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US 5,701,646 AGranted
Method of making a sensor
AssigneeIsco, Inc.
InventorsFrederick Alan Nabity, Paul George Wright, Raymond Hulinsky, Douglas Timothy Carson
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Abstract
A method of making a sensor wherein flexible conduit means is assembled with a fixture having a strain-sensitive film and electrical connections are made to the film whereby variations in fluid pressure in the conduit means can be detected.
Claims13
A method of making a sensor for detecting a liquid in a flexible conduit comprising the steps of:
- providing a flexible conduit means;
- forming a loop of the flexible conduit means said loop having two legs, and positioning said loop in cooperation with a peristaltic pump;
- mounting said legs in a fixture wherein a strain-sensitive film in the fixture is positioned adjacent and in contact with one of said legs to sense pressure within the flexible conduit means;
- and
- providing electrical connections to the strain-sensitive film adapted to sense periodic strains whereby pulses of pressure transmitted through the flexible conduit means may be detected.
2 more elements
Dependencies are inferred from the claim text.