A transistorized control unit for accurate gas-pressure measurement with strain-gauge pressure transducers

Measures of lingual pressures which occurred during syllable utterances by 10 young adults were recorded superior and lingual to the left and right maxillary first molars and central incisors by strain gauge pressure transducers. These recordings were obtained during fast and slow utterance rates of selected consonant-vowel and vowel-consonant syllables. Measurement of these recordings showed: (1) mean peak lingual pressure varied depending upon the consonant and its position in the syllable; (2) peak pressures obtained from the molar region were less variable and generally greater than found in the central incisor region; (3) integrated time pressure values for entire syllables showed no appreciable difference at different transducer positions; and (4) greater integrated time pressure measures as well as greater variability was found for syllables repeated rapidly compared to slower utterances.

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Strain-gauge pressure transducers

Measurement Techniques ◽

10.1007/bf00812843 ◽

1974 ◽

Vol 17 (3) ◽

pp. 379-380

Author(s):

S. S. Chubrik ◽

S. P. Borshchevskii ◽

N. A. Rylov

Keyword(s):

Strain Gauge ◽

Pressure Transducers ◽

Gauge Pressure

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Spontaneous variations in venous tone in man

Journal of Applied Physiology ◽

10.1152/jappl.1960.15.2.255 ◽

1960 ◽

Vol 15 (2) ◽

pp. 255-257 ◽

Cited By ~ 2

Author(s):

Antonio C. Quiroz ◽

George E. Burch ◽

German E. Malaret

Keyword(s):

Heart Failure ◽

Congestive Heart Failure ◽

Strain Gauge ◽

Human Subjects ◽

Venous Pressure ◽

Venous Tone ◽

Pressure Transducers ◽

Gauge Pressure ◽

Venous Segment

Using the intact isolated venous segment technique, Statham strain-gauge pressure transducers and a multichannel direct recorder, spontaneous changes in venous tone were recorded in human subjects with and without congestive heart failure. Evidence was presented to show the existence of spontaneous variations in venous tone. Specific venous pressure deflections were described similar to, if not identical with, the alpha and beta deflections described in digital plethysmography. Venous pressure deflections associated with respiration and with transmitted arterial pulsations were also described. The effect of Cheyne-Stokes respiration on systemic venous pressure was observed fortuitously in one subject. It was noted that during sleep venous pressure usually decreased but occasionally increased. This increase is probably associated with dreams or other disturbances. Spontaneous venomotor changes were found equally in subjects with and those without congestive heart failure. Submitted on September 14, 1959

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