Patent ID: 6543934
Filing Date: 2003-04-08
Classification: G01K

Abstract:
In a probe for temperature measurement during a reaction involving high temperature or high pressure or high incident flow velocity in a reactor (6), which probe comprises a probe body (1) having a forward section which is adapted for insertion into the reactor, the forward-most end of which body is in the shape of a truncated cone (1A) narrowing toward the forward-most end of the forward-most section said probe having a longitudinal cylindrical hole (2) through which passes a sheathed thermocouple (3), said thermocouple having a thermosensitive tip (3A) at the forward-most end of the probe, the improvement wherein, the forward-most end of the probe is provided with an annular gap (10), having a gap length of from 5 to 20 mm the thermosensitive tip of the sheathed (1B, 14B) thermocouple (3) extending beyond the forward-most end of the truncated cone.