oscillograph


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Related to oscillograph: magnetic oscillograph

oscillograph

[ə′sil·ə‚graf]
(engineering)
A measurement device for determining waveform by recording the instantaneous values of a quantity such as voltage as a function of time.
References in periodicals archive ?
The static and dynamic moduli, the hysteresis losses and the logarithmic decrement were measured on a Yerzley mechanical oscillograph AYO-IV in accordance with ASTM D-945.
The frequencies [f.sub.C1] and /[C.sub.2] of the bandpass filters and the resonance frequency [f.sub.0] were measured in the oscillograph and then the quality factor of the filters was calculated.
The baseline tension of isolated tracheal tissue was maintained at 1 gram through out the experiment which was optimal for measuring the changes in the resting tension of tracheal muscles through Isometric Force Displacement Transducer on Four Channel Oscillograph Harvard Model No 50-930712.
The tracheal strip was attached to the hook of oxygen tube of tissue bath containing oxygenated krebs-Henseleit solution at 37C.9 Tracheal contractions were recorded with Research Grade Isometric Force Displacement Transducer (Harvard Model No 72-4494) on four-channel oscillograph (Harvard Model No 50-9307).10
Cardiac stomach movement was recorded using a Harvard isotonic transducer (0.5 g load) linked to a Harvard twin-channel Universal oscillograph. A range of gain settings on the oscillograph were used depending on the responsiveness of the preparation.
If the total power required is transmitted through gears of any sort, the gears introduce so much noise in oscillograph images from accelerometers that the oscillographs are difficult to interpret.
For example, when a scientist defines sound as the "alternation in pressure, stress, particle displacement, or particle velocity, which is propagated in an elastic material, or the superposition of such propagated vibrations,"(73) and then proceeds to measure frequency and wavelength, he or she reduces one cue of the vibratory ambience to a static state, for the sake of observation, forgetting that an auditory quality is a dimensionless and transient cue of energy dissipation.(74) While a tone, for example, can be visualized by an oscillograph or an electronic oscilloscope, the image is not an akoumenon because such an electronic reproduction does not capture the original expression of energy exchange, that is, it cannot reproduce the original and unique cue of that particular tone.
Machines such as the oscillograph are used by modern acoustic linguists to catch even slightly varying degrees of stress.
The amplified output from the strain gauge was recorded by a rapid response oscillograph. A maximal effort was maintained until the assessor was satisfied that the force produced was no longer increasing (usually 2-4 s).
During the 1920s he devised a system of electrodes that, when applied to the skull and connected to an oscillograph, would give a recording of the rhythmic shifting of electric potentials commonly called brain waves.
1), the compounding department should develop suitable formulations, produce test samples and test on an AYO-IV Yerzley mechanical oscillograph (ref.
The ultrasonic oscillograph records are presented in Figure 10.