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公开(公告)号：US20210005410A1
公开(公告)日：2021-01-07
申请号：US16909451
申请日：2020-06-23
Applicant: Binh Thanh Nguyen , Joshua David Freeman , Matt David Ruth , Stephan Wayne Finley
Inventor： Binh Thanh Nguyen , Joshua David Freeman , Matt David Ruth , Stephan Wayne Finley
Abstract: In a method and apparatus, an electrical load is disposed across an electric power source. First and second electrical components are disposed between first and second terminals, respectively, and the load and power source. An open circuit is defined between the first and second terminals in absence of a test meter. The first electrical component is configured so that the first component passes at most a low level electric current to the first terminal upon a short circuit condition. The second electrical component is configured so that the second component passes at most a low level electric current to the second terminal upon a short circuit condition.
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公开(公告)号：US20210003635A1
公开(公告)日：2021-01-07
申请号：US16909432
申请日：2020-06-23
Applicant: Binh Thanh Nguyen , Joshua David Freeman , Matt David Ruth , Stephan Wayne Finley
Inventor： Binh Thanh Nguyen , Joshua David Freeman , Matt David Ruth , Stephan Wayne Finley
IPC: G01R31/327 , G01R31/52
Abstract: In a method and apparatus, an electrical load is disposed across an electric power source. First and second electrical components are disposed between first and second terminals, respectively, and the load and power source. The first electrical component is configured so that the first component passes at most a low level electric current to the first terminal upon a short circuit condition. The second electrical component is configured so that the second component passes at most a low level electric current to the second terminal upon a short circuit condition.
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公开(公告)号：US10295404B2
公开(公告)日：2019-05-21
申请号：US15662322
申请日：2017-07-28
Applicant: Joshua David Freeman , Rahul Kumar , Krishnashree Achuthan
Inventor： Joshua David Freeman , Rahul Kumar , Krishnashree Achuthan
Abstract: A solar monitoring system for measuring solar radiation intensity comprising a tracking unit having two-axis movement comprising, an image capturing head mounted with first and second irradiation measuring units, and a controller. The first irradiation measuring unit comprises a direct normal irradiance (DNI) sensor and the second irradiation measuring unit includes a diffuse horizontal irradiance (DHI) sensor and a global horizontal irradiance (GHI) sensor. The controller receives inputs from the sensors or a software program configured to control orientation of the image capturing head so that the DNI sensor is always exposed to the sun, and the shading disc is always directly between the DHI sensor and the sun.
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公开(公告)号：US20180031418A1
公开(公告)日：2018-02-01
申请号：US15662322
申请日：2017-07-28
Applicant: Joshua David FREEMAN , Rahul KUMAR , Krishnashree ACHUTAN
Inventor： Joshua David FREEMAN , Rahul KUMAR , Krishnashree ACHUTAN
CPC classification number: G01J1/42 , G01J1/0219 , G01J1/0437 , G01J1/4228 , G01J2001/4266 , G01J2001/4285 , G01S3/7861 , G01S3/7862
Abstract: A solar monitoring system for measuring solar radiation intensity comprising a tracking unit having two-axis movement comprising, an image capturing head mounted with first and second irradiation measuring units, and a controller. The first irradiation measuring unit comprises a direct normal irradiance (DNI) sensor and the second irradiation measuring unit includes a diffuse horizontal irradiance (DHI) sensor and a global horizontal irradiance (GHI) sensor. The controller receives inputs from the sensors or a software program configured to control orientation of the image capturing head so that the DNI sensor is always exposed to the sun, and the shading disc is always directly between the DHI sensor and the sun.
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