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　　Other names for 144-202-000-125:

　　Vibration meter 144-202-000-125

　　144-202-000-125 high-temperature vibration sensor

　　Piezoelectric controller 144-202-000-125

　　VIBRO-METER: Founded in Fribourg, Switzerland (1952), specializing in the research and development of vibration monitoring systems for rotating machinery. Since the 1960s, they have provided high-reliability vibration monitoring solutions for aero-engines. Their products are widely used in large civil aircraft such as Boeing, Airbus, and McDonnell Douglas (e.g., A330/340, MD-11, Boeing 737 series).

　　Core Technology: Employing piezoelectric accelerometers for vibration measurement, coupled with military-grade connectors, low-noise cables, and tracking filters, the system's MTBF (Mean Time Between Failures) is increased from hundreds of hours to thousands of hours, meeting the stringent requirements of aerospace, power, and petrochemical industries.

　　The 144-202-000-125 piezoelectric accelerometer belongs to the vibration monitoring product line of VIBRO-METER AG (founded in 1952, located in Fribourg, Switzerland). This company is a professional manufacturer of rotating machinery protection and condition monitoring systems, possessing deep technical expertise, particularly in aero-engines, power, and petrochemical fields. Its products are renowned for their high reliability (e.g., MTBF reaching thousands of hours) and are widely used in Boeing, Airbus, and other commercial aircraft, as well as industrial rotating equipment.

　　Technical Characteristics and Parameters

　　Working Principle: Based on the piezoelectric effect, mechanical vibration is converted into an electrical charge signal through a quartz/PZT piezoelectric crystal. After processing by a preamplifier, the acceleration, velocity, and displacement values are output.

　　Wide bandwidth and high sensitivity: Frequency response range covers 10Hz-15kHz, acceleration measurement range 0.1-199.9m/s², velocity range 0.1-1999.9mm/s (RMS), displacement range 0.001-1.999mm (peak-to-peak), accuracy conforms to ISO 2954 and GB/T 13824 standards (±5% ± 2 digits).

　　Anti-interference design: Employs a ring-type or planar-type shear structure to reduce lateral sensitivity (<5%) and minimize the influence of mounting surface strain; weak pyroelectric effect, suitable for high-temperature environments (such as turbine cylinder monitoring).

　　Environmental adaptability: Certified to military standards, resistant to high temperature, high pressure, high vibration, and corrosive gases, suitable for extreme environments such as aerospace rocket engines and offshore platform units.

　　System Architecture and Components

　　The VIBRO-METER vibration monitoring system consists of sensors, signal conditioners, monitoring modules, power supplies, and relay modules, supporting data acquisition, analysis, alarm functions, and automated management.

　　Sensors: Includes piezoelectric accelerometers (such as CE620, PV660), vibration sensors (VS-068/VS-069), and shaft vibration sensors (IN081), covering multi-parameter measurements of acceleration, velocity, and displacement.

　　Signal Conditioners: Such as the IQS series preamplifiers, providing signal amplification, filtering, and linearization processing, supporting AC/DC coupling mode switching.

　　Monitoring Modules: Represented by the VM600 TSI (Turbine Supervisory Instrumentation) system, integrating multi-channel data acquisition, real-time analysis, alarm threshold setting, and fault diagnosis functions.

　　Power Supply and Relays: The RPS6U power supply module provides stable power, and the RLC16 relay module supports alarm signal output and equipment linkage control.

　　Application Scenarios

　　Industrial Sector: Vibration monitoring and fault diagnosis of rotating machinery in power (steam turbines, generators), petrochemical (compressors, pumps), and metallurgical (rolling mills) industries.

　　Aerospace: Vibration testing and health management of aircraft engines and satellite propulsion systems.

　　Scientific Research and Testing: Dynamic material property analysis, structural modal testing, acoustic property research, etc.

　　Energy and Industry: Vibration monitoring and protection of power plant steam turbine units (VM600 TSI system), gas turbines, fans, and pumps; condition monitoring of rotating machinery in petrochemical refining units, steel mill rolling mills, and paper machines.

　　Special Environments: Vibration testing of aerospace rocket engines, monitoring of offshore drilling platform units, vibration monitoring of main pumps in nuclear power plants, etc.

　　System Integration and Supporting Facilities

　　Monitoring Systems: Such as the VM600 system, integrating condition detection, machine protection, data acquisition (e.g., the XMV16 module supports 16-channel simultaneous acquisition), FFT analysis (6400 line resolution), and alarm logic functions.

　　Supporting components include a preamplifier (e.g., IQS450), an eddy current sensor (e.g., IN081), a signal conditioning module, a power supply module (RPS6U), and a relay module (RLC16), supporting communication protocols such as Modbus and OPC.

　　Software tools: VibroSight software provides real-time data visualization, trend analysis, event logging, and historical data backtracking functions.