A thermally isolated sensor associated with a gas turbine engine includes a sensor probe configured to measure a temperature of a fluid associated with the gas turbine engine, and a base to be coupled to the gas turbine engine. The thermally isolated sensor includes a leading projection coupled to the base that extends into the fluid. The leading projection is configured to be heated by a heat source associated with the gas turbine engine. The thermally isolated sensor includes a trailing projection coupled to the base that extends into the fluid. The trailing projection is downstream from the leading projection. The trailing projection includes an inlet, and the sensor probe is disposed within the inlet and thermally isolated from the leading projection.

An isolation assembly for a boiler unit that incorporates a pressure relief valve and an automatic air vent to a valve body that includes a valve positioned adjacent to the automatic air vent. The unitary valve body reduces the number of components and leak paths and incorporates a ball valve to permit removing and/or securing the automatic air vent without having to purge the adjacent plumbing system.

An apparatus (20) for measuring internal gas pressure of a coke oven (31) including a guide (24) receiving at least three pressure probes (21,22,23) each connected to a pressure sensor (61,62,63), wherein, said guide (24) has a circular cross section then forming a tubular guide (24). method (70) for manufacturing the apparatus is also provided. A coke oven (31) including at least one hole (301) through which the above apparatus (20) is inserted horizontally such that a front part of each of the three pressure probes (21,22,23) is inside the coke oven (31) and a rear part of each of the three pressure probes (21,22,23) is outside the coke oven (31).

An alternating current AC to direct current DC converting circuit for a turbine generator is provided that comprises an active AC/DC converter having a controllable output voltage level having an input for receiving alternating current electrical power from a turbine generator and an output for providing direct current electrical power to an electrolysis system for electrolysis of water. The AC to DC converter further comprises an oscillator for generating an alternating current auxiliary signal and a summation circuit for adding the alternating current signal to the output of the active AC DC converter. By adding an AC component to the DC output of the active AC DC converter, electrolysis cells in the electrolysis module connected to the AC DC converting circuit have been proven to operate more efficiently. The amplitude of the alternating current auxiliary signal is preferably less than the output voltage of the active AC/DC converter.

A micro pressure sensor includes a body having a compartmentalized chamber provided by membranes anchored between opposing walls of the body and carrying electrodes disposed on surfaces of the membranes. The body has a first pair of opposing walls and a second pair of opposing walls orthogonal to the first pair that define a chamber, a plurality of membranes having a correspond electrode layer over a surface, the plurality of membranes disposed in the chamber, anchored between the first pair of opposing walls of the body to provide plural compartments, a first set of ports coupled to a first set of the plural compartments, the first set of ports disposed in corresponding portions of a first one of the first pair of opposing walls of the body, with a second one of the first pair of opposing walls of the body being a solid portion of the body; and a second set of ports coupled to a second different set of the plural compartments, the second set of ports disposed in corresponding portions of the second one of the first pair of opposing walls of the body, with the first one of the first pair of walls of the body being a solid portion of the body.

A micro pressure sensor includes a body having a compartmentalized chamber provided by membranes anchored between opposing walls of the body and carrying electrodes disposed on surfaces of the membranes. The body has a first pair of opposing walls and a second pair of opposing walls orthogonal to the first pair that define a chamber, a plurality of membranes having a correspond electrode layer over a surface, the plurality of membranes disposed in the chamber, anchored between the first pair of opposing walls of the body to provide plural compartments, a first set of ports coupled to a first set of the plural compartments, the first set of ports disposed in corresponding portions of a first one of the first pair of opposing walls of the body, with a second one of the first pair of opposing walls of the body being a solid portion of the body; and a second set of ports coupled to a second different set of the plural compartments, the second set of ports disposed in corresponding portions of the second one of the first pair of opposing walls of the body, with the first one of the first pair of walls of the body being a solid portion of the body.

The invention relates to a sample transfer device (10) for reception of a sample, having a transfer rod (4) that is configured for reception of a sample holder, the sample holder to be arranged in a chamber (1) of the sample transfer device (10) for the purpose of transferring the sample to a processing unit or analytical unit (200), at least one measurement device (3, 8) for measuring a physical variable being arranged inside the sample transfer device (10).

Provided is a pressure detection device including a pressure detection unit configured to detect a pressure to be transmitted to a pressure sensor, and a flow channel unit on which the pressure detection unit is disposed. The pressure detection unit) includes a pressure sensor and a conductive protective film disposed in contact with the pressure sensor, the conductive protective film breaking contact between the pressure sensor and a fluid. The conductive protective film is formed of a conductive fluororesin material including a fluororesin material and a conductive material dispersed in the fluororesin material and is connected to a ground portion maintained at a ground potential.

Various methods and systems are provided for a detecting surge of a turbocharger in an engine system. In one example, system includes a turbocharger including a compressor coupled to a turbine and a controller and sensor system configured to detect a surge event of the turbocharger based on at least one of a rate of change of a pressure measured by sensors downstream of the compressor and a measured rate of change of turbine speed, store operational data associated with the surge event in memory of the controller, and determine a performance of the turbocharger based at least in part on one or more of a cumulative number of detected surge events, a magnitude of detected surge events, or associated operational data.

The present disclosure provides a gas connection assembly for rapid draining of water heaters. The gas connection assembly includes a first channel having a gas inlet connection that connects to a gas supply source, a second channel having a gas outlet connection assembly configured to connect to a water heater, and a third channel coupled to a pressure regulator having a gas relief. The first, second, and third channels are connected such that a gas from the gas supply source comes through the first channel and distributes into the second channel and the third channel.