Measurement Testing

Mjr · Site Admin Joined: 13 Jul 2005 Posts: 294

iotech has created a table comparing their various vibration-measurement products.

Among the features compared are:

Accelerometer Channel Capacity (e.g. 8 to 56)
Incremental Channel Expansion
Accelerometer Type (piezoelectric)
ICP(r) Current Source (e.g. 4 mA)
Gain Selections (Software programmable)
Programmable Input Ranges (25 mV to 25V)
Anti-Alias Filter (8 pole)
Filter Type (Butterworth)
Programmable Corner Frequency
Maximum Aggregate Speed (500 kHz, 200 kHz)
Tachometer Inputs
Additional Transducer Support

The standout product from iotech is ZoneBook -- A Portable Vibration Analysis and Monitoring System.

It features:

* 8 dynamic input channels, expandable up to 56 channels
* 4 tachometer channels for rotational measurements
* High-speed Ethernet connection to the PC for continuous recording
* Five eZ-Series software packages address a wide variety of vibration monitoring and analysis applications
* TEDS support

ZoneBook may be used in applications such as:

Steam Turbine Rotor Testing: to troubleshoot large turbine and compressor problems that originate from unbalanced rotors and bearing problems.

Gearbox Testing: monitors the vibration profile of giant gearboxes for mixers used in chemical processing plants to prevent costly failures and avoid downtime.

Turbine Generator Vibration Testing: including Finite Element Models of MW generators are fine tuned with vibration tests in the lab.

Remote Turbine Vibration Monitoring: used to capture generator and exciter vibration signals on a gas-turbine-powered machine.

Hydroelectric Generator Maintenance: detect vibrations in worn or unstable turbine shaft bearings long before they are serious enough to cause catastrophic failures.

iotech also produces several software packages that ZoneBook (or other vibration-analysis hardware) may be used with:

- eZ-Analyst – Real-Time Vibration and Acoustic Analysis Software
- eZ-Balance – Machine Balancing Software
- eZ-NDT – Resonant Inspection Software
- eZ-Rotate & eZ-RotatePlus – Rotating Machinery Vibration Analysis Software
- eZ-TOMAS – Machine Vibration Monitoring Software