Machine Tool Metrology
SEA Tests Menu
Overview Rotating Sensitive Radial Fixed Sensitive Radial Tilt AxialFFT
Target Reversal Shift vs. RPM Thermal Stability Temp. Variation Error Oscilloscope Probe MeterSpindle Error Analyzer Tests Performed:
FFT
The FFT analysis test acquires sampled amplitude data from a single probe in the time domain and converts the data into the frequency domain. A graph of amplitude vs. frequency is produced. The graph is updated once per second, showing the FFT results on the most recent data set. FFT data is used in identifying bearing frequency, adjacent machinery frequencies and the like.
Can be used with live measurement data for a rotating spindle, or can capture events such as a "ping" test when the machine is struck with a plastic hammer. Graph includes these features:
- Display of cursor selected FFT value
- View manually selected portion of horizontal (frequency) scale
- View manually selected portion of vertical (displacement) scale
- Ping: View live data and trigger level before freezing
Data Collected |
Calculated Values |
| Any Axis (One Probe) | Primary Frequencies Bearing Frequencies Orders RPM |