Mechanism for proper alignment of sensor probes with fluid sampl

Details Mechanism for proper alignment of sensor probes with fluid sampl Mechanism for proper alignment of sensor probes with fluid sampl

1984-12-20

1987-02-03

Levy, Stewart J.

Measuring and testing

Probe or probe mounting

128767, 73 32A, 73 1R, G01D 304, G01D 2100, G01N 924

Patent

active

046401288

ABSTRACT:
Apparatus for correctly aligning a pair of sensor probes relative to a sample chamber location in a biological fluid sensor apparatus for sensing fluid in a sample chamber. The sensor probes are carried at the end of a pair of arms mounted for pivotal movement toward one another and the sample chamber location. The distance between these sensor probes when sensing with different sample chamber assemblies of possibly different dimensions established by a blocking member which blocks the arms from movement toward one another beyond a preselected limit. The sensor probe assembly includes a transducer assembly with a transducer housing having a tip and a transducer mounted in a sensing position at the tip together with a guide assembly having a guide housing and structure for mounting the transducer assembly protectively therewithin for relative movement between an inoperative position and an operative position. In the inoperative position, the tip is protectably recessed within the probe guide, and in an operative position, the probe tip protrudes from the guide for sensing engagement with the sensor wall. The sample chamber assembly is provided with a female guide receptical which has a first portion for mating receipt of the guide assembly to guide it into a correct position for receipt of the protruding probe tip by an access opening of the female guide receptical which is located opposite a sensor wall of the chamber.

REFERENCES:
patent: 3371524 (1968-03-01), Wloszek
patent: 4314484 (1982-02-01), Bowman
patent: 4327586 (1982-05-01), Goddard
patent: 4418565 (1983-12-01), St. John
patent: 4432231 (1984-02-01), Napp et al.

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