What's the difference between electrometer and voltmeter?
Electrometer
Definition:
(n.) An instrument for measuring the quantity or intensity of electricity; also, sometimes, and less properly, applied to an instrument which indicates the presence of electricity (usually called an electroscope).
Example Sentences:
(1) The response of the hexose monophosphate shunt in erythrocytes was studied with the ionization chamber-electrometer apparatus to measure continuously 14CO2 derived from 14C-labeled substrates.
(2) System (chamber plus electrometer) factors as provided by three of the five ADCLs had a maximum discrepancy of 1.51%.
(3) The influence of doping material, doping level, various effects of radiation damage, mechanical construction, detector size, statistical noise and connection to the electrometer is discussed.
(4) The mechanism of this electrometer is based upon the relationship between the red cell content and the electrical conductivity of the blood.
(5) The remaining charge on the electret is read by an electrometer, through further irradiation.
(6) The system may be rapidly and easily constructed using a standard recording pH electrometer and a commercially available Pco2 electrode.
(7) A vibrating reed electrometer and current digitiser were used to measure the current produced by completely stopping the alpha particles in a large cylindrical ionisation chamber.
(8) One of the principal concerns of a physicist responsible for calibrating megavoltage radiotherapy equipment is the validity and stability of the 60Co exposure correction factor assigned to his ionization-chamber and electrometer system.
(9) Photoinduced generation of electric current by bacteriorhodopsin, incorporated into the planar phospholipid membrane, has been directly measured with conventional electrometer techniques.
(10) The PC monolayer was formedon 145 mM KCL in a teflon trough and the surface change was measured by means of a Kiethley electrometer, with the high impedence output connected to an Americium 241 air electrode and the low impedence output to a calomel reference electrode.
(11) The rate of HMPS activity was measured by the production of radioactive CO2 from 14C-1-glucose or 14C-1-ribose using a vibrating reed electrometer and ionization chamber.
(12) These exposure measurements then were repeated with various ionization chamber systems, including two Victoreen R meters (25- and 100-R chambers), a Capintec 192 dosimeter with a Farmer 0.6-cm3 probe, a PTW transit dose probe, and an EG and G IC-18 probe with a Keithley 610-B electrometer.
(13) In the recently published AAPM protocol for the dosimetry of high-energy photons and electrons, the response of an ionization chamber is defined as the dose to the gas in the chamber per unit electrometer reading, Ngas.
(14) The reported electrometer factor had a maximum discrepancy of only 0.50%.
(15) Using a sensitive electrometer and recording instrument, the subsequent change in hydrogen ion concentration is recorded as a function of time.
(16) A simple box of electronics, incorporating an integrated ratio circuit and 13 integrated circuit comparators, interfaces the electrometers to the scanner's printing mechanism.
(17) The chamber and electrometer calibration factor provided by each of the five ADCLs were analyzed for consistency.
(19) A system of regional facilities has been developed for radiation protection calibrations; each facility is supplied with a set of 137Cs sources and an ionization chamber and electrometer for use with x-rays.
(20) Eight years of data have been analyzed for two ion chambers (and their associated electrometers) irradiated at fixed geometry in such a device.
Voltmeter
Definition:
(n.) An instrument for measuring in volts the differences of potential between different points of an electrical circuit.
Example Sentences:
(1) Of greatest importance, however, is the fact that the voltmeter can serve as a monitoring device which will indicate when the potassium should be administered in order to render the heart both mechanically and electrically arrested.
(2) Measurement instrumentation, consisting of a differential transformer coupled to an oscillator and digital voltmeter was sensitive to the travel of a probe from the gingival surface to tooth surface or alveolar bone.
(3) The output of the paramagnetic meter was measured both by a digital voltmeter and by a chart recorded and the carbon dioxide concentrations calculated from these observations (Y1% and Y2% respectively) were compared with those obtained by Lloyd-Haldane (x%) gas analysis, for carbon dioxide concentration of 2-20% in a range of oxygen concentrations of about 9-90%.
(4) These two rates are electronically displayed on two three-digit voltmeters, the first display being the total activity, the second a number proportional to the inhibited slope.
(5) We have modified our Couette viscometer, adding a computer-controlled stepping motor and a second digital voltmeter.
(6) Dark adaptation and spectral sensitivity functions were measured for ERG criteria using a vector voltmeter.
(7) This voltmeter has been tested using the initial measurement system as reference and produces the same information concerning the small signal electrical activity (i.e.
(8) The design and implementation of high performance differential voltmeters for semi-parallel data acquisition are described.
(9) The circuit can drive a standard pen recorder and digital voltmeter, resulting in rapid and accurate measurements.
(10) Electrical activity was recorded on electromagnetic tape and intramyocardial voltage was monitored with an inline voltmeter.
(11) A specific implementation of the voltmeters, with separate DC supplies and independent signal references, is described.
(12) The electric potential difference was registered by three independent methods: by transmembrane electrophoresis of penetrating anions PCB-, by direct measurement with using voltmeter in system "proteoliposome--planar membrane" and electrochromic absorption band shifts of bacteriochlorophyll.
(13) Valves connected to the cylinders are sequentially activated by a motor driven shaft provided with cams, which also activates a microswitch connected to a digital voltmeter.
(14) Because this voltmeter is battery powered and is, therefore, completely isolated from all electrical equipment in the operating theatre, it can be used to monitor the presence, or absence, of microfibrillation in the human heart.
(15) To this end, penetrating anion probe and direct voltmeter measurement of electric potential across phospholipid membrane were used.
(16) Light-dependent electric responses of the proteoliposomes were detected using (a) phenyldicarbaundecarborane anion (PCB-) probe and (b) direct measurement by a voltmeter in the proteoliposome-planar phospholipid membrane system.
(17) Visual-evoked potential (VEP) data were obtained by parallel analog (vector voltmeter) techniques from scalp electrodes in response to high luminance counterphasing sine wave gratings.
(18) Using a digital electron voltmeter, bioelectrical potentials (BEPs) of dental crowns have been recorded in 180 patients, 36 dogs, and 93 white non-inbred rats.
(19) This observation confirms that the signal-to-noise ratio is much better with the vector voltmeter technique than with the averaging technique.
(20) The design is based on the precise transduction of the angular position of the compensator's Vernier dial to an easily visible red-illuminated display on a digital voltmeter.