Remote locating of a structure and remote measurement of conditions therein
First Claim
Patent Images
1. An article comprising an enclosure and a sensor in communication therewith, the sensor being responsive to a condition within the enclosure, the sensor response being capable of being detected remotely so that the location and the condition of the enclosure can be determined without access to the enclosure, wherein the sensor comprises:
- (a) a tuned electrical circuit capable of exhibiting a first resonant frequency;
(b) means for modifying the electrical circuit in response to a change in the condition so that it exhibits a second resonant frequency; and
(c) a transducer which includes a field effect transistor for performing the switching of the modifying means into or out of the circuit in response to a change in the condition within the enclosure.
1 Assignment
0 Petitions
Accused Products
Abstract
Remote sensing of conditions in telecommunications splice case, such as pressure or humidity. The splice case may contain a transducer which alters a resonant frequency of a circuit associated with the splice case.
-
Citations
29 Claims
-
1. An article comprising an enclosure and a sensor in communication therewith, the sensor being responsive to a condition within the enclosure, the sensor response being capable of being detected remotely so that the location and the condition of the enclosure can be determined without access to the enclosure, wherein the sensor comprises:
-
(a) a tuned electrical circuit capable of exhibiting a first resonant frequency; (b) means for modifying the electrical circuit in response to a change in the condition so that it exhibits a second resonant frequency; and (c) a transducer which includes a field effect transistor for performing the switching of the modifying means into or out of the circuit in response to a change in the condition within the enclosure. - View Dependent Claims (2)
-
-
3. An article comprising a splice case and a sensor in communication therewith, the sensor being responsive to a condition within the splice case, the sensor response being capable of being detected remotely so that the location and the condition of the splice case can be detected without access to the splice case, wherein the sensor comprises:
-
(a) a tuned electrical circuit being capable of exhibiting a first resonant frequency; (b) means for modifying the circuit in response to a change in the resonant condition so that it exhibits a second resonant frequency; and (c) a transducer for switching the modifying means into or out of the circuit in response to a change in the condition within the splice case, wherein the splice case encloses a splice between two cables.
-
-
4. An article comprising a splice case and a sensor in communication therewith, the sensor being responsive to a condition within the splice case, the sensor response being capable of being detected remotely so that the location and condition of the splice case can be determined without access to the splice case, wherein the sensor comprises:
-
(a) a tuned electrical circuit capable of exhibiting a first resonant frequency; (b) means for modifying the circuit in response to a change in the condition so that it exhibits a second resonant frequency; and (c) a transducer, which includes a field effect transistor, for performing the switching of the modifying means into or out of the circuit in response to a change in the condition within the splice case. - View Dependent Claims (5)
-
- 6. An article comprising a splice case for enclosing a splice between two cables, and a sensor in communication the splice case, the sensor being responsive to a condition within the splice case, the sensor response being capable of being detected remotely such that the location and condition of the splice case can be determined without requiring access to the splice case, wherein the sensor comprises an electrical circuit capable of responding to electromagnetic radiation, and means capable of causing an output signal of the circuit to be modified in response to a change in the condition, and wherein the splice case includes a metal moisture vapor barrier provided with means to allow passage of electromagnetic radiation therethrough.
-
29. A method of investigating remotely a condition within a splice case, which comprises:
-
(a) providing a sensor in communication with the splice case for sensing a condition within the splice case, the sensor response being capable of being detected remotely such that the location and condition of the splice case can be determined without requiring access to the splice case, wherein the sensor comprises; (i) a tuned electrical circuit capable of exhibiting a first resonant frequency, (ii) means for modifying the circuit in response to a change in the condition so that it exhibits a second resonant frequency, and (iii) a transducer for switching the modifying means into or out of the circuit; (b) exposing the sensor to electromagnetic radiation from a remote source, the radiation being applied sequentially with a frequency corresponding to the said first and second resonant frequencies respectively; and (c) monitoring for emission of radiation by the sensor in response to the exposure thereof to radiation of a frequency corresponding either to the first resonant frequency or to the second resonant frequency.
-
Specification