## Glossary

Este es el glosario

- Absolute Humiditysearch for term
the mass of water vapor in a unit volume of gas mixture.

- Absolute Pressuresearch for term
the pressure exerted on a vacuum.

- Accelerationsearch for term
the speed of change of velocity

- Adiabaticsearch for term
a process which takes place without any exchange of heat between a system and its surrounding

- Ambientsearch for term
surrounding or prevailing conditions

- Ammetersearch for term
An ammeter is a measuring instrument used to measure the flow of electric current in a circuit. Electric currents are measured in amperes, hence the name. The word "ammeter" is commonly misspelled or mispronounced as "ampmeter" by some.

**Synonyms**: ampmeter- Amp-Hoursearch for term
a quantity of electricity equal to the integral of the current with time.

- Amperesearch for term
the metric unit for electric current

**Synonyms**: amperesamper- Anemometersearch for term
a device for measuring wind speed

- Angstromsearch for term
a unit of length defined as 1/6438.4696 of the wavelength of Cadmium red line, very close to 10-10 meter

- Barometersearch for term
an absolute pressure gauge for measuring atmospheric pressure.

- Baselinesearch for term
A reference set of data against which operating data is compared

- biassearch for term
The systematic or persistent distortion of a

measurement process, which causes errors in one direction (i.e., the

expected sample measurement is different from the sample's true value).- Blackbodysearch for term
an object that absorbs all incident radiation regardless of spectral or

directional composition. A black body will also radiate energy at a

rate expressed by the Stefan-Boltzmann Law with a spectral distribution

expressed by Planck's radiation equation.- Bolometersearch for term
an infrared detector that functions by measuring the heating effect of the incident radiation

- Bridgesearch for term
an electronic network that effectively provides zero offsetting.

- Calibrationsearch for term
to ascertain the relationship between the input and output of a sensor or measuring device

- Electrical resistancesearch for term
Electrical resistance is a measure of the degree to which an electrical component opposes the passage of current. It is the ratio of the potential difference (i.e. voltage) across an electric component (such as a resistor) to the current passing through that component.

**Synonyms**: resistance- Fahrenheitsearch for term
The temperature scale in which water freezes at 32

degrees F and boils at 212 degrees F. Named after Gabriel Fahrenheit.

Temperatures of the Fahrenheit scale can be converted to equivalent

temperatures on the CELSIUS or Centigrade scale by first subtracting 32

[degrees] from the Fahrenheit temperature, then multiplying the result

by 5/9 according to the formula: (F -32) X 5/9 = C. F - Fahrenheit S -

Fahrenheit- Hall effectsearch for term
The Hall effect refers to the potential difference (voltage) on opposite sides of a thin sheet of conducting or semiconducting material in the form of a 'Hall bar' or a van der Pauw element through which an electric current is flowing, created by a magnetic field applied perpendicular to the Hall element.

**Synonyms**: hall- Kelvinsearch for term
The kelvin (symbol: K) is the SI unit of temperature, and is one of the seven SI base units. It is defined by two facts: zero kelvins is absolute zero (when molecular motion stops), and one kelvin is the fraction 1/273.16 of the thermodynamic temperature of the triple point of water. The Celsius temperature scale is now defined in terms of the kelvin, with 0 °C corresponding to 273.15 kelvins, approximately the melting point of water under ordinary conditions.

**Synonyms**: kelvins- pHsearch for term
Measure of the relative acidity or alkalinity of

water. Defined as the negative log (base 10) of the hydrogen ion

concentration. Water with a pH of 7 is neutral; lower pH levels

indicate an increasing acidity, while pH levels above 7 indicate

increasingly basic solutions.- Piezoelectricitysearch for term
The ability of certain crystals to produce a voltage when subjected to mechanical stress. The word is derived from the Greek piezein, which means to squeeze or press.

**Synonyms**: piezoelectric effect- Resistorsearch for term
An ideal resistor is a component with an electrical

resistance that remains constant regardless of the applied voltage or current flowing through the device.

While "real world" resistors cannot attain this perfect goal, they are designed to present little variation in electrical

resistance when subjected to changing temperature and other environmental

factors.

Resistors may be fixed or variable. Variable resistors are also called potentiometers or rheostats and allow the resistance of the device to be altered by turning a shaft or sliding a control.- Viscositysearch for term
A measure of internal friction of a fluid. Metric units of viscosity

are poise, however there are a number of other units used in industry,

particularly for lubricants and sugar.- Voltsearch for term
The volt is the SI derived unit for electric potential and voltage (derived from the ampere and watt). It is named in honor of Alessandro Volta, who, in 1800, invented the voltaic pile, the first chemical battery.The volt is defined as the potential difference across a conductor when a current of one ampere dissipates one watt of power.

**Synonyms**: volts- Zero Suppressionsearch for term
A process used to increase system sensitivity of sensors with a large

output offset. By suppressing the zero, higher amplification may be

applied. The bridge circuit is an example