Jet wash for ultrasonic streaming current detector

A method of jet washing of an ultrasonic streaming current detector, comprising the following steps:

• a. providing a cross-shaped tubular member having cross-member and longitudinal elements communicating with each other and further with a test fluid containing charge influencing species;
• b. providing a piston receiving member mounted coaxially with said longitudinal element;
• c. providing a casing substantially surrounding said piston receiving member;
• d. providing a pair of electrodes, the first of which is disclosed adjacent to a bottom end of said piston receiving member and the second of which is disposed in said piston receiving member above the first electrode;
• e. providing a reciprocating element mounted in the central bore of said piston receiving member;
• f. providing means for reciprocating said reciprocating element within the bore of said piston receiving member, so as to cause a continuous repetitive flow of said test fluid to and from said bore to thereby generate electrical signals across said electrodes;
• g. providing a means for amplifying said electrical signals generated across said electrodes, and means for utilizing said amplified signals;
• h. providing means for conducting said electrical signals generated across said electrodes from said electrodes to said means for amplifying said electrical signals and said means for utilizing said amplified signals;
• i. providing means for synchronizing said conduction of said electrical signals with the action of said reciprocating element;
• j. providing an ultrasonic cleaning device disposed adjacent to said piston receiving member and said casing for generating mechanical vibrations to prevent an agglomeration of said charge influencing species contained by said test fluid in the area about said electrodes;
• k. providing the jet wash apparatus with a connector receptacle connected in fluid communication with the bottom of said longitudinal element of said cross-shaped tubular member;
• with a cleaning fluid inlet means connector in fluid communication to the bottom of said connector receptacle, said cleaning fluid inlet means having an adjustable valve;
• with a conduit connected in fluid communication at its bottom end to said cleaning fluid inlet means and fluidly communicating with said piston receiving member at its top end;
• 1. injecting a stream of said cleaning fluid through said cleaning fluid inlet;
• m. adjusting the flow rate of said stream of cleaning fluid by means of adjusting said adjustable valve;
• n. introducing said stream of cleaning fluid through said conduit and through said dielectric cap, thereby causing said cleaning fluid to be forcibly injected against said piston receiving member, said reciprocating element, and said casing, inter alia, thereby causing any undesirable charged particulate buildup thereon to be forcibly expelled through said apertures provided diametically opposite each other through said casing, and therethrough said reservoir of said cross-member element and through said egree means, thereby ensuring the generation of accurate results of said ultrasonic streaming current detector.