XS12JK-3P/Y Magnetic Resistance Speed Sensor

overview:

XS12JK-3P/Y Magnetic Resistance Speed SensorThe working mode of it determines its strong anti-interference ability, which can work in environments such as smoke, oil and gas, and water vapor.XS12JK-3P/YThe output signal of the magneto electric speed sensor is strong and has a wide measurement range. It can measure components such as gears, crankshafts, spokes, and rotating bodies with gaps on the surface.

XS12JK-3P/YThe maintenance cost of magneto electric speed sensors is relatively low, and the operation process does not require power supply. It relies on magneto electric induction to achieve measurement. At the same time, the operation of magneto electric speed sensors does not require mechanical action or lubrication. The magnetic electric speed sensor has a compact structure, small size, and easy installation and use, and can be used in conjunction with various secondary instruments.

XS12JK-3P/Y Magnetic Resistance Speed SensorAlso known as variable reluctance or variable magneto electric, it is a commonly used speed sensor with high cost-effectiveness and wide applications. Speed sensors can be used in industries ranging from low-cost consumer products to high-precision speed measurement and control of aircraft engines.

Technical Indicators:

DC resistance:

High resistance500Ω~600Ω

low resistance230Ω~300Ω

Insulation impedance: in500VDC time>50MΩ

Input frequency:20~10000Hz

Requirements for gear disc: high magnetic permeability ferromagnetic material;

model Number (diameter)/齿数）：≥2The tooth profile is either involute or evenly divided

Output waveform: approximate sine wave (involute gear)

Output amplitude: installation gap1mmThe20r/minWhen,>100mV(P-P）

Temperature range for use: Room temperature type:-40~120℃； High temperature type:-20~250℃

working principle:
The XS12JK-3P/Y reluctance speed sensor includes magnetic steel, soft magnetic armature, and coil inside. The magnetic field (magnetic field lines) is emitted from the magnet, passes through the armature and coil, and returns to the other end of the magnet from space. When a ferromagnetic tooth passes through the sensor end, the magnetic resistance of the magnetic circuit will change once, and an AC voltage signal will be induced inside the coil. If it is an involute gear, the induced voltage should be a sine wave.

According to the principle of electromagnetic induction, the AC voltage signal generated by the sensor has a frequency offIt's the number of teeth on the gearZRelated to gear speednThe product of frequency can be measured to obtain: rotational speedn(r/min)=signal frequencyf*60/number of teeth on gearZ.

According to the principle of electromagnetic induction, the amplitude of the AC voltage signal generated by the sensor is proportional to the speed at which the teeth pass through. The more teeth there are in the gear, the faster the speed, and the larger the signal amplitude. Therefore, the signal amplitude is very small at low speeds. But when the speed is high, the weakening magnetic field effect of the coil also increases, which in turn leads to a decrease in signal amplitude. So speed sensors are usually used for frequency20~10KHzMeasurement of rotational speed signal.