MEASURING AND RECORDING ELECTRICITY IN HORTICULTURAL RESEARCH
- Measurement of m-units (V - A),
- Measurement of effect (W = energy per time),
- Operation time recording (on-off control),
- Running-time counting,
for the purpose of internal information about the stability of the supply (a + b), investigation of the characteristics of regulating equipment (c) and the total load time of consuming units (d).
The quantitative measurements are discussed under the points:
- Total measuring,
- Continuous measuring and recording,
(b1) Electromechanic impulse counting,
(b2) Electronic impulse counting,
and are emphasized as being indispensable for a true comparison of the effectiveness of, for instance, heating and irradiation installations.
It is pointed out that some investigations using electricity as a capacity factor - for example, the comparison of different irradiation methods - can have wrong conclusions without a quantitative measurement of the energy consumed.
The components in the measuring field are outlined in figures.