Dew Point Temperature

Dew point is a measure of atmospheric moisture. It is the temperature to which air must be cooled to reach saturation (assuming air pressure and moisture content are constant). A higher dew point indicates more moisture present in the air. It is sometimes referred to as dew point temperature, and...


Emissivity is the ability of an object to emit or absorb energy. Perfect emitters have an emissivity of 1, emitting 100% of incident energy. An object with an emissivity of 0.8 will absorb 80% and reflect 20% of the incident energy. Emissivity may vary with temperature and spectral response (wavelength)....


Light-electricity. Solar-energy. "Photovoltaic" has two parts: photo, derived from the Greek word for light, and volt, from electricity pioneer Alessandro Volta. And that's exactly what photovoltaic systems do -- turn light into electricity!

Power Amplifier

An amplifier is an electronic device used to increase the magnitude of voltage/current/power of an input signal. It takes in a weak electrical signal/waveform and reproduces a similar stronger waveform at the output by using an external power source. A power amplifier is an electronic amplifier designed to increase the magnitude...


A shaker is a device used in vibration testing to excite the structure either for endurance testing or modal testing. Source:

Signal Generator

A signal generator is one of a class of electronic devices that generates electronic signals with set properties of amplitude, frequency, and wave shape. Source:

Sinusoidal Vibration

Sinusoidal or Sine Vibration has the shape of a sine wave. The parameters used to define sinusoidal vibration testing are amplitude (usually acceleration or displacement), frequency, sweep rate and number of sweeps. Source:

Spectral Range

The infrared spectral range is 0.7 to 1000 μm, the range for wavelength in which infrared radiation is transmitted. For cost reasons, IR thermometers generally operate under 20 μm. Most of the IR thermometers that we carry have a spectral response of 8-20 μm. This range is used because it...


A transducer is a device that converts energy from one form to another. Usually a transducer converts a signal in one form of energy to a signal in another Source:

Vibration Acceleration

Being a measure of the rate at which velocity changes, acceleration is measured in meters per second. We can think of it as the meters per second change in velocity every second. In vibration testing, acceleration is measured in the unit g or G, where 1 G is equivalent to...