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HEAT METER [11 records]

Record 1 2010-04-21

English

Subject field(s)
  • Hydroelectric Power Stations

French

Domaine(s)
  • Centrales hydro-électriques

Spanish

Save record 1

Record 2 2002-01-29

English

Subject field(s)
  • Remote Sensing
  • Electromagnetic Radiation
  • Military Equipment
CONT

... the [hand-held thermal imager] shows a black and white TV-like silhouette of a person up to 500 meters away. The uncovered parts of a person's face and hands produce high contrast in the standard TV image and appear bright. Clothing(with less heat) is darker, a tie is much cooler and therefore darkest. In addition to a 500 meter range for people, it can see vehicles out to 1, 500 meters.

Key term(s)
  • hand held thermal imager

French

Domaine(s)
  • Télédétection
  • Rayonnements électromagnétiques
  • Matériel militaire
OBS

système d'imagerie thermique portatif : Source : Revue nationale de défense nº 6/1984.

Spanish

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Record 3 2002-01-23

English

Subject field(s)
  • Crop Protection
CONT

Radiant frosts occur when large amounts of clear, dry air moves into an area and there is almost no cloud cover at night. During these times, the plants, soil, and other objects which are warmer than the very cold night sky will "radiate" their own heat back to space and become progressively colder. In fact, the plants cool(by radiating their heat) themselves to the point that they can cause their own damage. The plant tissues which are directly exposed to the sky become the coldest. These radiation losses can cause the buds, blossoms, twigs, leaves, etc. to become 1-2°C colder than the surrounding air which radiates very little of its heat.... The amount of heat lost to wind drift is often at least equal to radiative heat losses that are in the range of 10 to 30 watts per square meter(W/m2) or more. Consequently, the replacement heat must be greater than the sum of both radiative and advective heat losses during "successful" frost protection activities...

French

Domaine(s)
  • Protection des végétaux
CONT

Les techniques de lutte curative ou de lutte active consistent à modifier le bilan énergétique au moment du gel, soit en limitant les pertes de chaleurs par rayonnement, soit en les compensant par des apports de chaleur. Ces techniques de lutte peuvent se réaliser de différentes manières : - Par écrans solides placés au-dessus des cultures fragiles pour leur envoyer un rayonnement sensiblement égal à celui qu'elles émettent.

Spanish

Save record 3

Record 4 1999-02-04

English

Subject field(s)
  • Brewing and Malting
  • Industrial Techniques and Processes
CONT

In a pneumatic plant the germination bed depth will often be greater than one meter. If left alone, the heat produced would accelerate growth and the roots would matt together forming a solid mass. This was the problem that Galland had in his first plan. To overcome this, the bed must have a perforated floor with a chamber below so that air can be blown through the bed. Hence the term pneumatic malting. This air must be humidified to stop the grain from drying out, but more water will be lost from the bed than in floor malting. Additionally, the grain bed must be turned using large helical screw turners.

French

Domaine(s)
  • Brasserie et malterie
  • Techniques industrielles

Spanish

Save record 4

Record 5 1998-10-22

English

Subject field(s)
  • Metering Instruments
DEF

An integrating measuring instrument which progressively indicates values of the quantity measured accumulated over a certain length of time.

OBS

In the indicating device of an integrating meter the first moving element(disc, numbered roller, etc...) which has the smallest scale value normally moves continuously during the course of measurement. However, this continuity of movement does not always occur in the indicating devices of some other integrating measuring instruments, e. g. cyclic operating heat meter, hydrometric vane in which the indicating device is actuated by discontinuous impulses.

French

Domaine(s)
  • Compteurs de consommation et débitmètres
DEF

Appareil mesureur intégrateur qui indique progressivement les valeurs de la grandeur mesurée accumulées pendant un certain temps.

OBS

Dans le dispositif indicateur d'un compteur continu, le premier élément mobile (disque, rouleau chiffré, etc) qui a la plus petite valeur d'échelon se déplace ordinairement de façon continue au cours du mesurage. Cependant, cette continuité de mouvement n'existe pas toujours pour les dispositifs indicateurs de certains autres appareils mesureurs intégrateurs. Exemples : compteur de chaleur à fonctionnement cyclique, moulinet hydrométrique dont le dispositif indicateur est entraîné par des impulsions discontinues.

OBS

compteur : recommandation internationale de la Troisième Conférence Internationale de Métrologie Légale, 1968.

Spanish

Save record 5

Record 6 1997-07-11

English

Subject field(s)
  • Metrology and Units of Measure
  • Energy (Physics)
DEF

a unit of measurement of heat-production by the body : the metabolic heat produced by a resting-sitting subject, being 50 kilogram calories per square meter of body surface per hour.

French

Domaine(s)
  • Unités de mesure et métrologie
  • Énergie (Physique)
CONT

Le métabolisme énergétique W s'exprime en watts par mètre carré de surface corporelle, l'unité métabolique correspondante est le "met" : 1 met = 58 [watts par mètre carré].

Spanish

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Record 7 1996-12-12

English

Subject field(s)
  • Printing Machines and Equipment
  • Printing Processes - Various
DEF

On a printing press, the ink fountain and all the parts used to meter, transfer, distribute, cool or heat, and supply the ink to the printing forme.

French

Domaine(s)
  • Équipement (Imprimerie et arts graphiques)
  • Procédés d'impression divers
DEF

Ensemble mécanique qui permet l'alimentation en encre de la forme dans une machine à imprimer.

CONT

L'encrage des presses typographiques et des presses offset comprend : un rouleau preneur, un ensemble de rouleaux distributeurs et de tables (marbres plans ou, plus généralement, cylindres en métal) et des rouleaux encreurs, ou toucheurs.

Spanish

Save record 7

Record 8 1991-09-24

English

Subject field(s)
  • Metering Instruments

French

Domaine(s)
  • Compteurs de consommation et débitmètres
CONT

Dans le dispositif indicateur d'un compteur continu, le premier élément mobile [...] qui a la plus petite valeur d'échelon se déplace ordinairement de façon continue au cours du mesurage. Cependant, cette continuité de mouvement n'existe pas toujours pour les dispositifs indicateurs de certains autres appareils mesureurs intégrateurs. Exemples : compteur de chaleur à fonctionnement cyclique [...]

Spanish

Save record 8

Record 9 1987-05-01

English

Subject field(s)
  • Heat (Physics)
  • Scientific Instruments
  • Thermoelectricity and Thermoelectronics
DEF

a device which when placed in contact with a surface develops a voltage across it proportional to the heat flow into or out of the surface.

French

Domaine(s)
  • Chaleur (Physique)
  • Instruments scientifiques
  • Thermoélectrique et thermoélectronique
DEF

appareil qui, placé en contact avec une surface, produit une tension proportionnelle à l'écoulement de chaleur à travers cette surface.

Spanish

Save record 9

Record 10 1976-06-19

English

Subject field(s)
  • Measuring Instruments (Engineering)

French

Domaine(s)
  • Instruments de mesure (Ingénierie)

Spanish

Save record 10

Record 11 1976-06-19

English

Subject field(s)
  • Metering Instruments

French

Domaine(s)
  • Compteurs de consommation et débitmètres

Spanish

Save record 11

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