German MSR TRAFFIC sensor, MSR TRAFFIC model, MSR TRAFFIC price

MSR TRAFFIC sensor precisely measures the actual displacement of the detected product by detecting the absolute position of the movable magnetic ring through internal non-contact measurement and control technology; the high precision and high reliability of this sensor have been widely applied in thousands of practical cases. Since the movable magnetic ring used for position determination and the sensitive element do not come into direct contact, the sensor can be used in extremely harsh industrial environments and is not easily affected by oil stains, solutions, dust, or other contaminants. In addition, the sensor uses high-tech materials and advanced electronic processing technology, enabling it to operate in high-temperature, high-pressure, and high-vibration environments. The sensor output signal is an absolute displacement value; even if the power supply is interrupted and reconnected, data will not be lost, and there is no need to re-zero. Since the sensitive element is non-contact, continuous repeated detection will not cause any wear to the sensor, greatly improving detection reliability and service life.

MSR TRAFFIC sensor classification

1) Contact sensors: The contacts of contact sensors are activated 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 hits a limit switch during motion, its internal contacts activate 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 "action" 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 piston stroke control for hydraulic and pneumatic cylinders.

MSR TRAFFIC sensor working principle

The crankshaft position sensor is usually 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 it installed inside the distributor. It is one of the most important sensors in the control system. Its functions include: detecting engine speed, hence it is also called a speed sensor; detecting the top dead center (TDC) position of the piston, hence it is also called a TDC sensor, including detecting the TDC signals for each cylinder used for ignition control and the TDC signal for the first cylinder used for sequential fuel injection control.

MSR TRAFFIC sensor industry applications

1) Brushless DC motor: The position sensor is one of the three main components of a brushless DC motor system and is the main feature distinguishing it from a brushed DC motor. 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 to control their conduction and cutoff. This causes 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 receives 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 generated by the stator windings, thereby eliminating the need for position sensors, the back EMF signal is too weak to be detected at low speeds during motor startup. 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 motor 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 controlling valve timing and input it to ECU, allowing ECU to identify the compression TDC of cylinder 1, thereby performing 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 called a cylinder identification sensor.

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