To measure an order spectrum
This task shows you how to use calibrated transducers to measure order spectra.
Order-mode measurements are possible only if your analyzer is equipped with
Option 1D0.
1 Initialize the analyzer.
Press [
Preset
][
DO PRESET
].
Set up your tachometer parameters, as described in “To characterize a tachometer
signal, ” but ignore that task’s instruction to preset the analyzer.
Calibrate your transducers, as described in “To calibrate a transducer,” but ignore that
task’s instruction to preset the analyzer.
Press [
Inst Mode
][
ORDER ANALYSIS
].
Press [
CHANNELS 1 2
] (or [
CHANNELS 1 2 4
]) to highlight the number of channels you
want activated.
Press [
Active Trace
], then press [
A
] if you are measuring with one transducer, [
AB
]if
you are measuring with two, or [
ABCD
] if you are measuring with three or four.
Press [
Meas Data
][
ALL CHANNELS
][
PWR SPEC CHANNEL *
].
2 Secure each calibrated transducer to the device-under-test (DUT).
Option AY6
Agilent 35670A
Measuring Rotating Machinery Operator's Guide
1-10