Search results
Results from the WOW.Com Content Network
Using the vernier caliper A biologist uses calipers to measure the length of a bird's leg. A caliper must be properly applied against the part in order to take the desired measurement. For example, when measuring the thickness of a plate, a vernier caliper must be held at right angles to the piece.
In measurement technology and metrology, calibration is the comparison of measurement values delivered by a device under test with those of a calibration standard of known accuracy. Such a standard could be another measurement device of known accuracy, a device generating the quantity to be measured such as a voltage , a sound tone, or a ...
Electrical measurements are the methods, devices and calculations used to measure electrical quantities. Measurement of electrical quantities may be done to measure electrical parameters of a system. Using transducers, physical properties such as temperature, pressure, flow, force
A physical system that exchanges energy may be described by the amount of energy exchanged per time-interval, also called power or flux of energy. (see any measurement device for power below) For the ranges of power-values see: Orders of magnitude (power).
Portable instruments, usually equipped to also measure current and resistance in the form of a multimeter are standard test instruments used in electrical and electronics work. Any measurement that can be converted to a voltage can be displayed on a meter that is suitably calibrated; for example, pressure, temperature, flow or level in a ...
The clamp measures the current and other circuitry the voltage; the true power is the product of the instantaneous voltage and current integrated over a cycle. Comprehensive meters designed to measure many parameters of electrical energy (power factor, distortion, instantaneous power as a function of time, phase relationships, etc.), use this ...
Accuracy classes are defined and used in IEC and ANSI standards. Classes are denoted by either a letter or percentage. Classes are denoted by either a letter or percentage. For example, Class B is a temperature accuracy from IEC-751 that requires accuracy of ± 0.15 degrees Celsius .
Measures the power factor Distortionmeter: Measures the distortion added to a circuit Electricity meter: Measures the amount of energy dissipated ESR meter: Measures the equivalent series resistance of capacitors Frequency counter: Measures the frequency of the current Leakage tester: Measures leakage across the plates of a capacitor LCR meter