Fiber optical sensor system, preferably for measuring physical parameters
First Claim
1. A fiber optical sensor system for transmission of information from one location to another, comprising in combination:
- (a) a fiber optical transmission line having a first end and at least one second end for transmitting light therebetween,(b) a first light source for emitting a first light beam into said first end of said transmission line;
(c) at least one first receiver element sensitive to the light of said first light source for receiving light of said first light source from said second end of said transmission line and for generating a first electric output signal in accordance with the light received;
(d) electrical energy storage means connected to said first receiver element for receiving said first electric output signal and for storing energy in accordance therewith;
(e) a second light source for emitting a second light beam into said second end of said transmission line, said second light source being energized from said electrical energy storage means and being controlled in dependence upon information to be transmitted; and
(f) a second receiver element sensitive to the light of said second light source for receiving light of said second light source from said transmission line and for generating a second electric output signal in accordance with the light received and thereby in accordance with the transmitted information.
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Accused Products
Abstract
The system contains a fiber optical transmission line, a first light source for emitting a first light beam into a first end of the transmission line, and at least one first light sensitive element for receiving light from a second end of the transmission line. An energy storage device such as a capacitor is connected to the first light sensitive element for energizing various components. The system further contains a second light source for emitting a second light beam into the second end of the transmission line. This source is controlled in dependence upon information to be transmitted, preferably in dependence of a physical parameter. The system finally contains a second receiver element for receiving light from the first end of the transmission line. This element generates an electric output signal which is in accordance with the transmitted information. The system preferably has a large number of transducer units or measuring elements associated with various second ends of the transmission line for transmitting information of various nature and/or from various locations.
42 Citations
32 Claims
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1. A fiber optical sensor system for transmission of information from one location to another, comprising in combination:
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(a) a fiber optical transmission line having a first end and at least one second end for transmitting light therebetween, (b) a first light source for emitting a first light beam into said first end of said transmission line; (c) at least one first receiver element sensitive to the light of said first light source for receiving light of said first light source from said second end of said transmission line and for generating a first electric output signal in accordance with the light received; (d) electrical energy storage means connected to said first receiver element for receiving said first electric output signal and for storing energy in accordance therewith; (e) a second light source for emitting a second light beam into said second end of said transmission line, said second light source being energized from said electrical energy storage means and being controlled in dependence upon information to be transmitted; and (f) a second receiver element sensitive to the light of said second light source for receiving light of said second light source from said transmission line and for generating a second electric output signal in accordance with the light received and thereby in accordance with the transmitted information. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32)
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Specification