speed sensor

  A speed sensor is used to measure the rotation of an objectspeedConverted into electrical outputSensors.The speed sensor belongs to the indirect typeMeasurement deviceIt can be manufactured using mechanical, electrical, magnetic, optical, and hybrid methods. According to the different signal forms, speed sensors can be divided into analog and digital types.

definition

The speed sensor uses a magnetic sensitive resistor as the sensing element and is a new type of speed sensor. The core component uses a magnetic sensitive resistor as the detection element, and then undergoes a brand new signal processing circuit to reduce noise,More complete functions. Compared with the output waveforms of other types of gear speed sensors, the error and linear characteristics of the measured speed have good consistency.The sensing object is a magnetic material or a magnetic conductive material, such as magnetic steel, iron, and electrical steel. When a magnetic or magnetic material with protrusions (or indentations) on the object being measured rotates, the sensor outputs a pulse signal related to the rotation frequency to achieve the purpose of speed measurement or displacement detection.

The gear speed sensor has the following characteristics: 
high sensitivity high reliability long lifespan Triggering the signal for long distance can be achieved by using iron (soft) magnetic materials for long-distance transportation Strong anti-interference ability, good impact resistance and earthquake resistance  

Parameter Description

  Note: Gear size parameters: Gear outer diameter:99.3mmNumber of teeth:60Modulus:1.57 (The above dimensions are just one example, and the modulus is0.5to2Either way.)

When installing sensors, make the tail redLEDThe line connecting the root of the lead wire is perpendicular to the gear plane.

The sensor leads are respectively: brown is the power cord;Black is the ground wire;Blue represents the signal output line.

  Due to its convenient installation and good universality, it has been widely used in various fields. Especially in low-speed or ultra-low speed non-contact detection, there are characteristics that other sensors cannot achieve,This feature fills the gap in the speed measurement range of magneto electric sensors in China50-5000Hz。(The detection distance is only0.5mmThe proximity switch cannot detect small mold teeth)In non-contact detection at medium and high speeds, it can directly replace Hall switches.

Classification of methods

Laser type

Main functions and features

   Princeton Optics is the world's optical instrument;PR-870It uses the principle of laser reflection to obtain the signal of rotor rotation, which can measure the speed of the rotor. The characteristics are high resolution, long distance, wide practical range, wide frequency response, and high reliability. Equipped with an amplification and shaping circuit, the output is a square wave signal with stable amplitude, which can achieve long-distance transmission.

appearance

For sensor housing stainless steel material make.

The waterproof structure is simple, with strong pressure resistance and reliable sealing, and no waterproof adhesive is used.

Product Application

  Due to the stainless steel material used for the sensor housing, the sensor is sturdy and durable, mainly used in poor testing environments Intense vibration (such as engine, etc.). Used for measuring rotational speed Cycle Speed.

Related models: SZMB-3, SZMB-4, SZMB-5, SZMB-5-B, SZMB-5T