Model 787-500 Side-Exit, Low-Frequency Accelerometer

Wilcoxon’s side-exit, high-sensitivity broadband accelerometer offers an interior sensing element capable of producing 500 mV/g. This results in clear signals from low-speed, low-level vibration amplitudes up to its full scale capability of 10 g. The low-end frequency response of the 787-500 makes it ideal for slow-speed applications such as wind turbine generators and cooling towers. A high top-end frequency response offers clear signals for early bearing fault detection, gearbox wear, and other high-speed applications. The 787-500 is supplied with a 2 pin MIL-5015 connector. 

Low-frequency measurements for condition monitoring can present some of the biggest challenges for vibration detection. Applications typically include slow-speed agitators, wind turbines, cooling towers, semiconductor lithography, and seismic monitoring. Low-frequency measurements and low levels of acceleration are closely related, making the electronic circuitry critical to obtaining a good measurement. In order to have adequate voltage levels with high signal-to-noise ratio at the acquisition equipment, low-frequency accelerometers must have sensing elements with higher output than general-purpose sensors. The low-end frequency cutoff of the amplifier is designed to offer clear signals down to < 0.1 Hz.