A preamplifier sensor is a device that can detect, convert, and transmit physical quantities (such as displacement, vibration, temperature, pressure, etc.) into electrical signals. It usually includes a probe section that can directly contact the measured object, as well as a front end section that contains all measurement circuits internally.
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330108-91-05 Proximitor Sensors are typically used in conjunction with eddy current displacement sensors to measure and monitor parameters such as displacement and vibration of rotating equipment.
The 330108-91-05 preamplifier sensor generates a high-frequency magnetic field through high-frequency current, which interacts with the metal surface on the rotating equipment to generate eddy currents, thereby changing the inductance of the original coil. This kind of impedance change is related to the gap change on the top metal surface of the probe, and can be used to measure parameters such as displacement and vibration.
Working principle of 330108-91-05 Proximitor Sensor:
Power supply and signal amplification:
The preamplifier provides the required power supply for the probe, usually a DC power supply, such as -24V DC.
The preamplifier amplifies the signal detected by the probe for subsequent processing and analysis.
Oscillation circuit and high-frequency magnetic field:
The oscillation circuit inside the 330108-91-05 preamplifier sensor generates high-frequency oscillation current.
The high-frequency oscillating current enters the built-in coil of the probe through the connecting cable, generating a high-frequency changing magnetic field in the probe.
Eddy current effect:
When the metal object being tested approaches the probe, a high-frequency magnetic field will generate eddy currents on the metal surface.
The direction of the magnetic field generated by eddy currents is opposite to the direction of the magnetic field in the probe coil, which changes the inductance of the probe coil.
Impedance changes and signal output:
The impedance change of the probe coil varies with the distance between the metal object being measured and the probe.
The 330108-91-05 preamplifier sensor detection circuit detects changes in the inductance of the probe coil and converts it into a voltage or current signal output.
Signal processing and monitoring:
The output voltage or current signal is further processed and converted through monitoring instruments.
According to measurement requirements, the DC part can be extracted for displacement detection, and the AC part can be used for vibration value detection.
Parameter impact:
The eddy current effect is related to multiple parameters, such as the conductivity, magnetic permeability, probe coil diameter, distance between the probe and the metal object being measured, oscillation frequency, etc.
The changes in these parameters will affect the measurement accuracy and performance of eddy current displacement sensors.
Installation and connection:
330108-91-05 Proximitor sensors typically use a box sealed design to shield external interference signals.
The power supply and output signal are connected through screw terminals, and the connection between the sensor and the preamplifier can be selected to be connected through LEMO plugs or screw terminals.
Performance characteristics of 330108-91-05 preamplifier sensors:
high-precision:
330108-91-05 Proximitor sensors typically have high accuracy and can capture small vibration changes, helping to predict potential mechanical faults.
For example, certain models such as EPRO 9200-0006n sensing probes can measure the vibration levels of equipment, mechanical components, or structures, which is crucial for early detection of equipment failures or imbalances.
Reliability:
330108-91-05 Proximitor Sensor Sensors are usually very reliable, have long lifespan, and can operate in harsh industrial environments.
They usually have fault tolerance, such as power supply, common terminal (signal ground), and output terminal. Any wiring error will not damage the preamplifier, and they have the functions of power supply error protection and output short circuit protection.
Widely applicable:
The 330108-91-05 Proximitor Sensor is suitable for various industries, including manufacturing, power, mining, oil, and natural gas, and is used to monitor the vibration of rotating equipment.
Proximitor sensing technology:
The 330108-91-05 preamplifier sensor is a key component of the vibration monitoring system, used to convert mechanical vibration into electrical signals for analysis and monitoring.
They can transform the detected displacement change signal into a linear voltage change proportional to displacement, with clear specifications for parameters such as range, sensitivity, and power supply voltage.
Data output:
Proximitor sensing probes typically output electrical signals, which can be analyzed and displayed by connecting to data acquisition systems or vibration monitoring equipment.
Easy to install:
Installation is usually relatively simple and can be directly attached to the monitored mechanical components.
Interoperability and compatibility:
In some systems, such as Bently Nevada's 3300 XL system, components such as proximity sensors, extension cables, and probes have complete interoperability and do not require matching or calibration of individual components.
Communication function:
Some preamplifier sensor systems also provide digital communication capabilities for connecting factory process control and automation equipment, as well as online status monitoring software.
In summary, the 330108-91-05 Proximitor Sensor is a high-performance and highly reliable sensor that provides an effective solution for monitoring rotating equipment in the field of industrial automation through its unique measurement principles and technical characteristics. It is an indispensable part of the industrial automation field.
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