JPS5687882A - Heliograph - Google Patents

Heliograph

Info

Publication number
JPS5687882A
JPS5687882A JP16599579A JP16599579A JPS5687882A JP S5687882 A JPS5687882 A JP S5687882A JP 16599579 A JP16599579 A JP 16599579A JP 16599579 A JP16599579 A JP 16599579A JP S5687882 A JPS5687882 A JP S5687882A
Authority
JP
Japan
Prior art keywords
sunshine
duration
time measuring
module
state
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
JP16599579A
Other languages
Japanese (ja)
Inventor
Tsutomu Sugimoto
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Yanmar Co Ltd
Original Assignee
Yanmar Agricultural Equipment Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Yanmar Agricultural Equipment Co Ltd filed Critical Yanmar Agricultural Equipment Co Ltd
Priority to JP16599579A priority Critical patent/JPS5687882A/en
Publication of JPS5687882A publication Critical patent/JPS5687882A/en
Pending legal-status Critical Current

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  • Measurement Of Unknown Time Intervals (AREA)

Abstract

PURPOSE: To make possible to reduce the size and weight of a measuring unit and carry out high accuracy measurement by accumulating the data about a duration of sunshine in an electric current integrating module which constitutes the measuring unit.
CONSTITUTION: With a changeover switch 40 turned to a solar cell 10 side, a measuring unit MU is placed at a position to measure the duration of sunshine. The quantity of silver ions corresponding to the duration of sunshine and the state of sunshine is accumulated in a center electrode 20k. Next, the changeover switch 40 is changed to a time measuring circuit 80 side. Time for passing the electric current to a module 20 by a constant current source 70 is measured by the time measuring circuit 80 which stops time measuring by breaking the current when the module 20 has come to be a clear state. From the value of the time measuring circuit 80, the state of sunshine is measured.
COPYRIGHT: (C)1981,JPO&Japio
JP16599579A 1979-12-19 1979-12-19 Heliograph Pending JPS5687882A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP16599579A JPS5687882A (en) 1979-12-19 1979-12-19 Heliograph

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP16599579A JPS5687882A (en) 1979-12-19 1979-12-19 Heliograph

Publications (1)

Publication Number Publication Date
JPS5687882A true JPS5687882A (en) 1981-07-16

Family

ID=15822907

Family Applications (1)

Application Number Title Priority Date Filing Date
JP16599579A Pending JPS5687882A (en) 1979-12-19 1979-12-19 Heliograph

Country Status (1)

Country Link
JP (1) JPS5687882A (en)

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5473087A (en) * 1977-11-22 1979-06-12 Fuji Kiki Kk Insolation integrating meter

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5473087A (en) * 1977-11-22 1979-06-12 Fuji Kiki Kk Insolation integrating meter

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