Patent ID: 7017416
Filing Date: 2006-03-28
Classification: A61B,G01L

Abstract:
1. A disposable sensor system, comprising: a pressure diaphragm connected to at least one reusable Surface Acoustic Wave (SAW) probe head associated with an antenna for wirelessly receiving or transmitting signals, which excite said at least one reusable SAW probe head only when said at least one reusable SAW head is in contact with said pressure diaphragm; interrogation electronics associated with said at least one reusable SAW probe head, wherein a signal from said at least one reusable SAW probe head can be wirelessly transmitted to said interrogation electronics for exciting said at least one reusable SAW probe head for pressure sensing applications thereof; and an iron ring that surrounds said at least one reusable SAW probe head, wherein said iron ring initiates a switch via a magnetic force when said pressure diaphragm and said at least one reusable SAW probe head contact one another so that said switch connects said at least one reusable SAW probe head to said antenna and thereby excite said at least one reusable SAW probe head via said interrogation electronics.