potentiometer

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po·ten·ti·om·e·ter

(pō-ten'shē-om'ĕ-tĕr),
1. An instrument used for measuring small differences in electrical potential.
2. An electrical resistor of fixed total resistance between two terminals, but with a third terminal attached to a slider that can make contact at any desired point along the resistance.
[L. potentia, power, + G. metron, measure]

potentiometer

(pō-tĕn″shē-ŏm′ĕ-tĕr)
A voltmeter.

calibration potentiometer

A mechanically adjusted resistance used as a calibration control on many instruments. It adjusts a voltage or current within the device.
References in periodicals archive ?
Alexander, Flow Injection Potentiometry by poly(vinyl chloride)- Membrane Electrodes with Substituted Azacrown Ionophores for the Determination of Lead(II) and Mercury(II) Ions, Anal.
The use of hybrid electronic tongues, which use sensors of different nature (potentiometry, amperometry, conductance, spectrophotometry, and gas sensing), was described in the late nineties as a powerful tool for improving the results of wine analysis with sensors [12, 13].
Chondhekar, "Synthesis, characterization, potentiometry, and antimicrobial studies of transition metal complexes of a tridentate ligand," Journal of Coordination Chemistry, vol.
An equilibrium and structural study in solution using potentiometry, multinuclear NMR, ATR-FTIR, ESI-MS and DFT calculations," Journal of Inorganic Biochemistry, vol.
The structures and functions of the sensilla of EGW adults still need to be further investigated by immuno-electron microscopy and by single-cell receptor potentiometry. The functions of the different sensilla still need to be better elucidated and verified.
Dissolution of [Ca.sup.2+] ions released from the ball-milled [alpha]-TCP powder with and without IP6 surface modification was measured using ion-selective potentiometry (F-73, Horiba, Japan).
The combined sorbent and both components were characterized by FTIR spectrometry and their acidobasic titration curves measured by potentiometry. For the combined sorbent and the original lignite, specific surface, volume, surface and distribution of micro-, meso-, and macropores, average pore size and porosity, and proton exchange capacity were measured.
From potentiometry, UV-Vis, and IR spectroscopy work it appeared that there is strong binding.
Sodium, potassium, bicarbonate, calcium, urea and zinc were analysed using a number of techniques including indirect potentiometry, using selective electrode enzymatic rate and colorimetric methods.
de C.V.) by means of the reflectance spectrophotometry methodology and direct potentiometry.
Here US and European chemists cover advances in potentiometry, electrochemistry at platinum single-crystal electrodes, applying scanning electrochemical microscopy to corrosion studies, and the surface interrogation mode of scanning electrochemical microscopy: an approach to the study of adsorption and (electro)catalysis at electrodes.