changes in the Hall element. Subsequent circuit processing forms stable pulse voltage signals as the output 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 number of pulses per cycle. To ensure product performance reliability, these parameters must be quantitatively tested before leaving the factory. Integrated and intelligent, highly 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 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, user-friendly graphical interface, strong anti-interference capability, 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) Speed sensors for belt conveyors adopt Hall sensors, which primarily utilize the Hall effect to achieve magnetoelectric conversion. The Hall effect was discovered in 1879 and has a development history of over 100 years, but 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, various types of Hall elements can now be produced, such as general-purpose, high-sensitivity, low-temperature-coefficient, temperature/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 are widely used in various industrial fields, including non-electrical quantity measurement, automatic control, computer devices, and modern military technology.

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