Metrology is the science of measurement. It establishes a common understanding of units, crucial in linking human activities. Modern metrology has its roots in the French Revolution's political motivation to standardise units in France, when a length standard taken from a natural source was proposed.
Electrical power equipment maintenance and testing. 7. Preventive Maintenance of Transformers. The objective of this section is to outline the recommended work practices that are usually performed for preventive maintenance of transformers.
Flow is the third most measured magnitude in industrial processes. It encompasses a wide range of applications from simple ones, like water flow in treatment stations and households, until industrial gases and fuel measurement, in addition to more complex ones
The accurate measurement of temperature is a vital parameter inmany fields. A critically important aspect of applying anytemperature sensor is that of traceable calibration - a conceptthat has been developed to ensure that all measurements made areaccurate and legally valid.
The simplest way to calibrate a temperature sensor is to check how it reads the temperature of two physical constants: the temperature at which ice melts and the boiling point of water (although the latter should be corrected for atmospheric pressure).
ASHRAE Guideline 0-2013 –Published guideline. (Supersedes ASHRAE Guideline 0-2005) The Commissioning Process. 1. PURPOSE: 1.1 The purpose of this guideline is to describe the Commissioning Process capable of verifying that the facility and its systems meet the Owner's Project Requirements.
In particular, a few computers at NASA's Goddard Institute seem to be having a disproportionate effect on global warming. Anthony Watt takes a cut at an analysis I have tried myself several times, comparing raw USHCN temperature data to the final adjusted values delivered from that data by the NASA computers.