Patent ID: 6553852
Filing Date: 2003-04-29
Classification: E02D,G01N

Abstract:
A sensor apparatus for obtaining in situ measurements from a subsurface environment comprising:a tubular shaft having an exterior cylindrical wall and defining an interior cavity, the exterior wall further defining an opening; an arm mounted via a pivot which is operatively disposed within the tubular shaft, the arm being movable relative to the shaft between a closed position covering the exterior wall opening and a deployed position where a free end of the arm extends away from the surface of the tubular shaft; a motor disposed within the tubular shaft and in operative engagement with the pivot; a sensor carried by a free end of the arm and in further communication with an interior of the tubular shaft; wherein, when the motor operably engages the pivot, the pivot is engaged and thereby moves the arm from the closed position covering the shaft opening to a deployed position with the free end of the arm and the associated sensor positioned away from the exterior wall of the shaft.