Monitoring fluid condition through an aperture

Details Monitoring fluid condition through an aperture Monitoring fluid condition through an aperture

G - Physics

01

N

G01N 27/02 (2006.01) G01N 27/06 (2006.01) G01N 27/07 (2006.01) G01N 27/22 (2006.01) G01N 33/28 (2006.01)

Patent

CA 2324843

A method for real time monitoring fluid in a vessel with a probe having a pair of electrodes immersed in the fluid. The disclosed probe has the electrodes arranged helically on a rod, sized and configured for insertion in an engine dipstick hole. Preferably, the probe has spiral electrode winding up regions different pitch to provide improved impedance response at fractional Hertzian and Hertzian frequencies of excitation. In one version with alternating voltage the difference in current magnitude measured at the fraction Hertzian and Hertzian frequencies compared with stored known values for known fluid conditions and an electrical signal indicative of fluid condition is generated. Examples with engine drain oil and heavy duty transmission lubricant fluid are presented. The impedance properties measured can determine the percentage remaining useful life (RUL) of the fluid. In another version of the method the current phase shift angle is measured at the fractional Hertzian frequency; and, from known values of current phase shift angle of the fluid, at various conditions, the condition of the fluid determined. The differential current measured and the measured phase shift angle may be combined, for example, by the square of the sum of the squares procedure to provide an enhanced impedance change indicator.

Affiliated with

Also associated with

Rating

Monitoring fluid condition through an aperture does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Monitoring fluid condition through an aperture, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Monitoring fluid condition through an aperture will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFCA-PAI-O-1758644