contributor author | R. C. S. Freire | |
contributor author | P. C. Lobo | |
contributor author | A. M. N. Lima | |
contributor author | A. Oliveira | |
contributor author | J. S. Rocha Neto | |
contributor author | G. S. Deep | |
date accessioned | 2017-05-08T23:57:46Z | |
date available | 2017-05-08T23:57:46Z | |
date copyright | May, 1998 | |
date issued | 1998 | |
identifier issn | 0199-6231 | |
identifier other | JSEEDO-28278#126_1.pdf | |
identifier uri | http://yetl.yabesh.ir/yetl/handle/yetl/121094 | |
description abstract | Calorimetric pyranometers use plane black thermal sensors which absorb solar radiation. If a thermoresistive transducer (sensor-detector combination) is used, the temperature measured is nearer the true value than for thermoelectric transducers. More importantly, the measurement of electrical power is much more accurate than the measurement of temperature. In commercial platinum (thermoresistive), thin film thermometers, the substrate produces transducer time constants an order of magnitude larger than for the best thermoelectric transducers. Use of an electronic amplifier with the thermoresistive sensor, forming one arm of a Wheatstone bridge and arranged in a negative feedback configuration, can reduce the overall response time considerably. Theoretical formulations of instrument response, taking into account the amplifier input offset voltage, are presented and the response time is estimated. | |
publisher | The American Society of Mechanical Engineers (ASME) | |
title | Dynamic Response of a Feedback Thermoresistive Electrical Substitution Pyranometer | |
type | Journal Paper | |
journal volume | 120 | |
journal issue | 2 | |
journal title | Journal of Solar Energy Engineering | |
identifier doi | 10.1115/1.2888055 | |
journal fristpage | 126 | |
journal lastpage | 130 | |
identifier eissn | 1528-8986 | |
keywords | Actinometers | |
keywords | Dynamic response | |
keywords | Feedback | |
keywords | Transducers | |
keywords | Sensors | |
keywords | Temperature measurement | |
keywords | Instrumentation | |
keywords | Thin films | |
keywords | Temperature | |
keywords | Electricity (Physics) | |
keywords | Electric potential | |
keywords | Solar radiation | |
keywords | Platinum AND Thermometers | |
tree | Journal of Solar Energy Engineering:;1998:;volume( 120 ):;issue: 002 | |
contenttype | Fulltext | |