Removable magnetostrictive probe with automatic calibration

摘要

A magnetostrictive sensing instrument comprises a probe including a tube having a near end and a distal end. A magnetostrictive wire is in the tube. An adaptor at the tube near end includes a probe circuit comprising a drive circuit for the magnetostrictive wire, a pickup sensor, a preamplifier and a memory circuit storing calibration parameters for the probe. An instrument housing includes a control circuit. A connector is operatively disposed between the instrument housing and the adaptor and comprises electrical conductors for connecting the control circuit to the probe circuit.

主权项

1. A magnetostrictive sensing instrument comprising:
a probe including an elongate tube having a near end and a distal end, a magnetostrictive wire in the tube, and an adapter at the tube near end including a probe circuit comprising a drive circuit for the magnetostrictive wire, a pickup sensor and a preamplifier circuit; an instrument housing including a control circuit; and a two part connector assembly operatively disposed between the instrument housing and the adapter comprising a probe connector and a transmitter connector for mechanically connecting the probe to the instrument housing, the transmitter connector comprising electrical connectors electrically connected to the control circuit and the probe connector comprising electrical connectors electrically connected to the probe circuit.