Torsional Vibration Measurement Sensor Transducer
The Analog Torsional Vibration Sensor (ATVS) was developed to address the industry’s need for an analog sensor that provides reliable data to identify torsional vibration without the installation of encoders, slip rings, and telemetry.
Features
- Contactless (No Encoders, Slip Rings, or Telemetry)
- No Modification to Shaft/Rotor
- Analog Voltage Output: 0.1 [Volt/(m/s)]
- Simple Data Acquisition System
- Can be Installed at Any Location Where the Shaft is Exposed
- Not affected by Dust/Dirt/Oil/Water/Grease…
- Frequency Range: 0-300[Hz]
- Resolution: 1E-4[m/s], 0.1[mm/s]
- R-Squared Value of Linear Trend: R2 = 0.9931
- Basic Temperature Range: -40°C to +70°C
- High Temperature Version up to 200°C (ATVS-HT)
- Dedicated Noise-Only Output
- Easy Gap Adjustment During Operation
- Ingress Protection: IP65/67
Applications
- Identifying Torsional Natural Frequencies
- Torsional Load Monitoring
- Rotor Health/Condition Monitoring
- Rotor/Blade Vibration Monitoring
- Rotational Fatigue Monitoring
- Crack Identification During Operation
- Torsional Damper Development
- Pump Vibration Monitoring
*Parameters of noise measurement: 10mil (0.25mm) gap, 1045 carbon steel target, 4in radius.
Industries
- Electric Power Generation (Nuclear, Fossil, Hydro…)
- Marine/Shipping (Drive Shaft Monitoring)
- Oil and Gas
- Automotive
- Aviation/Aerospace
- Research and Development
Watch the ATVS Introduction Video
A short, 2:36 minutes YouTube video describes the advantages of ATVS over existing technologies.
ATVS Installation on the Oil Deflector
Analog Torsional Vibration Sensor installation on the oil deflector of turning gear housing using a simple L bracket.
ATVS On-Site Demonstration
The video shows the signal characteristics of the Analog Torsional Vibration Sensor (ATVS) for different air gap sizes.
ATVS Industrial Version (ATVS-I1)
The simplified and more robust industrial version of the ATVS was developed for permanent installations.
Analog Torsional Vibration Sensor
Installation Schematics
Applications
- Identifying torsional natural frequencies of a retrofitted steam turbine generator to avoid resonance condition at double line frequency (120Hz/100Hz)
- Fine tuning finite element models of rotor systems
- Identifying torsional natural frequencies and mode shapes of rotor systems
- Identifying torsional natural frequency shift due to crack initiation and propagation
- Identifying torsional vibration of a steam turbine generator caused by electric grid load variation
- Vehicle powertrain development
- Cycle counting for fatigue calculation, remaining life estimation
- Measurement of an alternating torsional load caused by tool vibration of a milling machine
- Turbo compressor development
- Torsional damper development
- Marine propulsion system torsional vibration monitoring
- Marine shaft crack initiation and propagation monitoring
- Turbine blade crack identification during operation
- Hydroelectric turbine-generator torsional vibration monitoring
- Shaft coupling development and testing
- Tuning torsional natural frequencies to avoid resonance conditions
- Operational procedure development to avoid damaging torsional vibration
