Which manufacturer s product is good for vibration sensors

The quality of a good vibration sensor company is not only based on the product, but also on many factors such as after-sales, transportation, and use costs. It is recommended to compare several companies. Shanghai Lezhen detection technology can be learned.

Shanghai Lezhen Testing Technology Co., Ltd. is a high-tech enterprise dedicated to the exploration and research of rotating machinery monitoring and protection equipment. Specializing in the production of eddy current displacement sensors, bearing vibration sensors, speed sensors, integrated vibration transmitters, integrated eddy current sensors, shaft displacement transmitters, piezoelectric vibration transmitters, secondary instruments, calibration equipment and bearing vibration, shaft vibration, axial displacement, water machine vibration, water machine ferry, expansion difference, forward and reverse speed and other monitoring and protection instruments. The company's business philosophy is "to survive by quality, to develop by reputation..."

The quality of the vibration sensor depends on the size of the vibration, which generally refers to the strength of the vibration, but also includes the speed, acceleration, displacement, error, etc. of the vibration. When choosing, it is necessary to choose according to certain criteria. At the same time, its work efficiency, the ability to convert mechanical quantities should be used as the selection criteria, and the material, magnetic field, composition and other factors of the test object should also be considered.

The PA LAMiii-01 series of triaxial accelerometers is a sensor for accurate measurement of triaxial acceleration in space. Each accelerometer in the three axes uses a high-precision MEMS chip with a self-test function to realize a built-in-test (bit). It can be used for automotive measurement and control, inertial navigation, ** monitoring, medical equipment, tilt, speed and position measurement, vibration and shock test bench acceleration measurement and other systems.

The development of modern society is getting faster and faster, and the development of informatization is also in the high-speed development, especially in the highly developed modern industry, the development of modern testing technology in the direction of digitalization and informatization has become an inevitable development trend, and the front end of the test system is the sensor. The development of sensors is advancing with each passing day, and digitalization, multi-function and intelligence are important characteristics of the development of modern sensors. But there are still many people who don't know what types of vibration sensors there are, so let's take a long look at them.

1. Relative motorized sensor.

The relative electric sensor is a displacement sensor from the principle of mechanical reception, because it is applied in the electromechanical conversion of the original cave training is the electromagnetic induction law, and the electric force generated is proportional to the measured vibration velocity, so it is actually a speed sensor.

2. Eddy-current sensor.

An eddy-current sensor is a relatively non-contact sensor that measures the vibration displacement or amplitude of an object through the change in distance between the sensor tip and the object being measured.

3. Inductive sensor.

An inductive sensor converts a change in the measured mechanical vibration parameters into a change in the electrical parametric signal. Therefore, there are two forms of inductive sensors, one is variable clearance and the other is variable permeability area.

4. Capacitive sensor.

There are generally two types of capacitive sensors, i.e., variable gap type and variable common area type.

5. Inertial electric sensor.

The inertial electric sensor consists of a fixed part, a movable part and a support spring part.

6. Piezoelectric accelerometer YT-JB3

The mechanical receiving part of the piezoelectric accelerometer is the principle of inertial acceleration mechanical nanofront, and the electromechanical part uses the positive piezoelectric effect of the piezoelectric crystal.

7. Piezoelectric force sensor.

Piezoelectric sensors have the advantages of wide frequency range, large dynamic range, small size and light weight.

8, Impedance head YT-SHK

Its function is to measure the excitation force at the point of force transfer and measure the motion response of that point at the same time.

9. Resistance strain gauge sensor.

A resistive strain sensor converts the measured amount of mechanical vibration into a change in the resistance of the sensing element.

These are the classification of vibration sensors, which can be roughly divided into nine categories, in modern industrial society, sensors are the soul of the entire test system, and are listed as cutting-edge technologies by countries around the world, especially the rapid development of IC technology and computer technology in recent years, which provides a good and reliable scientific and technological foundation for the development of sensors, so it is still necessary for us to understand the knowledge of vibration sensors, and hope that through these we can really understand vibration sensors.

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A vibration sensor is an information detector that can sensitively sense ground tremors. It detects the target by picking up ground vibration waves with a vibration probe. Generally, the shock pickup is buried in the surface layer, and when people and vehicles pass near the burial place, the shock pickup can convert the ground vibration signal caused by the target into an electrical signal, and send it to the monitoring center after amplification.

The advantages of the vibration sensor: the first is high sensitivity and long detection distance. It can detect moving people up to 30 meters away and moving vehicles up to 300 meters away.

The second is that it consumes less energy, and a battery can last for several months. The third is that it can be laid out in a variety of ways, such as manual, airdrop, artillery launch, etc. The disadvantage of shock sensors is that they can only detect the target, but cannot discern the nature of the target.

The current miniature information processor vibration sensor has made up for this shortcoming. The second disadvantage of the vibration sensor is that its detection range is related to the terrain conditions, soil composition. The detection range is large under hard ground, the detection range is small in soft soil, and it is almost impossible to work in wet places.

At present, the more popular on the market is the node-type intelligent sensor, its integrated design, including the battery pack, high-sensitivity geophone and other internal structure, mainly used in energy and mineral exploration, natural disaster prevention and monitoring, engineering monitoring and other application fields, through the manufacture of the first wave, data collection, processing and application of intelligent sensors, generate schematic diagrams for geophysical exploration companies, etc.

Osmanthus Bluetooth router wireless solution, this solution does not need to connect all devices with wires, which can save a lot of cost, reduce complexity and optimize the system architecture, X1000 Bluetooth router can connect multiple devices at the same time and provide seamless connection up to 300 meters. By using a dedicated Bluetooth router to collect data, workers can remotely monitor the status of the machine, eliminating the need for staff to collect data from these sensors one by one from the field, thus saving even more labor costs. Osmanthus's IoT Access Controller (AC) manages each router in a unified manner, providing customers with a secure and easy-to-use management platform.

ABB has adopted Bluetooth routers as a motor vibration monitoring solution.

It is better to use Bentley's vibration detection device for large motors, and some general motors can be dispensed without, or a vibration detection device can be installed on the gearbox.

If the integrated sensor is directly used to monitor the bearing vibration, there is no need to use the transmitter, and the imported Wilcon PC420 is directly output from 4-20AM.

Shanghai Hengjian Intelligent Technology**** is a wireless vibration sensor based on the standard LoRaWAN protocol, which can test 3-axis acceleration, velocity, displacement, and temperature measurement. The vibration measurement accuracy is high, and the frequency response range can reach 6000Hz. Powered by a large capacity battery, a single battery can be used for more than a year.

A variety of models (HJ260, HJ290, etc.) are suitable for vibration monitoring, equipment safety monitoring, and higher requirements for maintenance applications. We tried it and it worked very well.

Vibration sensors are one of the most commonly used ground sensors. It uses a shock probe (also called a shock pickup) to pick up ground shock waves to detect targets. When used, the shock pickup is buried in the surface layer, and when the vibration caused by the moving target is transmitted to the shock pickup, the electromagnetic coil in it vibrates up and down, cutting the magnetic field formed by the permanent magnet.

According to the principle of electromagnetic induction, an induced electrical signal will be generated on the ** circle. This electrical signal is amplified and processed by the signal processing circuit, and then sent to the transmitter and sent by the antenna. The main advantages of the vibration sensor are the long detection distance and high sensitivity.

In general, it is possible to measure people moving within 30 meters and vehicles within 300 meters. Nawang section.