571. Capacitance Sensing for Weight Engineering
|Title||571. Capacitance Sensing for Weight Engineering|
|Publication Type||Conference Paper|
|Year of Publication||1966|
|Authors||Perkins, C. K., and Huber D. G.|
|Conference||25th Annual Conference, San Diego, California, May 2-5|
|Conference Location||San Diego, California|
|Publisher||Society of Allied Weight Engineers, Inc.|
In a typical load cell application, mass is not measured directly, but rather through a series such as: mass - weight - stress - strain - ΔR - Δi - etc. Similarly, we can measure mass with a capacitance device through the series: mass - volume and dielectric constant - ΔC - Δi - etc. Both measurements require calibration and, indeed, this calibration can be identical in concept. That is, mass can be added incrementally while recording the output.
This paper presents a survey of the ways in which capacitance measurements may be employed in weight engineering - specifically measurements of density, level, and mass. Only liquid measurements will be discussed here, although any fluid and, in special cases, solids, may be treated similarly.
|Key Words||04. Electrical Transducers|
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