|
Item
|
TM291
|
|
Probe type
|
Single crystal probe / double crystal probe
|
|
Measuring range (45# steel)
|
20um – 1800mm
|
|
Measurement frequency
|
4Hz、8Hz、16Hz
|
|
Resolution
|
0.1mm、0.01mm、0.001mm（0.01inch、0.001inch、0.0001inch）
|
|
Pulse generator
|
Negative square wave emission is adopted, and the pulse width and voltage are automatically matched with the probe.
|
|
Sound velocity range
|
400-19999m/s
|
|
Calibration block
|
4mm（steel）
|
|
Automatic shutdown
|
One can choose 5 minutes, 10 minutes, 20 minutes and manual shutdown.
|
|
Probe calibration
|
One point calibration, multi-point calibration,manual calibration
|
|
gain
|
Automatic gain control, Manual gain control
|
|
Gain range
|
0~80dB
|
|
Detection mode
|
Radio frequency (RF), positive half wave (POS), negative half wave (NEG), full wave (FULL)
|