A sensor having thermal stability at greater than 900° C., including a sensor body comprising an energy harvesting thermal electric generator, a heat sink in thermally conductive contact with the body, and a conductor electrically attached to the body, the conductor surrounded by a ceramic dielectric material. A borehole system including a borehole in a subsurface formation, a sensor disposed in the borehole.

A sensor having thermal stability at greater than 900° C., including a sensor body comprising an energy harvesting thermal electric generator, a heat sink in thermally conductive contact with the body, and a conductor electrically attached to the body, the conductor surrounded by a ceramic dielectric material. A borehole system including a borehole in a subsurface formation, a sensor disposed in the borehole.

A pressure measuring sensor having a ceramic pressure sensor includes a temperature transducer to provide a thermovoltage dependent on a temperature gradient. The temperature transducer includes two series-connected thermoelements, each of which has a galvanic contact between a wire of the thermoelement and a connecting conductor connecting the galvanic contacts of the two thermoelements to one another. The temperature transducer enables the compensation for a measuring error caused by a temperature gradient occurring along the pressure measuring sensor.

A pressure measuring sensor having a ceramic pressure sensor includes a temperature transducer to provide a thermovoltage dependent on a temperature gradient. The temperature transducer includes two series-connected thermoelements, each of which has a galvanic contact between a wire of the thermoelement and a connecting conductor connecting the galvanic contacts of the two thermoelements to one another. The temperature transducer enables the compensation for a measuring error caused by a temperature gradient occurring along the pressure measuring sensor.

The present disclosure provides an ammonia sensor and method of use. The sensor includes: at least one thermal indicator component independently selected from an electronic thermal sensor, an irreversible temperature indicator, and a heat-shrinkable film; an acid-functional porous sorbent in thermal contact with the at least one thermal indicator component; and an acid having a boiling point above 120° C. and a pKa of no greater than 2.5. The acid is impregnated in or covalently attached to the porous sorbent. The method includes: placing an ammonia sensor in contact with a container holding a volume of ammonia; and monitoring the ammonia sensor for a detectable response from the at least one thermal indicator component due to contact of ammonia with the acid that generates thermal energy sufficient to cause the response.

The present disclosure includes a sensor element for registering temperature of an object, which includes: a substrate, wherein the substrate includes a platform face, which defines a first plane; a temperature detector, which is applied on a first temperature plane on the substrate and which is embodied to register the temperature of the object, wherein the first temperature plane lies in the first plane or essentially in parallel with the first plane; at least one sensor applied on a first subregion of the substrate for determining a temperature difference within the first subregion; and a passivation, which is applied on the substrate and which covers the substrate, the temperature detector and the sensor for determining the temperature difference, as well as residing in a method for assessing measurement quality of a sensor element of the present disclosure.

The present disclosure includes a sensor element for registering temperature of an object, which includes: a substrate, wherein the substrate includes a platform face, which defines a first plane; a temperature detector, which is applied on a first temperature plane on the substrate and which is embodied to register the temperature of the object, wherein the first temperature plane lies in the first plane or essentially in parallel with the first plane; at least one sensor applied on a first subregion of the substrate for determining a temperature difference within the first subregion; and a passivation, which is applied on the substrate and which covers the substrate, the temperature detector and the sensor for determining the temperature difference, as well as residing in a method for assessing measurement quality of a sensor element of the present disclosure.

A device for measuring the internal temperature of a reforming tube including a first structure having an axial part of tubular shape positioned in the lengthwise direction of a reforming tube and a radial part projecting radially towards the central axis of the reforming tube, a second structure of oblong shape having at least one thermocouple made of welded Nicrosil/Nisil conductors arranged longitudinally against the axial part and radially against the radial part, and an outer sheath enveloping the first structure and the second structure.

A device for measuring the internal temperature of a reforming tube including a first structure having an axial part of tubular shape positioned in the lengthwise direction of a reforming tube and a radial part projecting radially towards the central axis of the reforming tube, a second structure of oblong shape having at least one thermocouple made of welded Nicrosil/Nisil conductors arranged longitudinally against the axial part and radially against the radial part, and an outer sheath enveloping the first structure and the second structure.

A method for determining a temperature of an object includes contacting the object with a first electrical conductor. A difference in electronegativity between the object and the first electrical conductor is greater than a predetermined value. The method also includes contacting the object or a substrate on which the object is positioned with a second electrical conductor. A difference in electronegativity between the object or the substrate and the second electrical conductor is less than the predetermined value. The method also includes connecting the first and second electrical conductors together. The method also includes measuring the temperature of the object using the first and second electrical conductors. The first and second electrical conductors form at least a portion of a thermocouple.