Magnetic Speed ​​Vibration Sensor SYMTV-20-01-01-10-02-03-01
Ni Based Powder,Inconel 718 Powder,Nickel Base Powder,Inconel 625 Powder Luoyang Golden Egret Geotools Co., Ltd , https://www.xtcalloypowder.com
Can be used to measure the vibration of a bearing housing, housing or structure. The vibration measured by this kind of sensor is relative to the absolute vibration of free space, and its output voltage is proportional to the vibration speed. Therefore, it is also called a speed type vibration sensor. It can integrate the speed into the displacement amount and the SYZV series intelligent vibration monitor or After the transmitter is connected, it is possible to measure the absolute (relative to free space) vibration of the bearing cover (bush), housing or structure.
The rotor supported by the rolling bearing will have sufficient vibration to transmit to the bearing seat and be mounted on the bearing seat or a speed sensor close to the bearing housing.
Features:
â–² Adopting the dynamic coil technology, the internal motion coil cuts the magnetic force line to provide a single peak value of the voltage output that is directly proportional to the vibration velocity of the measured body. The dynamic coil sensor has better sensitivity to shock impact or pulse excitation. Application selections are used to predict and alarm mechanical failures.
It can be used to measure the absolute vibration of a bearing housing, housing or structure with respect to free space. Its output voltage is proportional to the vibration speed, so it is also called a speed-type vibration sensor. The output can be the magnitude of the speed value, or it can be converted into the displacement signal output after the integral of the speed. This measurement can be used to evaluate the overall operating conditions of rotating or reciprocating mechanisms.
Most of the most common mechanical vibration problems stem from the rotor. Such as imbalance, misalignment, friction, etc. However, for some machines, the vibration of the shaft is almost completely transmitted to the bearing shell. In this case, the vibration of the bearing shell (measured using a speed sensor mounted on the housing) can be measured and provided for the comprehensive work of the machine. Meaningful information. These machines include: machines with rolling bearings and machines with oil film sliding bearings.
For most machines, for vibration measurements, it is best to use an eddy current sensor that can directly detect the actual vibration of the shaft in a non-contact manner. However, due to various reasons (installation restrictions and environmental factors, etc.), it is inconvenient to install eddy current sensors. For such machines, if the vibration of the shaft is transmitted to the bearing shell, the mechanical vibration can be adopted. A speed sensor mounted on the bearing performs the measurement.
The overall design of the sensor ensures that it has the following characteristics of use:
(1) Its output signal is proportional to the speed of vibration, so it can give consideration to high frequency, intermediate frequency and low frequency applications for vibration measurement. And meet the current international standard (ISO) requirements for the assessment parameters of rotating machinery.
(2) Compared with other types of vibration sensors, sensors have lower output impedance and better signal-to-noise ratio. It can work with general AC voltmeters or oscilloscopes, and has no special requirements for output plugs and cables. It is easy to use.
(3) The sensor has a low frequency of use and can be applied to a low-speed rotating machine.
(4) The sensor design eliminates frictional moving elements and is therefore flexible enough to measure small vibrations. (0.01μm)
The sensor has a certain resistance to lateral vibration. (Not more than 10g peak-to-peak value)
The vibration measured by this kind of sensor is relative to the absolute vibration of free space. Its output voltage is proportional to the vibration speed. Therefore, it is also called a speed type vibration sensor, and the speed can be converted into displacement by integral. It is directly installed on the outside of the machine, so it is extremely easy to use and maintain. Under some special conditions, for some reason (such as installation conditions and environmental factors, etc.), it is impossible to install eddy current sensors. For this type of machinery, if the vibration of the shaft can be mostly transmitted to the bearing seat, its vibration Measurements can be made using a speed sensor mounted on the bearing housing. However, for most sliding bearing machines, the shaft vibration is usually attenuated or distorted when it is transmitted to the bearing seat. Therefore, the eddy current sensor is used to directly measure the vibration of the shaft and is more accurate and comprehensive. Widely used in absolute vibration monitoring of large rotating machinery equipment in power, petroleum, chemical, steel, metallurgy and other industries