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- Sale of the UK operations of Strainstall to the BES Group
- James Fisher Strainstall provides structural health monitoring system for the world’s tallest railway bridge
- James Fisher Strainstall secures Palace of Westminster instrumentation and monitoring contract
- James Fisher combines its asset monitoring capabilities under the new brand of James Fisher Strainstall
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Model JF-ACC
A compact wired tri-axial accelerometer (4-20mA)
- Rugged construction ‐ IP67 gel filled metal flanged box prevents in‐situ damage or degradation, prolonging monitoring system life
- Test function ‐ Electromechanically generates a test force to ensure sensor is working correctly and that installation wiring is operational
- Easy mounting - Enclosure incorporates mounting holes for easy fixing to structures, to reduce installation time
The JF‐ACC sensor is a low noise, low drift, 3‐Axis MEMS accelerometer, designed for use in both indoor and harsh outdoor environments. Ideal for systems integrators, universities and organisations with their own maintenance or monitoring teams.
It is rugged, compact and low power, making it suitable for many applications, including structural health monitoring and condition monitoring. Typical applications for the technology include:
- Bridge testing to understand vibration response
- Longer term structural health monitoring of bridges and buildings
- Offshore wind monitoring – understand tower movement and condition
- Detection of seismic tremors
The sensor includes a test function, which generates an internal test force to check installation and correct operation.
Specifications
Acceleration range | ±2g |
Output | 4-20mA X, Y and Z-axis signal |
Supply voltage | 12-24VDC |
Sensitivity | 4.0 mA/g |
Bandwidth: Internal low-pass filter frequency | 0-1500Hz |
Noise density | 20 µg/vHz X, Y and Z-axis |
Self test function | Electromechanical |
IP rating | IP68 |
Operating temperature | -40°C to +100°C |
Dimensions |
Length: 76mm Width: 50mm Height: 30mm |
Weight | Approx 75g |