Apparatus for wireless chemical sensing
First Claim
Patent Images
1. A chemical sensor system, comprising:
- an interrogation unit operable to transmit an interrogation signal and receive responses;
an environmentally-sealed housing;
a responder unit disposed within said environmentally-sealed housing, said responder unit being powered from said interrogation signals, said responder unit operable to receive said interrogation signals and transmit responses to said interrogation signals;
a chemical sensor disposed within said housing and operable to generate an output based on predetermined physical parameters;
at least one electrode extending outwardly from said housing and in electrical communication with said chemical sensor; and
a measurement circuit disposed within said housing and coupled to said chemical sensor, said measurement circuit operable to measure the output of said chemical sensor and provide measurement data to be communicated to said interrogation unit in said responses.
1 Assignment
0 Petitions
Accused Products
Abstract
A method and apparatus for wireless sensing of chemical parameters is provided in which an interrogation unit (14) transmits interrogation signals. A chemical sensor (12) generates an output based on predetermined chemical parameters. The chemical sensor output is measured by a measurement circuit (10). A responder unit (16), which is powered by the interrogation signals, transmits responses to interrogation signals based on the measured data.
169 Citations
14 Claims
-
1. A chemical sensor system, comprising:
-
an interrogation unit operable to transmit an interrogation signal and receive responses; an environmentally-sealed housing; a responder unit disposed within said environmentally-sealed housing, said responder unit being powered from said interrogation signals, said responder unit operable to receive said interrogation signals and transmit responses to said interrogation signals; a chemical sensor disposed within said housing and operable to generate an output based on predetermined physical parameters; at least one electrode extending outwardly from said housing and in electrical communication with said chemical sensor; and a measurement circuit disposed within said housing and coupled to said chemical sensor, said measurement circuit operable to measure the output of said chemical sensor and provide measurement data to be communicated to said interrogation unit in said responses. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
-
-
10. A chemical sensor system, comprising:
-
an interrogation unit operable to transmit an interrogation signal and receive responses; a plurality of environmentally-sealed housings; a plurality of chemical sensors each disposed within one of said housings and operable to generate an output based on predetermined physical parameters; at least one electrode extending outwardly from each of said housings and in electrical communication with one of said chemical sensors; a plurality of measurement circuits, one each of said measurement circuits associated with one each of said chemical sensors and disposed in one of said housings, said measurement circuits operable to measure the outputs of said chemical sensors and provide measurement data; and a plurality of responder units, one each of said responder units associated with one each of said chemical sensors and one each of said measurement circuits and disposed in one of said housings, said responder units being powered from said interrogation signals, said responder units operable to receive said interrogation signals and transmit responses to said interrogation signals that include measurement data. - View Dependent Claims (11, 12, 13, 14)
-
Specification