German Pil sensors, Pil models, Pil prices

The Pil sensor is used to detect angles. It has a hole in its body that can accommodate a LEGO axle. When connected to the RCX, the angle sensor counts once for every 1/16 rotation of the axle. When rotating in one direction, the count increases; when the direction of rotation changes, the count decreases. The count is related to the initial position of the angle sensor. When the angle sensor is initialized, its count value is set to 0; if necessary, you can reset it via programming.

Pil sensor classification

1) Contact sensors: The contacts of contact sensors are actuated by the contact and compression of two objects. Common types include limit switches and two-dimensional matrix position sensors. Limit switches have a simple structure, reliable operation, and low cost. When an object in motion 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 on the inner side of 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. There are many types of proximity switches, mainly including 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 piston stroke control for hydraulic and pneumatic cylinders.

Pil 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. In early vehicle models, they were also 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; and detecting the top dead center (TDC) position of the piston, hence they are also called TDC sensors. This includes detecting the TDC signals for each cylinder used to control ignition, and the TDC signal for the first cylinder used to control sequential fuel injection.

Pil 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 electrical signals, 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 as the rotor position changes, 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 the 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 also detect rotor position via the back electromotive force (back-EMF) generated in the stator windings, thereby eliminating the need for position sensors, the rotational speed is too low during motor startup, making the back-EMF signal too weak to detect. 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 to 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 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. In addition, the camshaft position signal is used to identify the first ignition timing during engine startup. 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 Pil sensors, Pil proximity sensors, Pil distance sensors, Pil vision sensors, Pil displacement sensors, Pil torque sensors, Pil speed sensors, Pil photoelectric sensors, Pil position sensors, Pil angle sensors, Pil tactile sensors, Pil temperature sensors, Pil pressure sensors, Pil flow sensors, Pil level sensors, Pil motion sensors, and Pil process sensors. Original imports from Germany. Welcome inquiries and orders from users.