Acceleration Pickup Frequently Asked Questions

Question number FAQ-1386

The calibration method using the DS-0221 general-purpose FFT software when integrating signals with the PS-1300 is.

As stated on page 20 of the PS-1300 manual, calculate the displacement value per 5V.

The sensitivity of the used sensor is [0.9mV/（m/s ²] when the gain setting of the PS-1300 is [10];

■Maximum measurable acceleration, maximum speed, maximum displacement
(When using a sensor with a sensitivity of 1 mV/(m/s ²))

In the case of acceleration (ACC m/s ²)

Gain	1	2	5	10	20	50	100
Maximum acceleration (m/s ²)	5000	2500	1000	500	250	100	50

In the case of speed (VEL mm/s)

Gain	1	2	5	10	20	50	100
Maximum speed (mm/s)	5000	2500	1000	500	250	100	50

In the case of displacement (DISP mm)

Gain	0.1	0.2	0.5	1	2	5	10
Maximum Displacement (mm)	500	250	100	50	25	10	5

For sensors other than those with a sensitivity of 1 mV/(m/s ²), please confirm using the following formula before use.

From the above expression;

V/EU setting value = Sensor sensitivity × 5 ÷ Maximum displacement value determined from gain settings in the table above.

(Sensor sensitivity is a value in mV/(m/s ²))

In the above example, the actual setting is;

In the DS-0221 input menu, set the unit name to "mm" and the physical quantity to "0.9V/EU" in the "Unit calibration" input menu of the DS-0221. The same applies to speed, where the unit name is mm/s.

Furthermore, this calibration method is the same for other FFT analyzers, such as the CF-7200.

Last updated: 2007-08-20