Table 1.
Parameters of the HVLab thermal aesthesiometer and HVLab vibrotactile perception meter
| Parameter | Condition |
|---|---|
| Thermotactile thresholds | |
| Contact area | Circular, 5.5 cm diameter |
| Contact surface | Smooth and planar |
| Psychophysical method | Method of limits |
| Number of judgements | Six hot or cold |
| Reference temperature | 32.5 °C |
| Rate of change in temperature | 1 °C/s |
| Vibrotactile thresholds | |
| Probe diameter | 6 mm |
| Probe surround gap | 2 mm |
| Contactor surface | Smooth and planar |
| Psychophysical method | von Békésy |
| Number of judgements | At least six peaks and troughs |
| Rate of change in stimulus | 3 dB/s |
| Push force | 2 N |