JPS57120809A - Sensor for measuring tracking accuracy of heliostat - Google Patents

Sensor for measuring tracking accuracy of heliostat

Info

Publication number
JPS57120809A
JPS57120809A JP56006428A JP642881A JPS57120809A JP S57120809 A JPS57120809 A JP S57120809A JP 56006428 A JP56006428 A JP 56006428A JP 642881 A JP642881 A JP 642881A JP S57120809 A JPS57120809 A JP S57120809A
Authority
JP
Japan
Prior art keywords
photodetector
output
photodetectors
equal
light
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.)
Granted
Application number
JP56006428A
Other languages
Japanese (ja)
Other versions
JPS5841442B2 (en
Inventor
Kenichi Yanagi
Toshio Taguchi
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.)
National Institute of Advanced Industrial Science and Technology AIST
Original Assignee
Agency of Industrial Science and Technology
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 Agency of Industrial Science and Technology filed Critical Agency of Industrial Science and Technology
Priority to JP56006428A priority Critical patent/JPS5841442B2/en
Publication of JPS57120809A publication Critical patent/JPS57120809A/en
Publication of JPS5841442B2 publication Critical patent/JPS5841442B2/en
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01C—MEASURING DISTANCES, LEVELS OR BEARINGS; SURVEYING; NAVIGATION; GYROSCOPIC INSTRUMENTS; PHOTOGRAMMETRY OR VIDEOGRAMMETRY
    • G01C1/00—Measuring angles

Abstract

PURPOSE:To perform signal processing easily with less photodetectors by using two pieces of photodetectors of specificed shapes and sized. CONSTITUTION:When the solar light is made incident in parallel to a supporting body 21 from above an annular photodetector 23, the solar light falls onto the entire area of a circular photodetector 22 and the photodetector 23. In this case, the photodetectors 22 and 23 are equal in area and therefore, they produce equal outputs. When the light begins to deviate, the diameter of the photodetector 22 and the bore of the photodetector 23 are equal and therefore the shadow of the photodetector 23 is made on the photodetector 22, and as a result, the output of the photodetector 22 becomes smaller than the output of the photodetector 23. Thereupon if the output of the photodetector 22 is divided by the output of the photodetector 23 and signal processing is accomplished, the rate of deviation of the light is determined easily.
JP56006428A 1981-01-21 1981-01-21 Heliostat tracking accuracy measurement sensor Expired JPS5841442B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP56006428A JPS5841442B2 (en) 1981-01-21 1981-01-21 Heliostat tracking accuracy measurement sensor

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP56006428A JPS5841442B2 (en) 1981-01-21 1981-01-21 Heliostat tracking accuracy measurement sensor

Publications (2)

Publication Number Publication Date
JPS57120809A true JPS57120809A (en) 1982-07-28
JPS5841442B2 JPS5841442B2 (en) 1983-09-12

Family

ID=11638111

Family Applications (1)

Application Number Title Priority Date Filing Date
JP56006428A Expired JPS5841442B2 (en) 1981-01-21 1981-01-21 Heliostat tracking accuracy measurement sensor

Country Status (1)

Country Link
JP (1) JPS5841442B2 (en)

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6448608U (en) * 1987-09-18 1989-03-27
WO1994011703A1 (en) * 1992-11-06 1994-05-26 Nippondenso Co., Ltd. Pyrheliometric sensor
US5979438A (en) * 1997-10-15 1999-11-09 Mitaka Kohki Co., Ltd. Sunlight collecting system
US6231197B1 (en) 2000-03-20 2001-05-15 Mitaka Kohkico., Ltd. Heliostat for sunlight collecting system
WO2009057677A1 (en) * 2007-10-31 2009-05-07 Mitsui Engineering & Shipbuilding Co., Ltd. Solar light tracking sensor direction setting/measuring/re-adjusting method and solar light collecting device
JP2010007976A (en) * 2008-06-27 2010-01-14 Mitsui Eng & Shipbuild Co Ltd Calibration method and calibration apparatus for heliostat
JP2010151934A (en) * 2008-12-24 2010-07-08 Mitaka Koki Co Ltd Optical positioning method and structure of sunlight collection system
US10511254B1 (en) * 2015-08-03 2019-12-17 Biolite, Inc. Solar panel alignment device

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59103087A (en) * 1982-12-02 1984-06-14 N T C Kogyo Kk Pressure safety valve device
JPS60156361U (en) * 1984-03-26 1985-10-18 株式会社　アタゴ製作所 Freeze prevention device for pre-stop water heaters

Cited By (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6448608U (en) * 1987-09-18 1989-03-27
WO1994011703A1 (en) * 1992-11-06 1994-05-26 Nippondenso Co., Ltd. Pyrheliometric sensor
US5602384A (en) * 1992-11-06 1997-02-11 Nippondenso Co., Ltd. Sunlight sensor that detects a distrubition and amount of thermal load
US5979438A (en) * 1997-10-15 1999-11-09 Mitaka Kohki Co., Ltd. Sunlight collecting system
US6231197B1 (en) 2000-03-20 2001-05-15 Mitaka Kohkico., Ltd. Heliostat for sunlight collecting system
JP2009109136A (en) * 2007-10-31 2009-05-21 Mitsui Eng & Shipbuild Co Ltd Direction setting/measuring/readjusting method of solar light tracking sensor and solar light collecting device
WO2009057677A1 (en) * 2007-10-31 2009-05-07 Mitsui Engineering & Shipbuilding Co., Ltd. Solar light tracking sensor direction setting/measuring/re-adjusting method and solar light collecting device
JP4541395B2 (en) * 2007-10-31 2010-09-08 三井造船株式会社 Direction setting method of solar light tracking sensor
AU2011201563B2 (en) * 2007-10-31 2012-04-05 Mitsui Engineering & Shipbuilding Co.,Ltd. Solar light tracking sensor direction setting/measuring/re-adjusting method and solar light collecting device
ES2386465A1 (en) * 2007-10-31 2012-08-21 Mitsui Engineering & Shipbuilding Co., Ltd. Solar light tracking sensor direction setting/measuring/re-adjusting method and solar light collecting device
US8605273B2 (en) 2007-10-31 2013-12-10 Mitsui Engineering & Shipbuilding Co., Ltd. Solar light tracking sensor direction setting/measuring/re-adjusting method and solar light collecting device
JP2010007976A (en) * 2008-06-27 2010-01-14 Mitsui Eng & Shipbuild Co Ltd Calibration method and calibration apparatus for heliostat
JP4564553B2 (en) * 2008-06-27 2010-10-20 三井造船株式会社 Heliostat calibration method and calibration apparatus
JP2010151934A (en) * 2008-12-24 2010-07-08 Mitaka Koki Co Ltd Optical positioning method and structure of sunlight collection system
US10511254B1 (en) * 2015-08-03 2019-12-17 Biolite, Inc. Solar panel alignment device

Also Published As

Publication number Publication date
JPS5841442B2 (en) 1983-09-12

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