pyrheliometer


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pyr·he·li·om·e·ter

 (pīr′hē-lē-ŏm′ĭ-tər, pĭr′-)
n.
Any of various devices that measure the intensity of solar radiation received at the earth.
American Heritage® Dictionary of the English Language, Fifth Edition. Copyright © 2016 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.

pyrheliometer

(pəˌhiːlɪˈɒmɪtə)
n
(General Physics) an instrument for measuring the intensity of the sun's radiant energy
pyrheliometric adj
Collins English Dictionary – Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014

pyr•he•li•om•e•ter

(ˌpaɪər hi liˈɒm ɪ tər, ˌpɪr-)

n.
an instrument for measuring the total intensity of the sun's energy radiation.
[1860–65]
Random House Kernerman Webster's College Dictionary, © 2010 K Dictionaries Ltd. Copyright 2005, 1997, 1991 by Random House, Inc. All rights reserved.

pyrheliometer

an instrument for measuring the intensity of the sun’s radiation. — pyrheliometric, adj.
See also: Instruments
an instrument for measuring the intensity of the sun’s radiation. — pyrheliometric, adj.
See also: Sun
-Ologies & -Isms. Copyright 2008 The Gale Group, Inc. All rights reserved.
References in periodicals archive ?
Digital flow transducer S8011R was used to measure mass flow rate in the range of 50-1000 kg/h, whereas climate data including wind velocity and solar radiations are measured through hot wire anemometer and pyrheliometer model TBS-2-2 with a spectral range of 280-3000 nm and sensitivity of 9.876 [micro]V/W[m.sup.-2].
ASTM, 2005: Standard test method for calibration of a pyranometer using a pyrheliometer. ASTM G167-05, ASTM International, 21 pp, doi:10.1520/G0167-05.
DNI is measured with a first-class pyrheliometer, whereas DIF is measured with a first-class pyranometer with low thermal imbalance and equipped with a tracking shade to permanently block the sun within a subtended cone roughly equal to that of the pyrheliometer's field of view.
Even for solar collectors, depending on the type of concentrator, either a pyranometer or a pyrheliometer is needed for accurate measurement of the received energy.
Pyranometer or pyrheliometer is used to measure solar radiation.
In parallel, broadband direct solar irradiance [S.sub.h] was registered at Toravere every 3 min (an AT-50 actinometer was used as an operational pyrheliometer).
A pyrheliometer, thermometers, a watt-hour meter, and so forth are also installed to collect the data needed for a detailed analysis of the BIPV system.
The "apparent" clear-sky solar transmission (AT) is calculated from the ratio of direct-beam broadband irradiance measurements from a pyrheliometer using fixed atmospheric paths (Ellis and Pueschel 1971).
They measured the angular transmittance and reflectance of both fabrics and draperies with a pyrheliometer. Their results showed that the trans-mittance of the drapery at normal incidence was almost the same as that of the fabric.