US4015116A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Measurement of solar radiation
Assignee: RHO SIGMA CORP
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Filing: 1975-10-20
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Granted: 1977-03-29
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Expires: 1995-10-20
Abstract
Abstract This solar radiation measuring system records the integral of total solar radiation over a given period of time, and also records the periods during that time when the sun was obscured by clouds or other objects. The measurement of the integral of solar radiation includes all spectral components of the solar spectrum from the ultra-violet through the infrared. The design of the device is such that readout is simple and complex data reduction is unnecessary.
Inventors
- 👤 Raymond J. Bahm
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 04:37
CPC Classifications
G; G01; G01W; G01W1/00; G01W1/12
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
191 words
A solar radiation measuring and recording system comprising: an integrating solar radiometer and a solar recorder, said integrating solar radiometer comprising: a constant voltage source, a photo-resistive element, and a current integrating device connected in series, said photo-resistive element having an electrical resistance inversly proportional to the radiation falling thereupon to produce a detectable change of state therewithin to control the current passing through said current integrating device, and said solar recorder comprising: a light-tight enclosure having a pin hole therein, a medium, sensitive to a portion of the solar spectrum to create a change of state in said medium, located within said enclosure, whereby only direct rays from said portion of the solar spectrum which pass through the pin hole impinge upon said medium, and at least one sight attached to said enclosure, said at least one sight comprising: a circular angular scale having equiangular divisions on a flat surface upon said enclosure, and a conical shaped pedestal in the center of said scale having the axis of the cone normal to said flat surface and the base of said pedestal lying in the same plane and said flat surface.
Claim 2
Dependent Claim
191 words
A solar radiation measuring and recording system comprising: an integrating solar radiometer and a solar recorder, said integrating solar radiometer comprising: a constant voltage source, a photo-resistive element, and a current integrating device connected in series, said photo-resistive element having an electrical resistance inversly proportional to the radiation falling thereupon to produce a detectable change of state therewithin to control the current passing through said current integrating device, and said solar recorder comprising: a light-tight enclosure having a pin hole therein, a medium, sensitive to a portion of the solar spectrum to create a change of state in said medium, located within said enclosure, whereby only direct rays from said portion of the solar spectrum which pass through the pin hole impinge upon said medium, and at least one sight attached to said enclosure, said at least one sight comprising: a circular angular scale having equiangular divisions on a flat surface upon said enclosure, and a conical shaped pedestal in the center of said scale having the axis of the cone normal to said flat surface and the base of said pedestal lying in the same plane and said flat surface.
Claim 3
Dependent Claim
13 words
The apparatus of claim 1 wherein said medium is of a photographic material.
Claim 4
Dependent Claim
24 words
The apparatus of claim 1 further comprising a diffusing filter to alter the path of the radiation passing therethrough fall upon said photo-resistive element.
Claim 5
Dependent Claim
115 words
An integrating solar radiometer for measuring solar radiation for up to long periods of time comprising: a container, a flat diffusing filter to alter the path of the radiation incident thereupon forming a cap upon said container to produce a weatherproofing housing with said container, a spectral filter adjacent said cap within said container to alter the intensity of spectral components of the incident radiation, a battery, a photo-resistive cell and a current integrating element connected in series within said container whereby said altered spectral components are incident upon said photo-resistive cell to control current passing through said series circuit to be integrated by said integrating element for readout after a given period of time.
Claim 6
Dependent Claim
115 words
An integrating solar radiometer for measuring solar radiation for up to long periods of time comprising: a container, a flat diffusing filter to alter the path of the radiation incident thereupon forming a cap upon said container to produce a weatherproofing housing with said container, a spectral filter adjacent said cap within said container to alter the intensity of spectral components of the incident radiation, a battery, a photo-resistive cell and a current integrating element connected in series within said container whereby said altered spectral components are incident upon said photo-resistive cell to control current passing through said series circuit to be integrated by said integrating element for readout after a given period of time.
Claim 7
Independent Claim
110 words
The method of measuring the intensity of the sun and the presence and absence of solar radiation over a predetermined period of time comprising: providing a portable solar integrating radiometer, providing a portable solar recorder for use in conjunction with said radiometer, aligning said radiometer and said recorder to permit the radiation from the sun to impinge thereupon, providing a radiation sensitive medium within said recorder behind a pin hole therein, permitting a portion of the sun's radiation to pass through said pin hole to sweep across said sensitive medium to produce a image thereupon, and measuring the integrated radiation detected by said radiometer after a predetermined period of time.
Claim 8
Independent Claim
110 words
The method of measuring the intensity of the sun and the presence and absence of solar radiation over a predetermined period of time comprising: providing a portable solar integrating radiometer, providing a portable solar recorder for use in conjunction with said radiometer, aligning said radiometer and said recorder to permit the radiation from the sun to impinge thereupon, providing a radiation sensitive medium within said recorder behind a pin hole therein, permitting a portion of the sun's radiation to pass through said pin hole to sweep across said sensitive medium to produce a image thereupon, and measuring the integrated radiation detected by said radiometer after a predetermined period of time.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1980-03-28 | 1980-09-27 | 1981-03-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1984-03-28 | 1984-09-27 | 1985-03-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1988-03-28 | 1988-09-27 | 1989-03-29 | $7700.00 | Window Closed / Lapsed |