A Shear Wave Rheology Sensor

F. Cohen-Tenoudji; W. J. Pardee; Bernhard R. Tittmann; Lloyd A. Ahlberg; Richard K. Elsley

doi:10.1109/T-UFFC.1987.26941

A Shear Wave Rheology Sensor

F. Cohen-Tenoudji, W. J. Pardee, Bernhard R. Tittmann, Lloyd A. Ahlberg, Richard K. Elsley

Engineering Science and Mechanics

Research output: Contribution to journal › Article › peer-review

12 Scopus citations

Abstract

A rheology sensor for monitoring the dynamic viscosity of a thermally curing resin is described. The complex shear modulus of the resin at 1 MHz is derived from the measured reflection coefficient of shear wave pulses at the resin surface. A special transducer-buffer assembly has been developed that operates at high temperature (T = 145°C) and provides a reference calibration signal. With this assembly, absolute determinations are made throughout the cure cycle of the real and imaginary components of the shear modulus. From the latter high-frequency dynamic viscosity is calculated. The results are compared with data obtained at low shear rates with a 10 Hz torque viscometer.

Original language	English (US)
Pages (from-to)	263-269
Number of pages	7
Journal	IEEE transactions on ultrasonics, ferroelectrics, and frequency control
Volume	34
Issue number	2
DOIs	https://doi.org/10.1109/T-UFFC.1987.26941
State	Published - Mar 1987

All Science Journal Classification (ASJC) codes

Instrumentation
Acoustics and Ultrasonics
Electrical and Electronic Engineering

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10.1109/T-UFFC.1987.26941

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title = "A Shear Wave Rheology Sensor",

abstract = "A rheology sensor for monitoring the dynamic viscosity of a thermally curing resin is described. The complex shear modulus of the resin at 1 MHz is derived from the measured reflection coefficient of shear wave pulses at the resin surface. A special transducer-buffer assembly has been developed that operates at high temperature (T = 145°C) and provides a reference calibration signal. With this assembly, absolute determinations are made throughout the cure cycle of the real and imaginary components of the shear modulus. From the latter high-frequency dynamic viscosity is calculated. The results are compared with data obtained at low shear rates with a 10 Hz torque viscometer.",

author = "F. Cohen-Tenoudji and Pardee, {W. J.} and Tittmann, {Bernhard R.} and Ahlberg, {Lloyd A.} and Elsley, {Richard K.}",

note = "Funding Information: Manuscript received July 11, 1986; revised October 3. 1986. This work was supported by the Rockwell International Science Center Independent Research and Development Program. The authors are with Rockwell International Science Center, 1049 Camino Dos Rios, Thousand Oaks, CA 91360. USA. IEEE Log Number 8612191.",

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AU - Cohen-Tenoudji, F.

AU - Pardee, W. J.

AU - Tittmann, Bernhard R.

AU - Ahlberg, Lloyd A.

AU - Elsley, Richard K.

N1 - Funding Information: Manuscript received July 11, 1986; revised October 3. 1986. This work was supported by the Rockwell International Science Center Independent Research and Development Program. The authors are with Rockwell International Science Center, 1049 Camino Dos Rios, Thousand Oaks, CA 91360. USA. IEEE Log Number 8612191.

PY - 1987/3

Y1 - 1987/3

N2 - A rheology sensor for monitoring the dynamic viscosity of a thermally curing resin is described. The complex shear modulus of the resin at 1 MHz is derived from the measured reflection coefficient of shear wave pulses at the resin surface. A special transducer-buffer assembly has been developed that operates at high temperature (T = 145°C) and provides a reference calibration signal. With this assembly, absolute determinations are made throughout the cure cycle of the real and imaginary components of the shear modulus. From the latter high-frequency dynamic viscosity is calculated. The results are compared with data obtained at low shear rates with a 10 Hz torque viscometer.

AB - A rheology sensor for monitoring the dynamic viscosity of a thermally curing resin is described. The complex shear modulus of the resin at 1 MHz is derived from the measured reflection coefficient of shear wave pulses at the resin surface. A special transducer-buffer assembly has been developed that operates at high temperature (T = 145°C) and provides a reference calibration signal. With this assembly, absolute determinations are made throughout the cure cycle of the real and imaginary components of the shear modulus. From the latter high-frequency dynamic viscosity is calculated. The results are compared with data obtained at low shear rates with a 10 Hz torque viscometer.

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A Shear Wave Rheology Sensor

Abstract

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