Patent US3867036A successfully refreshed from Google Patents.
US3867036A
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Limit display circuit for radiation source analysis
Assignee: United States Department of the Army
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Filing: 1974-04-30
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Granted: 1975-02-18
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Expires: 1994-04-30
Abstract
Abstract A limit display circuit is disclosed having intensity and positional encoding sensors disposed for sampling radiant energy across the path of a light beam. The limit display circuit allows continuous radiant intensity level measurements of optical energy across the surface of a beam and simultaneously provides a precise limit function output from selected programmable points across the beam surface during traversal of optical sensors across the surface. Outputs of the sensors are amplified and coupled to an oscilloscope for display.
Inventors
- 👤 Grant R Detwiler
- 👤 Ronald E Chastain
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 21:57
CPC Classifications
G; G01; G01J; G01J1/00; G01J1/42; G01J1/4257
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
110 words
A limit display circuit for comparing optical radiated energy with a precise limit function, comprising: a radiation source, an apertured plate having respective apertures selectively disposed along a straight line, detector means disposed for controlled movement adjacent said plate and between said source and said plate, said detector means having a first sensor responsive to radiant energy from said source and a second sensor responsive to radiant energy impinging on the opposite surface of said plate when precisely positioned adjacent respective apertures therein for providing first and second electrical output signals, and an oscilloscope coupled to said first and second sensors and responsive thereto for simultaneously indicating signals coupled therefrom.
Claim 2
Dependent Claim
110 words
A limit display circuit for comparing optical radiated energy with a precise limit function, comprising: a radiation source, an apertured plate having respective apertures selectively disposed along a straight line, detector means disposed for controlled movement adjacent said plate and between said source and said plate, said detector means having a first sensor responsive to radiant energy from said source and a second sensor responsive to radiant energy impinging on the opposite surface of said plate when precisely positioned adjacent respective apertures therein for providing first and second electrical output signals, and an oscilloscope coupled to said first and second sensors and responsive thereto for simultaneously indicating signals coupled therefrom.
Claim 3
Dependent Claim
99 words
A limit display circuit as set forth in claim 1 and further comprising: a counter circuit having an input and an output, a clock pulse generator having an input and having an output coupled to said counter input, a preamplifier coupled between said second sensor and said pulse generator input, a switching circuit coupled between said counter output and a first input of said oscilloscope for sequentially coupling selected step voltages thereto in response to optical energy sequentially impinging on said second sensor, and a scaling power supply coupled to said switching circuit for providing plural selective voltages thereto.
Claim 4
Dependent Claim
79 words
A limit display circuit as set forth in claim 2 and further comprising a preamplifier coupled between said first sensor and said oscilloscope for providing an amplified output to the oscilloscope, and control means connected to said detector for directing detector sweeps across the radiant light beam, said control means including a control motor for driving said detector and first and second limit switches for terminating and reversing traversal of said detector at preselected positions along the detectors path.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1978-02-17 | 1978-08-19 | 1979-02-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-02-17 | 1982-08-19 | 1983-02-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-02-17 | 1986-08-19 | 1987-02-18 | $7700.00 | Window Closed / Lapsed |