GE vb8 - Page 6

Section 1 — Introduction
iii
Take Orbit Plot Measurement on Route ............................................................ 88
MODAL IMPACT TESTING........................................................................................................ 89
1 — Plan Impact Test Routine ................................................................................ 90
2 — Setup ......................................................................................................................... 90
3 — Perform Trial Impact ......................................................................................... 93
Disable Warning Messages .................................................................................... 95
4 — Perform Actual Modal Impact Test ............................................................ 95
Specify Locations and Directions for Saved Impacts..................................... 97
5 — Review Data .......................................................................................................... 98
KEYPAD ENTRY ......................................................................................................................... 99
ORDER TRACKING................................................................................................................. 101
Take Order Tracked Measurement ................................................................... 102
AVERAGE VALUE MEASUREMENTS .................................................................................... 106
TAKE MULTI-CHANNEL SIMULTANEOUS MEASUREMENTS ............................................ 106
Set up Sensors and Channels ............................................................................. 107
Save Multi-channel Measurements ................................................................. 108
SECTION 5 — SET MEASUREMENT OPTIONS ........................................... 110
SET MEASUREMENT UNITS AND SPECTRUM SCALING ................................................... 110
SET MEASUREMENT PARAMETERS ..................................................................................... 112
CREATE YOUR OWN PARAMETER SETS.............................................................................. 114
ASSIGN SENSORS TO CHANNELS ....................................................................................... 115
SPECTRUM PARAMETERS ..................................................................................................... 116
Fmax ................................................................................................................................ 117
Spectral Lines .............................................................................................................. 118
Fmin ................................................................................................................................. 118
Tach Trigger ................................................................................................................. 118
Averaging ...................................................................................................................... 118
Number of Averages ............................................................................................... 119
Averaging Types ....................................................................................................... 119
Average Overlap....................................................................................................... 119
Windowing ................................................................................................................... 120
Choose Window Type ............................................................................................. 120
WAVEFORM PARAMETERS................................................................................................... 120
Equivalent Fmax ........................................................................................................ 121
Number of Samples ................................................................................................. 121
Duration ......................................................................................................................... 121
ADDITIONAL MEASUREMENT PARAMETERS ..................................................................... 121
SECTION 6 — TAKE RECORDINGS ............................................................. 122
WALKTHROUGH — TAKE RECORDINGS............................................................................ 122
TAKE INDIVIDUAL AND MULTIPLE RECORDINGS.............................................................. 123
Individual recording ................................................................................................. 123