Zhj-402-a03 two-wire vibration velocity sensor

Zhj-402-a03 two-wire vibration velocity sensor

Product Description:

Vibration velocity sensors are mainly used to measure the vibration of bearings, and in rare cases, they are also used to measure the vibration of shafts. They are mainly installed on the bearing covers of various rotating mechanical devices. It integrates traditional piezoelectric acceleration sensors and charge amplifiers, which can be directly connected to recording display and acquisition instruments, greatly simplifying the testing system and improving the accuracy and reliability of testing. It is applied in fields such as railway bridges, construction, machinery, aerospace, and water conservancy.

Features:

1. Two wire output 4-20mA;

2. Save the cost of compensating wires and installing temperature transmitters;

3. Long service life;

4. Automatic compensation for cold end temperature and non-linear correction circuit

5. It can output the true peak value of acceleration, the true effective value of velocity, and the peak peak value of displacement for vibration, with a three wire output and a 4-20mA current signal. It can also output the dynamic waveform of vibration. Especially suitable for long-term conditions in harsh environments.

Working Principle:

A vibration velocity sensor utilizes the principle of magneto electric induction to convert vibration signals into electrical signals. It mainly consists of a magnetic circuit system, inertial mass, spring, and other components. There are fixed magnets and inertial masses in the sensor housing, and when we use spring elements, we can suspend them on the housing. During work, sensors can also be installed on the machine when it generates vibrations. If within the working frequency range of the sensor, the coil and magnet will undergo corresponding relative motion, cutting magnetic field lines, and generating corresponding induced voltage inside the coil, which is proportional to the vibration velocity value. Paired with secondary instruments, it can display the magnitude of vibration velocity or displacement, and also transmit it to other secondary instruments and AC voltmeters for measurement.

What is the difference between a vibration transmitter and a vibration sensor

In the automatic detection and control of production processes, with the popularization of computer distributed control systems (DCS) and the improvement of process automation, the application of vibration transmitters is becoming increasingly widespread. Intelligent vibration transmitters have a wide range of application prospects in online detection of the operating conditions of power machinery, research on the vibration characteristics of vibrating objects, or determination of vibration modes.

The general terminology for sensors includes corresponding definitions for sensors, transmitters, and vibration sensors. Among them, sensors are devices or equipment that can sense the measured data and convert it into usable output signals according to certain rules. They are usually composed of sensitive components and conversion units. When the output is a specified standard signal, it is called a transmitter. A vibration sensor is a sensor that can sense mechanical motion vibration parameters (mechanical vibration velocity, frequency, acceleration, etc.) and convert them into usable output signals. Therefore, a vibration transmitter is a device or apparatus that converts mechanical motion vibration parameters (mechanical vibration velocity, frequency, acceleration, etc.) into specified standard output signals.

A vibration transmitter typically consists of two parts: a vibration sensor and a signal conditioning unit. Vibration sensors are mainly composed of vibration sensitive units; The signal conditioning unit is mainly composed of a measurement unit, a signal processing and conversion unit, and some vibration transmitters have a display unit.

Zhj-402-a03 two-wire vibration velocity sensor

Some products of Hubei Kaihang Company:

HD-YD-920 piezoelectric acceleration sensor
SG-2W-A00-B00-C00-K00 High Temperature Vibration Sensor
HCZ-S2-ZK Vibration Speed Sensor
HTD-6-A100 six wire displacement sensor
CGZ7G speed sensor
HTKH-1700 Positive and Negative Rotation Speed Monitoring Instrument
Z4-3002-106 RF admittance level gauge
505-1110-002-1 RF admittance level gauge
UP01052100 RF admittance level gauge
UL01010030 RF admittance level gauge
PLL13B60DG21 RF admittance level gauge