Dielectrometric Sensors

Solid-state conductivity (chemiresistance) sensors Dielectrometric sensors Dielectric sensors Absorptivity elements Index of refraction elements... 

When a periodically changing excitation signal is chosen for the operation of chemiresistors, they can be used to detect changes of capacitance (Fig. 8.1b). Therefore, the dielectrometric sensors rely on the chemical modulation of one or more equivalent circuit capacitors, either through the change of the dielectric constant of the chemically sensitive layer or through the chemical modulation of the interfacial charge. 

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