area meter

area meter

[′er·ē·ə ‚mēd·ər]
(engineering)
A mechanism to measure fluid flow rate through a fixed-area conduit by the movement of a weighted piston or float supported by the flowing fluid; includes rotameters and piston-type meters.
References in periodicals archive ?
Among the methods most used to determine LA, one of the most requested are: the destructive method, where the leaves are collected and taken for laboratory analysis where the treadmill leaf area meter (LI-COR 3100[C]) is installed.
leaf area meter, blueprinting, and photographing), but all of these methods are time consuming, require the excision of leaves from the plants and do not allow the same leaves to be measured later (Rouphael et al., 2010).
Sampling of the soybean and the pigweed was carried out 57 days after appearance that L11 and Clark was in R3 and Pershing was in R1 [12]; all samples were transferred to the laboratory, leaves and stem were separated and for every sample the area of green leaves was measured with a leaf area meter LICOR-3100.
A portable leaf area meter measures the leaf area with high accuracy, but they are mostly expensive.
A area foliar real foi determinada usando o integrador de area foliar portatil "Area Meter" (modelo AM 300, ADC BioScientific, Inglaterra).
Spirax Sarco brings unrivalled accuracy to steam metering with the launch of its TVA steam flow meter, a next-generation spring-loaded inline variable area meter.
Bronkhorst High-Tech, a leader in thermal mass flow metering and control instrumentation, has developed a no-nonsense, digital alternative to the conventional VA meter (variable area meter) or rotameter, a design that dates back to the 19th century.
BRONKHURST High-Tech, European market leader in thermal mass flow metering and control instrumentation, has developed a no-nonsense, digital alternative to the conventional VA meter (variable area meter) or rotameter, a design that dates back to the 19th century.
The variable area meter has a low pressure drop, typically 1-5 psig with an accuracy of 2 percent of full scale.
Area of all leaves on 20 of these plants (randomly selected) was measured with a LI-COR LI-3000A leaf area meter. Again, LAI was determined with each of the meters.
Transparencies were also scanned with a LI-COR Model 3100 leaf area meter. Values of area obtained with this instrument were for the black background rather than for the residue.