OD9300 Low Frequency Vibration Sensor

The OD9300 low-frequency vibration speed sensor has an integrator that outputs a displacement voltage signal. It integrates the vibration velocity signal into a displacement signal and outputs it. It is mainly used to measure the vibration of hydraulic turbine generator sets, low speed rotating machines, engineering buildings and bridges. The vibration measured by this sensor is absolute vibration with respect to free space. Its output voltage signal is proportional to the vibration amplitude.
Fundamental
The OD9300 low-frequency vibration sensor is an inertial sensor. It uses the principle of magnetic induction to convert vibration signals into electrical signals. Mainly by the magnetic circuit system, inertial mass, spring damping and other parts. A magnet is rigidly fixed in the sensor housing, and an inertial mass (coil assembly) is suspended from the housing by a spring element. When working, the sensor is installed on the machine. When the machine vibrates, the coil and the magnet relatively move within the working frequency range of the sensor and cut the magnetic force line to generate an induced voltage in the coil. The voltage signal is proportional to the vibration velocity value of the measured object. This signal can be integrated and amplified to obtain the displacement signal.
Electrical characteristics
TM365 ultra-low frequency vibration sensor frequency response: 0.05 ~ 150Hz
Displacement output type sensitivity: 0.1, 0.2, 0.4, 1, 2, 4, 5, &nbsp8, 10mV/um
Speed ​​output type sensitivity: 40, 100, 400, 1000 (mV/mm/s
OD9300 low frequency vibration sensor, built-in integrator, output displacement voltage signal. It integrates the vibration velocity signal into a displacement signal and outputs it. It is mainly used to measure the vibration of hydraulic turbine generator sets, low speed rotating machines, engineering buildings and bridges. The vibration measured by this sensor is absolute vibration with respect to free space. Its output voltage signal is proportional to the vibration amplitude.
Fundamental
The OD9300 low-frequency vibration sensor is an inertial sensor. It uses the principle of magnetic induction to convert vibration signals into electrical signals. Mainly by the magnetic circuit system, inertial mass, spring damping and other parts. A magnet is rigidly fixed in the sensor housing, and an inertial mass (coil assembly) is suspended from the housing by a spring element. When working, the sensor is installed on the machine. When the machine vibrates, the coil and the magnet relatively move within the working frequency range of the sensor and cut the magnetic force line to generate an induced voltage in the coil. The voltage signal is proportional to the vibration velocity value of the measured object. This signal can be integrated and amplified to obtain the displacement signal.
The overall design of the sensor ensures that it has the following characteristics of use:
&nbsp1. The sensor has a very low frequency of use and can be adapted to low speed rotating machines.
& nbsp2. Compared to other types of vibration sensors, OD9300 sensors have lower output impedance and better signal-to-noise ratio. It works with a general purpose ac voltmeter or oscilloscope. No special requirements for the output plug and transmission cable, easy to use.
&nbsp3. Friction-free moving elements have been eliminated from the sensor design, so the service life is relatively long.
&nbsp4. The sensor has a certain resistance to lateral vibration (less than 10g)
Main Specifications
&nbsp1. Frequency Response Range: 0.5Hz to 200Hz (-3dB)
&nbsp2. Sensitivity: 8mV/μm±5%, 5mV/μm±5%, 4mV/μm±5% (or adjusted according to user requirements)
&nbsp3. Range: ±1mm (±2mm, ±3mm, etc.)
&nbsp4. Linearity: <2%
&nbsp5. Maximum output voltage: 8V (single peak)
&nbsp6. Operating temperature range, -30°C-80°C
&nbsp7. Working direction: H horizontal & nbspV vertical
&nbsp8. Operating power: ±12VDC
&nbsp9. Installation method: Fix with 2 M5 screws at the circumference of Φ56.
OD9300 Low Frequency Vibration Sensor Technical Specifications Frequency Range: 10~300Hz
Sensitivity: 30.0mv/mm/s±2mv
Force the output voltage and provide signals to the monitoring instrument to predict and alarm mechanical faults.
Sensitivity: 20mV/mm/S±5%
Frequency response: 5 ~ 300Hz ± 5%
Natural frequency: about 12Hz
Amplitude limit: 2mm (peak-to-peak)
MLV-8 vibration speed sensor maximum acceleration: 10g
Installation method: vertical or horizontal
Temperature range: -30°C~120°C
Relative Humidity: Up to 95% non-condensing and no strong electromagnetic field interference around
Dimensions:φ35×72mm

Acceleration: 8g
Measuring range: 2mm(pp)


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SDJ-3BS, SDJ-3LS vibration monitoring and protection device ST-2G ST-A2-B3 vibration environment: -25 ~ 100 °C
Measurement method: vertical, horizontal dimensions: φ35×65
1) Basic test conditions: NE3601, BVM-3600 vibration speed sensor temperature: 20°C±5°C
Relative humidity: OD9300 low-frequency vibration speed sensor vibration speed sensor probe sensitivity: 30.0mv/mm/s±2mv
Acceleration: 8g
Measuring range: 2mm(pp)
1) Basic test conditions: NE3601, BVM-3600 vibration speed sensor temperature: 20°C±5°C
Relative Humidity: 0D9300H Low Frequency Vibration Sensor

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