Abstract: A method and apparatus is disclosed for measuring electrical properties of objects by the transmission of electromagnetic waves through a non-magnetizable material. The disclosure also describes a method of measuring changes in electromagnetic signals as the amplitude and frequency of the electromagnetic waves is varied to determine the thickness of an object.

Abstract: An apparatus and method for measuring changes in pressure, temperature, speed, acceleration, vibration, or volume by detecting variations in one or more electrical circuits as the distance among a plurality of electrically conductive and magnetically permeable components changes. The invention utilizes changes in properties of electrical circuits induced by the variations in the intensity of a magnetic flux field resulting from spatial movements or displacement of the components. The components that make up the sensor may be electrically insulated from the electrical circuit that is the source of the magnetic flux field and detects the change and analyzes it as a measured change in pressure, temperature, speed, acceleration, vibration, volume, etc.

Abstract: A method for creating a full or partial transparency in a material comprising the steps of creating a first electromagnetic wave adjacent to the material, saturating the material with the first electromagnetic wave, creating a second electromagnetic wave having a frequency higher than the first electromagnetic wave, engaging the second electromagnetic wave with the material when the material is saturated for creating a transparency in the material with respect to the electromagnetic waves. An apparatus for creating a transparency in a material comprising a large coil, a small coil, a switch, a low noise amplifier (LNA), a receiver, a frequency generator, a pulsar, at least one or more capacitors and a power source.

Abstract: The invention subject of this specification utilizes the technique of inductive magnetic coupling of Electromagnetic waves to EM barrier materials in combination with transmission of Electromagnetic waves through non-permeable material to facilitate the measurement of resistivity of geologic formation beyond the well casing.

Abstract: The invention subject of this invention pertains to device and methods for transmitting electromagnetic signals into or through magnetically permeable and electrically conductive materials. The invention also teaches the method and apparatus for receiving a return signal from or through the material, thereby permitting information to be collected on matter on the opposite side of the material. The subject invention teaches various techniques for creating EM wave transparencies in materials such as carbon steel and iron. The invention further teaches methods and apparatus for varying, in a controlled manner, the size of the transparency, the creation of multiple transparencies, the sequential opening and closing of the transparencies, utilization of one or more transmitting and receiving devices, each of which may be located at its own transparent opening.

Abstract: A method is provided for creating a spectral EM frequency to calculate the thickness of a material with unknown permeability and conductivity using metallic transparencies. The method comprises the steps of testing empirically to approximate the conductivity, testing empirically to approximate the permeability, creating a first set of electromagnetic waves adjacent to the material to be measured of a relatively low frequency, impinging the first set of electromagnetic waves on the material for saturating the material, creating a second set of electromagnetic waves having specific constant amplitude of a higher frequency than the first set of electromagnetic waves, the second set of electromagnetic waves for engaging the material and generating a sensing signal having modified characteristics, and receiving the sensing signal through the saturated material such that the modified characteristics of the sensing signal are processed to determine the thickness of the material.

Abstract: A method and apparatus for measuring changes in the media within a geologic formation by transmitting magnetic flux through a section of ferromagnetic well casing and measuring the change in flux received back through the casing. The flux transmitter and receiving components may be permanently installed in a hydrocarbon production well.