model 7290E. The phase shift will be almost 0 degrees at 1 Hz.
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The 7290E is a unique variable capacitance, DC accelerometer designed to measure the low g, low frequency characteristics of flutter phenomena. This device has a frequency response of 0-15 Hz at a range of ±2 gâ€™s and 0-2000 Hz at ±100 gâ€™s at its highest range. E