Liquid Film Thickness Measurements by Means of Internally Reflected Light 950002
The objective of this project is to establish the feasibility of measuring the thickness of a thin dynamic liquid film using internally reflected light. The principle of the sensor operation is demonstrated through static calibration curves. The influence of various liquids is also explored by testing water, motor oil, Stoddard fluid, and finally skim milk to show the effect of a semi-opaque liquid. The response of the system to 1.25 millisecond impulse of light caused by a 500 Hz square wave is examined to demonstrate the dynamic range of the device. A wave machine is used to demonstrate the dynamic response of the sensor. These measurements are made with the early version of the film thickness sensor.
Citation: Evers, L. and Jackson, K., "Liquid Film Thickness Measurements by Means of Internally Reflected Light," SAE Technical Paper 950002, 1995, https://doi.org/10.4271/950002. Download Citation
Author(s):
Lawrence W. Evers, Kenneth J. Jackson
Pages: 9
Event:
International Congress & Exposition
ISSN:
0148-7191
e-ISSN:
2688-3627
Also in:
Electronic Engine Controls 1995-SP-1082
Related Topics:
Sensors and actuators
Calibration
Water
SAE MOBILUS
Subscribers can view annotate, and download all of SAE's content.
Learn More »
