German SENSOR UND sensor SENSOR UND model SENSOR UND price

SENSOR UND sensor, also known as a displacement sensor, is a type of sensor used to detect the distance to an object to perform a preset function, and has been widely applied. Main products include mobile phone proximity sensors and long-distance measurement sensors, which are used in smart belts. Proximity sensors can be classified into optical proximity sensors, infrared proximity sensors, ultrasonic proximity sensors, and others based on their working principles. Most proximity sensors used in mobile phones are infrared proximity sensors, which have an infrared emitting tube and an infrared receiving tube. When the infrared ray emitted by the emitting tube is received by the receiving tube, it indicates that the distance is close, and the screen needs to be turned off to prevent accidental operation. When the receiving tube does not receive the infrared ray emitted by the emitting tube, it indicates that the distance is far, and there is no need to turn off the screen. The working principles of other types of proximity sensors are similar; they also determine the distance by emitting and receiving a certain substance, such as ultrasonic waves or light pulses.

SENSOR UND sensor features

Currently, baffles can be designed according to the water flow rate to reduce the water resistance generated when water flows through the flow sensor, thereby reducing the head loss in the water system. However, baffles still suffer from fatigue due to long-term impact by water flow, and even if the flow value is calibrated at the factory, setpoint drift may occur. They are usually used in places where precise protection of the flow value is not required, i.e., for break-flow protection against sudden interruption of water flow in pipes. There are very few designs specifically for water-source heat pump units in China. The baffle type is specifically developed for water flow monitoring in water-loop/ground-source heat pump air conditioning units. It is equipped with different baffles for different pipe diameters, and the water resistance of each baffle does not exceed 0.5 meters of water column, which is significantly lower than that of target-type sensors. Each baffle-type flow sensor is equipped with pipe fittings identical to those of the water-loop heat pump unit's water pipes. Only connection to the water pipe is required on-site, without any modification to the baffle. In addition, the pressure rating of the baffle-type flow switch is greater than 25bar, making it a low-cost flow switch for water-loop heat pump units with low water flow requirements. Feedback from use in water-loop/ground-source heat pump units shows that differential pressure switches can effectively identify problems in the on-site installation of water pipelines for water-loop heat pump units, completely avoiding heat exchanger freezing caused by low water flow. Flow sensors can also protect against heat exchanger freezing caused by reduced water flow due to clogged water filters. Additionally, water pipeline differential pressure switches do not carry the risk of fatigue failure associated with target flow switches. Especially when there is a small amount of air in the water pipeline, the flow sensor operates very stably without floating issues similar to those of target flow switches. Feedback from years of use has not revealed any faults in the differential pressure switch itself.

SENSOR UND sensor principle

Basic principles and types of ultrasonic flowmeters: When ultrasonic waves propagate in a flowing fluid, they carry information about the fluid's flow velocity. Therefore, the fluid's flow velocity can be detected by receiving the ultrasonic waves, and then converted into flow rate. Based on the detection method, ultrasonic flowmeters can be divided into different types, such as transit-time difference method, Doppler method, beam deflection method, noise method, and correlation method. Ultrasonic flowmeters are non-contact instruments that have only begun to be applied in the last decade or so with the rapid development of integrated circuit technology. They are suitable for measuring fluids that are difficult to contact and observe, as well as large-diameter pipe flows. When linked with a water level gauge, they can measure the flow of open water. Using ultrasonic flow measurement does not require installing measuring elements in the fluid, so it does not change the flow state of the fluid or generate additional resistance. Installation and maintenance of the instrument do not affect the operation of the production pipeline, making it an ideal energy-saving flowmeter. Industrial flow measurement generally faces difficulties in measuring large pipe diameters and high flow rates. This is because general flowmeters encounter manufacturing and transportation difficulties as the measurement pipe diameter increases, leading to higher costs, greater energy loss, and installation challenges. Ultrasonic flowmeters avoid all these disadvantages. Since various ultrasonic flowmeters can be installed outside the pipe for non-contact flow measurement, the instrument cost is basically unrelated to the diameter of the measured pipe. In contrast, the cost of other types of flowmeters increases significantly with increasing diameter. Therefore, the larger the diameter, the more superior the cost-performance ratio of ultrasonic flowmeters compared to other types with similar functions. They are considered better instruments for large-diameter flow measurement. Doppler method ultrasonic flowmeters can measure the flow of two-phase media, so they can be used for measuring dirty flows such as sewage and drainage. In power plants.

SENSOR UND sensor selection

When selecting a flow sensor, users should choose the appropriate sensor according to their own needs. Many users have different requirements for the sensors they use, so the standards they select also vary. If professional data and results are required, national standards should be selected. However, if it is just for a simple analysis as an instrument within an enterprise, enterprise standards can be selected. If you are purchasing a flow sensor, you must consider carefully and choose sensors with guaranteed quality and good usability. Many people assume that new sensors have higher technology, which is a very one-sided view. New products must possess mature technology to be considered good products. In many economic sectors, accurate flow measurement has become very important. Nowadays, sensors are basically used to measure flow volume. Sensors sense fluid flow and convert it into usable output signals. Installing sensors makes operation simpler and more convenient. The quantity of flowing objects passing through per unit time is called flow rate. Different flow sensors are used for different objects, and flow sensor types are often distinguished by the measured medium and the measurement method. Flow sensors are generally used for the flow of media fluids in industrial pipelines. Under normal circumstances, there are various media such as gas, liquid, and steam. Several types of flow sensors can be universal for these various media. The first type is the vortex flow sensor. Another type is the ultrasonic flow sensor. With the development of ultrasonic technology, ultrasonic flow sensors can generally measure the flow of most flowing objects. Ultrasonic flow sensors have various measurement methods, each with its own characteristics. We should select based on factors such as the properties of the measured fluid, flow velocity distribution, pipeline installation location, and accuracy requirements. Since industrial flow measurement generally faces difficulties in measuring large pipe diameters and high flow rates (because general flow sensors encounter manufacturing and transportation difficulties, higher costs, and greater energy loss as the measurement pipe diameter increases), ultrasonic flowmeters avoid all these disadvantages. The flow measurement accuracy of ultrasonic flow sensors is hardly affected by parameters such as the temperature, pressure, viscosity, and density of the measured fluid. They can also be made into non-contact and portable measuring instruments, thus solving the flow measurement problems of strongly corrosive, non-conductive, radioactive, and flammable/explosive media that are difficult to measure with other types of instruments.

Weidou Intelligent Technology specializes in selling German SENSOR UND sensors, SENSOR UND proximity sensors, SENSOR UND distance sensors, SENSOR UND vision sensors, SENSOR UND displacement sensors, SENSOR UND load cells, SENSOR UND speed sensors, SENSOR UND photoelectric sensors, SENSOR UND position sensors, SENSOR UND angle sensors, SENSOR UND tactile sensors, SENSOR UND temperature sensors, SENSOR UND pressure sensors, SENSOR UND flow sensors, SENSOR UND level sensors, SENSOR UND motion sensors, SENSOR UND process sensors. Original imports from Germany. Welcome customers to inquire and order.