Actinometer
Definition
A structural meteorological and physical instrument utilized for measuring the intensity of radiant energy, specifically direct solar radiation. The device operates based on the absorption of rays by an ideal black body, converting luminous energy into heat, which is subsequently determined via thermoelectric or bimetallic methods, or by directly evaluating light-triggered photochemical reactions over a fixed time interval.
Bilingual Equivalents
- Actinometer
- Solar radiation meter
Grammatical & Source Details
| Inflection Type | Neuter noun, articulated: actinometrul, plural: actinometre, genitive-dative: actinometrelor. |
| Formation | Scientific compound composed of the combining form 'actino-' (ray) and the suffix '-meter' (measuring device), borrowed from French 'actinomètre'. |
| Spelling / Pronunciation | [ak.ti.no.ˈme.tru] |
| Source | World Meteorological Organization Standards and Lexicon of Measurement Instruments |
Contextual Usage Examples
RO: Meteorologul a orientat acest actinometru direct spre soare pentru a înregistra valoarea maximă a amiezii.
EN: The meteorologist oriented this actinometer directly toward the sun to record the maximum midday value.
RO: Calibrarea periodică a unui actinometru este obligatorie pentru a preveni erorile cauzate de uzura senzorului.
EN: The periodic calibration of an actinometer is mandatory to prevent errors caused by sensor wear.
RO: Noul actinometru digital transmite automat datele despre radiații către serverul central al institutului.
EN: The new digital actinometer automatically transmits radiation data to the institute's central server.
Idioms & Phrases
Actinometru bimetalic / Bimetallic actinometer
RO: Dispozitiv care măsoară radiația solară prin deformarea mecanică a două lamele metalice cu coeficienți diferiți de dilatare.
EN: A device that measures solar radiation through the mechanical deformation of two metallic strips with different expansion coefficients.
Calibrare de actinometru / Actinometer calibration
RO: Procedură structurală de laborator prin care se verifică precizia aparatului în raport cu un etalon radiometric absolut.
EN: A structural laboratory procedure verifying the device's accuracy in relation to an absolute radiometric benchmark.
Actinometru chimic / Chemical actinometer
RO: Sistem bazat pe o soluție chimică etalon, utilizat pentru determinarea numărului de fotoni absorbiți prin evaluarea ratei de reacție.
EN: A system based on a standard chemical solution, used to determine the number of absorbed photons by evaluating the reaction rate.
Latest Contextual News
No recent news found for this topic.