Invention Grant
- Patent Title: Surface acoustic wave sensor sensing circuits
- Patent Title (中): 表面声波传感器感应电路
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Application No.: US80366Application Date: 1979-09-28
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Publication No.: US4295102APublication Date: 1981-10-13
- Inventor: Gary D. Schmidt , Jerry L. Norris , Donald F. Weirauch
- Applicant: Gary D. Schmidt , Jerry L. Norris , Donald F. Weirauch
- Applicant Address: TX Dallas
- Assignee: Texas Instruments Incorporated
- Current Assignee: Texas Instruments Incorporated
- Current Assignee Address: TX Dallas
- Main IPC: G01L9/00
- IPC: G01L9/00 ; G10K11/36 ; H03B5/32 ; H03D7/00 ; G01B7/16 ; H03B5/18 ; H03H9/25
Abstract:
A surface acoustic wave sensor system in which a predetermined level of coupling between two surface acoustic wave arrays is intentionally provided in order to couple radio frequency energy from one into the other and thereby, in cooperative effect with attendant oscillator circuits and a filter, results in the development of a difference frequency which is a function of the sensed condition.
Public/Granted literature
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