February 2012 26 – 417
TS with signal transmission via cable (e.g. TS 220)
The machine operator inserts the touch probes into the spindle by hand.
They serve to align workpieces, set datums and calibrate workpieces.
Power supply and signal transmission via the cable.
Various styli can be inserted into the touch probes. The styli feature a rated break point.
TT tool touch probe TT with infrared transmission of the trigger signal (e.g. TT 449)
This touch probe is used to measure tools (length, radius, individual teeth).
Tools can be examined for breakage.
Tool wear can be determined.
The infrared transmission is established between the TT tool touch probe and the SE transmitter/
receiver unit.
The infrared transmission is tolerant to noise and even works by reflection.
The probe is normally battery-operated.
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