tunable - meaning and definition. What is tunable
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What (who) is tunable - definition

TECHNIQUE FOR MEASURING CHEMICAL COMPOSITION OF A GAS
TDLAS; Tunable Diode Laser Absorption Spectroscopy; Tunable diode laser absorption spectrometry; Tunable Diode Laser Absorption Spectrometry

Tunable      
·adj Capable of being tuned, or made harmonious; hence, harmonious; musical; tuneful.
tunable      
a.
1.
That may be tuned.
2.
Harmonious, musical, tuneful, melodious, sweet.
Tunable metamaterial         
  • via]]s.

:''Bottom image'' - Looking down on top of the high-impedance surface, showing a triangular lattice of hexagonal metal plates. The configuration creates a capacitive and inductive surface. It can be utilized as band gap material at prescribed frequencies. It is also designed to enhance antenna operation as a novel periodic material.<ref name=bandgap/>
Artificial magnetic conductor; Tunable metamaterials
A tunable metamaterial is a metamaterial with a variable response to an incident electromagnetic wave. This includes remotely controlling how an incident electromagnetic wave (EM wave) interacts with a metamaterial.

Wikipedia

Tunable diode laser absorption spectroscopy

Tunable diode laser absorption spectroscopy (TDLAS, sometimes referred to as TDLS, TLS or TLAS) is a technique for measuring the concentration of certain species such as methane, water vapor and many more, in a gaseous mixture using tunable diode lasers and laser absorption spectrometry. The advantage of TDLAS over other techniques for concentration measurement is its ability to achieve very low detection limits (of the order of ppb). Apart from concentration, it is also possible to determine the temperature, pressure, velocity and mass flux of the gas under observation. TDLAS is by far the most common laser based absorption technique for quantitative assessments of species in gas phase.

Examples of use of tunable
1. The Matisse is a tunable ring laser incorporating wavelength scanning by a long–travel stabilised piezo, fast cavity–length stabilisation by an intra–cavity electro–optical modulator and high–performance digital signal processing. (I have read that sentence four times and I still dont have a clue what it means, but then, its the impression that matters.) Dante, on the other hand, is a circuit–level firewall/proxy that can be used to provide convenient and secure network connectivity to a wide range of hosts.