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BEIIDEACOD sensors, also known as linear sensors, are linear devices based on metallic induction. The function of the sensor is to convert various measured physical quantities into electrical signals. In production processes, displacement measurement is generally divided into two types: measuring physical dimensions and measuring mechanical displacement. Depending on the form of transformation of the measured variable, displacement sensors can be divided into analog and digital types. Analog types can be further divided into property-based and structural types. Commonly used displacement sensors are mostly analog structural types, including potentiometric displacement sensors, inductive displacement sensors, synchros, capacitive displacement sensors, eddy current displacement sensors, Hall effect displacement sensors, etc. An important advantage of digital displacement sensors is that they facilitate direct input of signals into computer systems. This type of sensor is developing rapidly and its applications are becoming increasingly widespread.

BEIIDEACOD sensor classification

1) Contact sensors: The contacts of contact sensors actuate when two objects come into contact and press against each other. Common examples include limit switches and two-dimensional matrix position sensors. Limit switches have a simple structure, reliable operation, and low cost. When an object moves and encounters a limit switch, its internal contacts actuate to complete control. For example, if limit switches are installed at both ends of the X, Y, and Z axes of a machining center, the travel range can be controlled. Two-dimensional matrix position sensors are installed inside mechanical grippers to detect the contact position with an object. 2) Proximity sensors: A proximity switch is a switch that emits an "actuation" signal when an object approaches within a set distance, without requiring direct contact with the object. There are many types of proximity switches, mainly electromagnetic, photoelectric, differential transformer, eddy current, capacitive, reed switch, and Hall effect types. The main applications of proximity switches on CNC machine tools include tool selection control for the tool turret, worktable travel control, and stroke control for hydraulic and pneumatic cylinder pistons.

BEIIDEACOD sensor working principle

Crankshaft position sensors are typically installed at the front end of the crankshaft (at the pulley), at the rear end near the large flywheel, or in the middle of the crankshaft. Early vehicle models also had them installed inside the distributor. They are one of the most important sensors in the control system. Their functions include: detecting engine speed, hence they are also called speed sensors; detecting the top dead center (TDC) position of the piston, hence they are also called TDC sensors. This includes detecting TDC signals for each cylinder used for ignition control, and the TDC signal for the first cylinder used for sequential fuel injection control.

BEIIDEACOD sensor industry applications

1) Brushless DC motors: The position sensor is one of the three main components of a brushless DC motor system and is the primary feature distinguishing it from brushed DC motors. Its function is to detect the position of the main rotor during motion, convert the position signal of the rotor magnet poles into an electrical signal, and provide correct commutation information to the logic switching circuit. This controls their conduction and cutoff, causing the current in the motor armature windings to commutate sequentially according to changes in rotor position, forming a stepwise rotating magnetic field in the air gap that drives the permanent magnet rotor to rotate continuously. Brushless DC motors require position sensors to measure rotor position. The motor controller uses the position sensor signals to synchronize inverter commutation with the rotor, driving continuous motor operation. Although brushless DC motors can detect rotor position via the back electromotive force (back-EMF) generated in the stator windings, thereby eliminating the need for position sensors, the back-EMF signal is too weak to be detected during startup due to low speed. Hall effect sensor chips used as position sensors for brushless DC motors are divided into switching and latching types. For electric bicycle motors, both types of Hall sensor chips can be used to accurately measure the position of the rotor magnets. The performance of brushless DC motors made with these two types of Hall sensor chips, including output power, efficiency, and torque, shows no difference, and they are compatible with the same motor controllers. The application of position sensors reduces motor operating noise, improves motor life and performance, and achieves energy savings. The application of position sensors undoubtedly provides strong impetus to the development of the motor market. 2) Crankshaft and camshaft: The function of the position sensor is to collect crankshaft rotation angle and engine speed signals and input them into the electronic control unit (ECu) to determine ignition timing and fuel injection timing. To distinguish it from the crankshaft position sensor (CPS), the camshaft position sensor is generally denoted by CIS. The function of the camshaft position sensor is to collect the position signal of the camshaft controlling valve timing and input it to ECU, allowing ECU to identify the compression TDC of cylinder 1, thereby enabling sequential fuel injection control, ignition timing control, and knock control. Additionally, the camshaft position signal is used to identify the first ignition timing during engine start-up. Because the camshaft position sensor can identify which cylinder's piston is about to reach top dead center, it is also called a cylinder identification sensor.

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