Abstract: An article comprising: a planar base having a first surface and an opposing second surface and an outer peripheral edge, wherein the second surface includes an area comprising a plurality of protuberances and configured to attach and maintain orientation of a frozen tissue specimen block; and a removable lid having a first side and a second side, wherein the first side defines a continuous planar surface and the second side defines a recessed portion configured to cover a frozen tissue specimen block and an outer rim configured to engage with the outer peripheral edge of the base, wherein the outer rim does not form part of the recessed portion, wherein the area of the base and the recessed portion of the lid are aligned.

Abstract: The present technology relates to a current sensing device utilizing a magnetic flux concentrator loop composed of segmented ferromagnetic components. The concentrator loop is designed to focus magnetic flux generated by a current carrying cable, wire, or conductor along the Faraday rotation axis of a magneto-optic sub-assembly. The segmented magnetic flux concentrator encompassing the current carrying cable is held close to a circumferential geometry about the cable, in order to maximize magnetic flux concentration on the magneto-optic sensor. The segmented design of the magnetic flux concentrator loop, combined with a clamping mechanism, allows for easy, straightforward attachment and detachment, during installation and removal or the current sensing device from the current carrying cable.

Abstract: An optical voltage sensor assembly includes an input fiber-optic collimator positioned and configured to collimate input light beam from a light source. A crystal material is positioned to receive the input light beam from the light source and configured to exhibit the Pockels effect when an electric field is applied through the crystal material. An output fiber-optic collimator is positioned to receive an output light beam from the crystal material and configured to focus the output light beam from the crystal onto a detector. Methods of using the optical voltage sensor assembly are also disclosed.

Abstract: The present technology relates to a current sensing device utilizing a magnetic flux concentrator loop composed of segmented ferromagnetic components. The concentrator loop is designed to focus magnetic flux generated by a current carrying cable, wire, or conductor along the Faraday rotation axis of a magneto-optic sub-assembly. The segmented magnetic flux concentrator encompassing the current carrying cable is held close to a circumferential geometry about the cable, in order to maximize magnetic flux concentration on the magneto-optic sensor. The segmented design of the magnetic flux concentrator loop, combined with a clamping mechanism, allows for easy, straightforward attachment and detachment, during installation and removal or the current sensing device from the current carrying cable.

Abstract: One aspect of the present technology relates to a safety cable vibration monitoring system. The system includes a vibration sensor configured to be coupled to a safety cable. A vibration monitoring computing device is coupled to the vibration sensor. The vibration monitoring computing device includes a processor and a memory coupled to the processor which is configured to execute one or more programmed instructions comprising and stored in the memory to receive data from the vibration sensor. An occurrence of a fall event related to use of the safety cable is determined based on the received data from the vibration sensor. A method of monitoring a safety cable and a safety cable monitoring network are also disclosed.

Abstract: An article comprising: a planar base having a first surface and an opposing second surface and an outer peripheral edge, wherein the second surface includes an area comprising a plurality of protuberances and configured to attach and maintain orientation of a frozen tissue specimen block; and a removable lid having a first side and a second side, wherein the first side defines a continuous planar surface and the second side defines a recessed portion configured to cover a frozen tissue specimen block and an outer rim configured to engage with the outer peripheral edge of the base, wherein the outer rim does not form part of the recessed portion, wherein the area of the base and the recessed portion of the lid are aligned.

Abstract: One aspect of the present technology relates to an optical electric field sensor device. The device includes a non-conductive housing configured to be located proximate to an electric field. A voltage sensor assembly is positioned within the housing and includes a crystal material positioned to receive an input light beam from a first light source through a first optical fiber. The crystal material is configured to exhibit a Pockels effect when an electric field is applied when the housing is located proximate to the electric field to provide an output light beam to a detector through a second optical fiber. An optical cable is coupled to the housing and configured to house at least a portion of the first optical fiber and the second optical fiber. The first light source and the detector are located remotely from the housing. A method of detecting an electric field is also disclosed.

Abstract: An optical voltage sensor assembly includes an input fiber-optic collimator positioned and configured to collimate input light beam from a light source. A crystal material is positioned to receive the input light beam from the light source and configured to exhibit the Pockels effect when an electric field is applied through the crystal material. An output fiber-optic collimator is positioned to receive an output light beam from the crystal material and configured to focus the output light beam from the crystal onto a detector. Methods of using the optical voltage sensor assembly are also disclosed.

Abstract: An optical voltage sensor assembly includes an input fiber-optic collimator positioned and configured to collimate input light beam from a light source. A crystal material is positioned to receive the input light beam from the light source and configured to exhibit the Pockels effect when an electric field is applied through the crystal material. An output fiber-optic collimator is positioned to receive an output light beam from the crystal material and configured to focus the output light beam from the crystal onto a detector. Methods of using the optical voltage sensor assembly are also disclosed.

Abstract: An optical voltage sensor assembly includes an input fiber-optic collimator positioned and configured to collimate input light beam from a light source. A crystal material is positioned to receive the input light beam from the light source and configured to exhibit the Pockels effect when an electric field is applied through the crystal material. An output fiber-optic collimator is positioned to receive an output light beam from the crystal material and configured to focus the output light beam from the crystal onto a detector. Methods of using the optical voltage sensor assembly are also disclosed.

Abstract: An opto-electronic telemetry device includes a housing having an analog optical conversion device located therein. The analog optical conversion device is configured to convert an optical signal to a digital facsimile. A sensor cable is coupled to the analog optical conversion device within the housing and at least one optical sensor located external to the housing. The sensor cable receives the optical signal from the at least one optical sensor and provides the optical signal to the analog optical conversion device. A method of making a modular opto-electronic telemetry device is also disclosed.

Abstract: An optical voltage sensor assembly includes an input fiber-optic collimator positioned and configured to collimate input light beam from a light source. A crystal material is positioned to receive the input light beam from the light source and configured to exhibit the Pockels effect when an electric field is applied through the crystal material. An output fiber-optic collimator is positioned to receive an output light beam from the crystal material and configured to focus the output light beam from the crystal onto a detector. Methods of using the optical voltage sensor assembly are also disclosed.

Abstract: A wind turbine condition monitoring system includes a light source configured to produce an emitted light beam and a plurality of optical sensors configured to be positioned on a wind turbine to receive the emitted light beam from the light source. The optical sensors are configured to generate one or more product light beams from the emitted light beam. A detector is positioned to receive the product light beams generated from the optical sensors and is configured to measure intensity values of the product light beams for the optical sensors. A computing device is coupled to the detector and includes a processor and a memory coupled to the processor. The processor executes programmed instructions stored in the memory to determine, based on the intensity values for the product light beams for the optical sensors, at least a displacement value, a current value, and a voltage value for the wind turbine.

Abstract: The present invention relates to a system comprising a light source configured to produce an emitted light beam. An etalon is positioned to receive the light beam and is configured to generate a plurality of product light beams. The etalon is mounted to a support structure at one or more pivot points. A detector is positioned to receive and configured to measure intensity values for the product light beams. A computing device is coupled to the detector. The computing device includes a processor and a memory coupled to the processor so that the processor executes programmed instructions stored in the memory to determine, based on the measured intensity values, a change in position of the etalon relative to the one or more pivot points. Also disclosed are methods for measuring the vibration and monitoring the condition of an object utilizing the system.

Abstract: A power transmission tower condition monitoring system includes a plurality of sensors configured to be positioned at a plurality of separate locations on the power transmission tower. The plurality of sensors includes at least one tilt sensor, at least one shock sensor, and at least one vibration sensor. One or more detectors are configured to receive intensity value data from the plurality of sensors. A computing device is coupled to the one or more detectors and includes a processor and a memory coupled to the processor. The processor executes programmed instructions stored in the memory to receive the intensity value data from the one or more detectors. A current operational health for the power transmission tower is determined based on the received intensity value data. A method for monitoring a condition of a power transmission tower using the power transmission tower condition monitoring system is also disclosed.

Abstract: One aspect of the present technology relates to an optical electric field sensor device. The device includes a non-conductive housing configured to be located proximate to an electric field. A voltage sensor assembly is positioned within the housing and includes a crystal material positioned to receive an input light beam from a first light source through a first optical fiber. The crystal material is configured to exhibit a Pockels effect when an electric field is applied when the housing is located proximate to the electric field to provide an output light beam to a detector through a second optical fiber. An optical cable is coupled to the housing and configured to house at least a portion of the first optical fiber and the second optical fiber. The first light source and the detector are located remotely from the housing. A method of detecting an electric field is also disclosed.

Abstract: The present technology relates a transformer condition monitoring system including a light source configured to produce an emitted light beam. A plurality of optical sensors are configured to be positioned at a plurality of separate locations on a transformer, receive the light beam from the light source, and generate product light beams from the emitted light beam. A detector is positioned to receive the product light beams from the optical sensors and is configured to measure intensity values of the product light beams for each of the optical sensors. A computing device is coupled to the detector and includes a processor coupled to a memory. The processor executes programmed instructions stored in the memory to determine, based on the measured intensity values for the product light beams for the optical sensors, at least a displacement value, a current value, and a voltage value for the transformer.

Abstract: A wind turbine condition monitoring system includes a light source configured to produce an emitted light beam and a plurality of optical sensors configured to be positioned on a wind turbine to receive the emitted light beam from the light source. The optical sensors are configured to generate one or more product light beams from the emitted light beam. A detector is positioned to receive the product light beams generated from the optical sensors and is configured to measure intensity values of the product light beams for the optical sensors. A computing device is coupled to the detector and includes a processor and a memory coupled to the processor. The processor executes programmed instructions stored in the memory to determine, based on the intensity values for the product light beams for the optical sensors, at least a displacement value, a current value, and a voltage value for the wind turbine.

Abstract: An opto-electronic telemetry device includes a housing having an analog optical conversion device located therein. The analog optical conversion device is configured to convert an optical signal to a digital facsimile. A sensor cable is coupled to the analog optical conversion device within the housing and at least one optical sensor located external to the housing. The sensor cable receives the optical signal from the at least one optical sensor and provides the optical signal to the analog optical conversion device. A method of making a modular opto-electronic telemetry device is also disclosed.

Abstract: An optical sensor assembly that senses current in a secondary electrical cable while sensing voltage in a primary electrical cable. The optical sensor assembly may include a sensor body, a concentrator core for measuring current. The concentrator core may be attached to a first end of the sensor body. The optical sensor assembly may include a plurality of extension arms that extend from the sensor body. The extension arms may include clamping devices on one end that are configured to attach to a first electrical cable. The concentrator core may be configured to at least partially surround a second electrical cable and sense the current from that second electrical cable.