The HP 3560A Portable Dynamic Signal Analyzer is a portable FFT-based instrument capable of measuring time domain and the frequency spectrum signals of both steady state and quickly changing signal sources. With two input channels, the HP 3560A provides a variety of frequency response measurements with a frequency range from 31.25 mHz to 40 kHz. The analyzer’s battery operation, light weight (7 kg), and protected enclosure allow you to take measurements in harsh environments normally encountered in portable applications. The HP 3560A enclosure is dust and water resistant. The HP 3560A also serves as a powerful analysis tool. The ICP input mode directly powers accelerometers, so external signal conditioning hardware is not required. Octave measurements, spectral map displays, and marker functions complete fill out the analyzer’s measurement capability. Analysis features provide the power needed to isolate mechanical noise and vibration signal sources. Octave measurements let you use standard acoustic techniques in characterizing signals. The octave measurements comply with ANSI SI.11 standard frequency bands and filter shapes. Spectral map displays allow you to view your signal and how it changes as a function of time. The spectral map display combined with the external sampling capability of the HP 3560A make it easy to determine which vibration signals are related to the operating speed of the machine and which are fixed frequency signals due to other vibration modes such as structural resonances or oil whirl.