Transducer comprising a diaphragm for use with hydrogen-containing fluid media

Patent number: 12601649

Abstract: A transducer for determining a pressure of a hydrogen-containing fluid medium confined in a first space includes a pressure side end configured to be disposed facing the fluid medium. The transducer includes a housing, which defines a second space, and a measuring arrangement disposed in the second space. The pressure side end includes a diaphragm configured and disposed for hermetically separating the first space from the second space. The diaphragm includes a metallic material that is made of a high-alloy martensite.

Type: Grant

Filed: December 19, 2022

Date of Patent: April 14, 2026

DIAPHRAGM FOR USE WITH HYDROGEN-CONTAINING FLUID MEDIA AND TRANSDUCER COMPRISING SUCH A DIAPHRAGM

Publication number: 20250052634

Abstract: A diaphragm for hermetically separating a first space accommodating a hydrogen-containing fluid medium from a second space. The diaphragm includes a metallic material and a coating that has properties effecting a reduction of the permeability for molecular and/or atomic hydrogen. The coating is arranged between the metallic material of the diaphragm and the fluid medium at least in an area that shields the metallic material from coming into contact with the fluid medium when the diaphragm is in use. The coating includes at least one non-stoichiometric oxide, carbide or nitride.

Type: Application

Filed: November 9, 2022

Publication date: February 13, 2025

PRESSURE SENSOR, SYSTEM FOR MOUNTING AND DEMOUNTING OF THE PRESSURE SENSOR AND USE OF THE PRESSURE SENSOR

Publication number: 20240192073

Abstract: A pressure sensor for measuring the pressure of a fluid medium includes a mounting device, a sensor device and a sealing element. The mounting device holds the sensor device and is mountable in a mounting bore of a wall. The sensor device includes a diaphragm and a sensor element, which generates a measurement signal for a pressure-dependent deformation of the diaphragm. The sealing element seals the mounting bore and includes a trunnion held by a socket of the sensor device.

Type: Application

Filed: December 5, 2023

Publication date: June 13, 2024

Joint, electrical feedthrough, and sensor

Patent number: 11783971 Abstract: A joint joins an alloy member to a ceramic member via a glass joining agent, which is joined to the alloy member by a material bonded joint and to the ceramic member by a further material bonded joint. The glass joining agent is made of a glass having a melting point below 800° C.; a coefficient of thermal expansion of at least 9-10?6 K?1 and a bismuth content of at least 10%. The alloy member has a coefficient of thermal expansion of at least 9-10?6 K?1. The ceramic member has a maximum coefficient of thermal expansion of 8-10?6 K?1. The material bonded joint defines a mixing region that is a partial region of the ceramic member, and the bismuth content in the mixing region is higher than that of the ceramic member outside the mixing region.

Type: Grant

Filed: January 6, 2022

Date of Patent: October 10, 2023

Strain transmitter

Patent number: 9689757 Abstract: A strain transmitter for detecting strain of a structure includes a strain body, which has a strain axis with fastening devices for fastening the strain body on a structure, and a measurement element, which is arranged centrally between the fastening devices on the strain axis. The measurement element includes a metal sheet. The entire surface of a statically measuring, piezo-resistant silicon chip, which is connected to a full bridge and emits a voltage in the strained state proportional to the level of strain, is applied to the metal sheet. The measurement element includes a printed circuit board, and electric contacts are guided from the silicon chip along the printed circuit board.

Type: Grant

Filed: September 27, 2013

Date of Patent: June 27, 2017

Coupling for a plastics injection molding machine

Patent number: 7866971 Abstract: A coupling for a plastics injection molding machine which connects a drive shaft to a screw comprises at least one force sensor with a measuring element for the indirect determination of the nozzle pressure. The coupling comprises a first connection which has torsional strength and does not transfer axial force. The coupling comprises a second connection, which is mechanically uncoupled from the first connection and is compression proof and does not transfer torque between the drive shaft and the feed screw. The measuring element is arranged in the force path A of the second compression proof connection but is not also in the force path T of the first connection. Thus, during operation, measurements in the measuring element are not falsified by torsional forces. Type: Grant Filed: December 12, 2007 Date of Patent: January 11, 2011