Estimation of Initial and Response Times of Laser Dew-Point Hygrometer by Measurement Simulation
The initial and the response times of the laser dew-point hygrometer were evaluated by measurement simulation. The simulation was based on loop computations of the surface temperature of a plate with dew deposition, the quantity of dew deposited and the intensity of scattered light from the surface...
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| Veröffentlicht in: | Japanese Journal of Applied Physics 1995, Vol.34 (10), p.5847-5852, Article 5847 |
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| container_title | Japanese Journal of Applied Physics |
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| creator | MATSUMOTO, S TOYOOKA, S |
| description | The initial and the response times of the laser dew-point hygrometer were evaluated by measurement simulation. The simulation was based on loop computations of the surface temperature of a plate with dew deposition, the quantity of dew deposited and the intensity of scattered light from the surface at each short interval of measurement. The initial time was defined as the time necessary for the hygrometer to reach a temperature within ±0.5° C of the measured dew point from the start time of measurement, and the response time was also defined for stepwise dew-point changes of +5° C and -5° C. The simulation results are in approximate agreement with the recorded temperature and intensity of scattered light of the hygrometer. The evaluated initial time ranged from 0.3 min to 5 min in the temperature range from 0° C to 60° C, and the response time was also evaluated to be from 0.2 min to 3 min. |
| doi_str_mv | 10.1143/JJAP.34.5847 |
| format | Article |
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The simulation was based on loop computations of the surface temperature of a plate with dew deposition, the quantity of dew deposited and the intensity of scattered light from the surface at each short interval of measurement. The initial time was defined as the time necessary for the hygrometer to reach a temperature within ±0.5° C of the measured dew point from the start time of measurement, and the response time was also defined for stepwise dew-point changes of +5° C and -5° C. The simulation results are in approximate agreement with the recorded temperature and intensity of scattered light of the hygrometer. The evaluated initial time ranged from 0.3 min to 5 min in the temperature range from 0° C to 60° C, and the response time was also evaluated to be from 0.2 min to 3 min.</description><identifier>ISSN: 0021-4922</identifier><identifier>EISSN: 1347-4065</identifier><identifier>DOI: 10.1143/JJAP.34.5847</identifier><identifier>CODEN: JJAPA5</identifier><language>eng</language><publisher>Tokyo: Japanese journal of applied physics</publisher><subject>Exact sciences and technology ; General equipment and techniques ; Hygrometers ; Instruments, apparatus, components and techniques common to several branches of physics and astronomy ; Physics</subject><ispartof>Japanese Journal of Applied Physics, 1995, Vol.34 (10), p.5847-5852, Article 5847</ispartof><rights>1996 INIST-CNRS</rights><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c387t-af36810880914d3a69aab539a757e9230c87d5de54fe18b672f635e4042ce7313</citedby><cites>FETCH-LOGICAL-c387t-af36810880914d3a69aab539a757e9230c87d5de54fe18b672f635e4042ce7313</cites></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><link.rule.ids>314,776,780,4010,27900,27901,27902</link.rule.ids><backlink>$$Uhttp://pascal-francis.inist.fr/vibad/index.php?action=getRecordDetail&idt=2894557$$DView record in Pascal Francis$$Hfree_for_read</backlink></links><search><creatorcontrib>MATSUMOTO, S</creatorcontrib><creatorcontrib>TOYOOKA, S</creatorcontrib><title>Estimation of Initial and Response Times of Laser Dew-Point Hygrometer by Measurement Simulation</title><title>Japanese Journal of Applied Physics</title><description>The initial and the response times of the laser dew-point hygrometer were evaluated by measurement simulation. The simulation was based on loop computations of the surface temperature of a plate with dew deposition, the quantity of dew deposited and the intensity of scattered light from the surface at each short interval of measurement. The initial time was defined as the time necessary for the hygrometer to reach a temperature within ±0.5° C of the measured dew point from the start time of measurement, and the response time was also defined for stepwise dew-point changes of +5° C and -5° C. The simulation results are in approximate agreement with the recorded temperature and intensity of scattered light of the hygrometer. 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The simulation was based on loop computations of the surface temperature of a plate with dew deposition, the quantity of dew deposited and the intensity of scattered light from the surface at each short interval of measurement. The initial time was defined as the time necessary for the hygrometer to reach a temperature within ±0.5° C of the measured dew point from the start time of measurement, and the response time was also defined for stepwise dew-point changes of +5° C and -5° C. The simulation results are in approximate agreement with the recorded temperature and intensity of scattered light of the hygrometer. The evaluated initial time ranged from 0.3 min to 5 min in the temperature range from 0° C to 60° C, and the response time was also evaluated to be from 0.2 min to 3 min.</abstract><cop>Tokyo</cop><pub>Japanese journal of applied physics</pub><doi>10.1143/JJAP.34.5847</doi><tpages>6</tpages></addata></record> |
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| ispartof | Japanese Journal of Applied Physics, 1995, Vol.34 (10), p.5847-5852, Article 5847 |
| issn | 0021-4922 1347-4065 |
| language | eng |
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| source | IOP Publishing Journals; Institute of Physics (IOP) Journals - HEAL-Link |
| subjects | Exact sciences and technology General equipment and techniques Hygrometers Instruments, apparatus, components and techniques common to several branches of physics and astronomy Physics |
| title | Estimation of Initial and Response Times of Laser Dew-Point Hygrometer by Measurement Simulation |
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