Temperature Sensor For Removable Fitting In The Wall Of A Borehole Instrument Without Disassembly Of The Borehole Instrument

摘要

A sensor assembly that responds to temperature of fluids within an annulus formed by an outer surface of a borehole instrument 60 and the wall of a borehole. The sensor assembly is removably installed preferably in the wall of the borehole instrument. Installation and removal are from outside of the borehole instrument thus eliminating the need to disassemble the borehole instrument. The sensor assembly comprises a temperature transducer 14 that is hermetically sealed within a housing designed to obtain maximum thermal exposure of the transducer. Power to the temperature transducer is supplied from a separate electronics package 78 in the borehole instrument through a rotary connector 36 within the sensor housing. The rotary connector is electrically connected to the temperature transducer via springs 28 and 26. The contacts 30 and 34 of the rotary connector are aligned with tool contacts 70 and 72 in the receptacle in the wall of the borehole instrument by alignment tab 54.