Radiant energy – Photocells; circuits and apparatus – Optical or pre-photocell system
Patent
1989-03-03
1990-10-16
Nelms, David C.
Radiant energy
Photocells; circuits and apparatus
Optical or pre-photocell system
250551, 455612, H01J 516
Patent
active
049637290
ABSTRACT:
An optically powered sensor system with improved signal conditioning includes a plurality of sensors connected to a system optical bus that communicates with a system controller. Optical energy is transmitted along the bus for distribution to all sensor in the system with return pulses from the various sensors transmitted on the bus to the system controller. Each sensor includes a photodiode array for converting optical energy transmitted system-wide by the controller into electrical energy for storage in a storage capacitor associated with each sensor. A capacitance probe transducer and a fixed-value reference capacitor are connected to a resettable integrating pulse encoder that produces a series of short-duration pulses having a pulse spacing that is dependent upon the fixed value of the reference and the parameter-affected value of the transducer. The pulses are used to drive an optical source for transmitting optical pulses from the sensor to the system controller.
REFERENCES:
patent: 4820916 (1989-04-01), Patriquin
patent: 4857727 (1989-08-01), Lenz et al.
Andresen Richard P.
Spillman William B.
Lovercheck Dale R.
Nelms David C.
Shani Khaled
Simmonds Precision Products Inc.
Walter Wallace G.
LandOfFree
Optically powered sensor system with improved signal conditionin does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Optically powered sensor system with improved signal conditionin, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Optically powered sensor system with improved signal conditionin will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-851075