(n.) An instrument for measuring or comparing electrial potentials or electro-motive forces.
Example Sentences:
(1) The system involves computer analysis and graphic display of vectors created from rotational and linear potentiometers that are activated by listeners using a hand-held pointer as they track an acoustic event.
(2) Potentiometer settings offer variations in dosing schedules, distribution volumes as well as in absorption and elimination rate constants.
(3) By manipulation of two simple potentiometer controls, any temperature gradient between 0 and 50 C could be obtained.
(4) The lower strip (D, displacement of the handle) was moved in proportion to angular displacement of the handle by a potentiometer coupled to the handle axis.
(5) Subjects were asked to compensate this geometrical distortion by adjusting a potentiometer.
(6) The instrument is designed to adjust to trunk movement that might occur in the sagittal and coronal planes while transmitting the torque that results from rotation in the horizontal plane directly to the active potentiometer of the electrogoniometer.
(7) When there is a modification in frequency at the onset of the placing reaction relative to activity during the unloading reaction, the beginning of this change occurs after the onset of the movement as recorded by a potentiometer placed at the elbow joint.
(8) We present the design of an instrumentation biopotential amplifier that, (a) combines the ac coupling and high input impedance of an ac-coupled buffer with the CMRR of a simple differential amplifier or a monolithic instrumentation amplifier, (b) improves the CMRR by using a potentiometer without requiring either precision resistors or high-CMRR op amps, (c) illustrates how to calculate the CMRR for differential-input stages for either differential output or single-ended output.
(9) The device used to apply electrical current to the heart was constructed using a 9-volt battery, a push-button switch, and a 100-ohm potentiometer with calibrated dial.
(10) twisting of the forearms were transduced linearly by foam-cushioned clamps at the wrists and a potentiometer into a direct current of 0-2,7 V, respectively.
(11) The series resistance value, obtained very quickly by the method described, may be used in setting the compensation potentiometer to offset this resistance in voltage-clamp measurements.
(12) The course of the titration is followed potentiometrically with a glass and calomel electrode coupled and recorded automatically with a suitable registration potentiometer.
(13) Specifically, potentiometers and Hall effect sensors, capacitive force transducers, inductive displacement transducers (LVDTs), and various position resolvers are discussed.
(14) A potentiometer strapped to the knee recorded the angle of the joint, the output signal being displayed on an oscilloscope.
(15) By recording the rotation of the hinges using potentiometers, the position of the end-point of the palpator can be calculated.
(16) The translational scanning action is sensed by a position potentiometer and combines with the ultrasonic B-mode echoes to produce a cross-sectional image of the wall.
(17) By installing the two potentiometers on the pantographic arm and electrical switches, the position of the test target and the setting of the four levers which defines the size and the brightness of the test target were transferred directly to the computer.
(18) It includes a probe pack, a measuring pack and an automatic potentiometer.
(19) Continuous recording of excursion related to joint motion was obtained using a rotary potentiometer and an electrogoniometer.
(20) Two rating scales, a seven-stepped non-verbal scale on a Pain-Track logger, and a 100-mm VAS on a potentiometer, were found valid for continuous recording of itch.
Rheostat
Definition:
(n.) A contrivance for adjusting or regulating the strength of electrical currents, operating usually by the intercalation of resistance which can be varied at will.
Example Sentences:
(1) Defects in this control system are best conceptualized in cybernetic terms rather than in terms of the current rheostat models.
(2) Chicks, 8 days of age, were housed in a wind tunnel at temperatures from 12 to 28 C in increments of 4 C. The tunnel was equipped with a microswitch, an infrared bulb located above the switch, and a small electric fan controlled by a rheostat.
(3) We propose a "rheostat" mechanism, which suggests that bone perfusion may set limits for bone growth and remodeling.
(4) Since the orifice is in series with an approximately 10 K ohm resistance generated by a gel-filled capillary and a displacement rheostat, it floats electrically, at virtual ground.