Quotation for high-precision three wire speed sensor

Three wire speed sensor

The installation of the probe requires careful consideration of the installation environment and requirements. Generally, it is installed within an appropriate gap range, as shown in the product manual. Except for the debugging behaviors allowed in the product manual, it is strictly prohibited to carry out live disassembly and wiring of sensors; The wiring terminal must be firmly pressed and not loose; After wiring is completed, check that the cables and terminals are in good contact without short circuits before powering on. To confirm the working power supply of the sensor, environmental protection measures should be taken for the signal connection cable according to the on-site environment. According to the principle of electromagnetic induction, the frequency f of the AC voltage signal generated by the sensor is the product of the number of gear teeth Z and the gear speed n. By measuring the frequency, the speed can be obtained. The smaller the gap between the sensor and the detection gear, the lower the speed that can be measured, usually with a gap of 0.5-1.2mm. It is recommended to use involute gears for the tooth profile of the detection gear; The size of the detection gear is determined by the modulus (M), which is the parameter value that determines the size of the gear. It is recommended to use a gear disc with a modulus ≥ 2 and a tooth top width of 2mm or more; The material for detecting gears is made of strong magnetic materials (i.e. materials that can be attracted by magnets)

Overview of Three Wire Speed Sensor
Sensors can measure the distance between the measured metal conductor and the probe surface in a non-contact, high linearity, and high-resolution manner, both statically and dynamically. It is a non-contact linearization measurement tool. Eddy current sensors can accurately measure the static and dynamic relative displacement changes between the measured object (which must be a metal conductor) and the probe end face. In the state analysis, vibration research, and analysis measurement of high-speed rotating machinery and reciprocating motion machinery, multiple parameters of rotor vibration state can be continuously and accurately collected for non-contact high-precision vibration and displacement signals. Such as radial vibration, amplitude, and axial position of the shaft. Among all the fault symptoms related to the mechanical state, mechanical vibration measurement is qualitative because it contains information on amplitude, phase, and frequency simultaneously. Another advantage of mechanical vibration measurement is that it can reflect all mechanical damages and is easy to measure. From the theoretical analysis of rotor dynamics and bearing science, the motion state of large rotating machinery mainly depends on its core - the shaft. Eddy current sensors can directly and non-contact measure the state of the shaft, providing key information for early determination of mechanical problems such as rotor imbalance, misalignment, bearing wear, shaft cracks, and friction. Eddy current sensors are widely used in online monitoring and fault diagnosis of large rotating machinery due to their advantages such as good working reliability, wide measurement range, high sensitivity, high resolution, fast response speed, strong anti-interference ability, no influence from oil and other media, and simple structure.

ZA-H2 two-wire integrated speed sensor