A measurement device includes a probe having a first conductive surface, a second conductive surface, and an insulating layer. The second conductive surface is opposite the first conductive surface and fixed relative to the first conductive surface. The insulating layer is positioned between the first conductive surface and second conductive surface and electrically insulates the first conductive surface from the second conductive surface.

A measurement device includes a probe having a first conductive surface, a second conductive surface, and an insulating layer. The second conductive surface is opposite the first conductive surface and fixed relative to the first conductive surface. The insulating layer is positioned between the first conductive surface and second conductive surface and electrically insulates the first conductive surface from the second conductive surface.

A device for implementing a high-temperature plane strain compression test on a thermal simulation tester is provided. High-hardness and special-shaped pressure heads are located at the upper and lower ends of a sample; side shim plates and end shim plates with insulation and high pressure resistance are respectively located in grooves in the end faces and the inner sides of high-strength fixed plates, and the combined fixed plates are respectively located on the left and right sides of the sample; and the combined fixed plates are fixed via four through holes of the fixed plates by high-strength bolts, washers and nuts to limit the plane strain problem caused by the deformation of the sample in the normal direction of the fixed plates.

A measurement device includes a probe having a first conductive surface, a second conductive surface, and an insulating layer. The second conductive surface is opposite the first conductive surface and fixed relative to the first conductive surface. The insulating layer is positioned between the first conductive surface and second conductive surface and electrically insulates the first conductive surface from the second conductive surface.

A measurement device includes a probe having a first conductive surface, a second conductive surface, and an insulating layer. The second conductive surface is opposite the first conductive surface and fixed relative to the first conductive surface. The insulating layer is positioned between the first conductive surface and second conductive surface and electrically insulates the first conductive surface from the second conductive surface.

A torque adapter for measuring a stall torque supplied by a rotary power source includes a housing, a mandrel rotatable relative to the housing, and a resistance subassembly. The housing includes an arcuate recess defined at least partially by a recess front wall a recess back wall. The arcuate recess includes a first rotational zone bounded on one side by the recess front wall, and a second rotational zone bounded on an opposite side by the recess back wall. The mandrel includes a flange portion having an arcuate protrusion received in the arcuate recess. The resistance subassembly includes a biasing member and is received into the arcuate recess. When the mandrel is rotated relative to the housing, the mandrel encounters nominal rotational resistance while the arcuate protrusion passes through the first rotational zone, and the mandrel encounters increasing rotational resistance while the arcuate protrusion passes through the second rotational zone.

A torque adapter for measuring a stall torque supplied by a rotary power source includes a housing, a mandrel rotatable relative to the housing, and a resistance subassembly. The housing includes an arcuate recess defined at least partially by a recess front wall a recess back wall. The arcuate recess includes a first rotational zone bounded on one side by the recess front wall, and a second rotational zone bounded on an opposite side by the recess back wall. The mandrel includes a flange portion having an arcuate protrusion received in the arcuate recess. The resistance subassembly includes a biasing member and is received into the arcuate recess. When the mandrel is rotated relative to the housing, the mandrel encounters nominal rotational resistance while the arcuate protrusion passes through the first rotational zone, and the mandrel encounters increasing rotational resistance while the arcuate protrusion passes through the second rotational zone.

A system for reproducing a dry friction torque applied to an actuator on a valve of a hydraulic line including a disc coupled to a power transmission shaft; a disc brake including a caliper mounted on a frame and plates adapted to be put into contact with the disc; and an electric actuator configured to control the force of application of the plates onto the disc so as to apply a controlled resistive torque to the power transmission shaft, is provided.

A system for reproducing a dry friction torque applied to an actuator on a valve of a hydraulic line including a disc coupled to a power transmission shaft; a disc brake including a caliper mounted on a frame and plates adapted to be put into contact with the disc; and an electric actuator configured to control the force of application of the plates onto the disc so as to apply a controlled resistive torque to the power transmission shaft, is provided.

A Prony brake used as a rotational load absorption unit, or dynamometer, to measure power output of a prime mover includes a cylindrical tube disposed within a sealed tank containing coolant water. Disposed within the cylindrical tube is a fixed stator shaft, which is attached to the center of a stator plate having its outer periphery disposed in closely spaced relation to the tube's inner surface, with the stator shaft further coupled to a hydraulic control system. Disposed within the stator plate's outer periphery are plural radially spaced pistons for applying a radially outward friction braking force to the inner surface of the rotating cylindrical tube. The stator shaft is provided with first and second ports and passageways for respectively transporting hydraulic control fluid and lubrication fluid. Also included is a supplemental cooling water supply wherein cooling water is circulated with the Prony brake by the rotating cylindrical tube.