wavelength calibration
21Microphone — For the indie film, see Microphone (film). Microphones redirects here. For the indie band, see The Microphones. A …
22Interference (wave propagation) — Two point interference in a ripple tank. In physics, interference is the phenomenon in which two waves superpose each other to form a resultant wave of greater or lower amplitude. Interference usually refers to the interaction of waves that are… …
23Near-infrared spectroscopy — Near IR absorption spectrum of dichloromethane showing complicated overlapping overtones of mid IR absorption features. Near infrared spectroscopy (NIRS) is a spectroscopic method that uses the near infrared region of the electromagnetic spectrum …
24Laserdisc — Not to be confused with disk laser, a flat configuration solid state laser. Not to be confused with VCD, DVD, or Blu ray, optical disc formats employing digital video encoding. Not to be confused with CED, a coincident but incompatible analogue… …
25Moderate-Resolution Imaging Spectroradiometer — MODIS redirects here. For the company, see MPS Group. Ash plumes on Kamchatka Peninsula, eastern Russia …
26Breathalyzer — A breathalyzer is a (breath analyser) device for estimating blood alcohol content (BAC) from a breath sample. Breathalyzer is the brand name of a series of models made by one manufacturer of these instruments (originally Smith and Wesson, later… …
27Chemometrics — is the science of extracting information from chemical systems by data driven means. It is a highly interfacial discipline, using methods frequently employed in core data analytic disciplines such as multivariate statistics, applied mathematics,… …
28Optical attenuator — Variable Optical Attenuator An optical attenuator is a device used to reduce the power level of an optical signal, either in free space or in an optical fiber. The basic types of optical attenuators are fixed, step wise variable, and continuously …
29Interferometry — is the technique of using the pattern of interference created by the superposition of two or more waves to diagnose the properties of the aforementioned waves. The instrument used to interfere the waves together is called an interferometer.… …
30Flow measurement — is the quantification of bulk fluid movement. Flow can be measured in a variety of ways. Positive displacement flow meters acumulate a fixed volume of fluid and then count the number of times the volume is filled to measure flow. Other flow… …
