ELECTRICALLY ACTUATED EDDY CURRENT BRAKES

Brand	Owner	Address	Description
BAYLOR	NATIONAL OILWELL VARCO, L.P.	7909 Parkwood Circle Drive Houston TX 77036	Electrically Actuated Eddy Current Brakes; Electrical Switch Gear and Motor Controls and [Vessel Thruster and Propulsion Controls;] Power Conversion Systems-Namely, Switch Gear and Controls for Converting Constant Alternating Current Voltages to Variable Direct Current Voltages; [Oceanographic Data Gathering Instrumentation-Namely, Magnetic and Chart Recorders for Recording Temperature, Speed and Direction of Wind, Water and Vessel Motion; Electrical Wave Staff for Measuring Ocean Wave Heights; Electronic Load Cells for Monitoring Anchor Tension; and Ionic Water Detectors];
	Where the owner name is not linked, that owner no longer owns the brand

Technical Examples

A method for minimizing measuring spot size and noise during film thickness measurement is provided. The method initiates with locating a first eddy current sensor directed toward a first surface associated with a conductive film. The method includes locating a second eddy current sensor directed toward a second surface associated with the conductive film. The first and second eddy current sensors may share a common axis or be offset from each other. The method further includes alternating power supplied to the first eddy current sensor and the second eddy current sensor, such that the first eddy current sensor and the second eddy current sensor are powered one at a time. In one aspect of the invention, a delay time is incorporated between switching power between the first eddy current sensor and the second eddy current sensor. The method also includes calculating the film thickness measurement based on a combination of signals from the first eddy current sensor and the second eddy current sensor. An apparatus and a system are also provided.