Abstract:
A sensor system for detecting mass deposition from a gaseous environment includes a first sensor element including a first electrically conductive heating component and a first interface structure on the first electrically conductive heating component. The sensor system further includes electronic circuitry in connection with the first electrically conductive heating component. The electronic circuitry is configured to provide energy to the first electrically conductive heating component to heat the first sensor element and to measure a thermodynamic response of the first sensor element, which varies with mass deposition of one or more compositions on the first interface structure.
Abstract:
Die Erfindung bezieht sich auf einen Sensor, insbesondere Hochtemperatursensor, aufweisend zumindest einen vollkeramischen Heizer (3, 3'); und zumindest eine erste Sensorstruktur (9) angeordnet zumindest bereichsweise auf einer ersten Seite des vollkeramischen Heizers (3, 3'). Auch betrifft die vorliegende Erfindung ein Verfahren (1000) zum Herstellen eines Sensors.
Abstract:
La présente invention se rapporte à un procédé de détermination d'une contamination introduite par un équipement au sein de deux échantillons constitués d'un matériau semi-conducteur non compensé en impuretés dopantes, les deux échantillons ayant des types de conductivité opposés et comportant chacun des impuretés dopantes majoritaires dont le type de conductivité et la concentration sont connus. Le procédé comporte les différentes étapes consistant à : a) soumettre (310) chacun des deux échantillons à un traitement thermique dans l'équipement, la contamination introduite par l'équipement lors du traitement thermique se traduisant par l'apparition d'impuretés dopantes, dont le type de conductivité et la concentration sont inconnus, au sein des deux échantillons, les impuretés dopantes dues à la contamination étant minoritaires dans au moins un des deux échantillons traités; b) mesurer (320) dans chacun des deux échantillons traités la densité de porteurs de charge en fonction de la température; c) définir (330) pour chacun des deux échantillons traités une courbe représentant le logarithme de la densité de porteurs de charge en fonction de l'inverse de la température; d) détecter (340), pour ledit au moins un des deux échantillons traités, la position d'un changement de pente dans une zone de la courbe correspondant à un régime d'ionisation des impuretés dopantes; e) déterminer (350) la concentration des impuretés dopantes minoritaires dudit au moins un des deux échantillons traités à partir de la position du changement de pente.
Abstract:
Se provee una sonda de flujo de agua líquida de hilo caliente múltiple que permite la medición de velocidad en tierra, el contenido de agua líquida (LWC) y el flujo de agua líquida (LWF) en bruma o neblina. La sonda comprende al menos dos hilos calentados en suspensión en espigas de contacto de conducción eléctrica mantenidos a temperaturas contante o compensaciones de temperatura constante en relación a la temperatura ambiente, donde los sensores de hilo son soldados a estas espigas de contacto o son mecánicamente retenidos entre ranuras en los extremos de las espigas de contacto, y las espigas de contacto tienen extremos biselados y en ángulo ascendente para impedir que el agua que impacta la espiga de contacto pase a la sonda de hilo.
Abstract:
It is disclosed herein a semiconductor device and a method of manufacturing the semiconductor device. The semiconductor device is made using partly CMOS or CMOS based processing steps, and it includes a semiconductor substrate,a dielectric region over the semiconductor substrate, a heater within the dielectric region and a patterned layer of noble metal above the dielectric region. The method includes the deposition of a photoresist material over the dielectric region, and patterning the photo-resist material to form a patterned region over the dielectric region. The steps of depositing the photo-resist material and patterning the photo-resist material may be performed in sequence using similar photolithography and etching steps to those used in a CMOS process. The resulting semiconductor device is then subjected to further processing steps which ensure that a dielectric membrane and a metal structure within the membrane are formed in the patterned region over the dielectric region.
Abstract:
Embodiments of the present invention relate to a gas sensor system comprising a gas sensor, a fluid reservoir enclosing a fluid and in proximity to the gas sensor and a membrane positioned between the gas sensor and fluid reservoir, wherein the membrane allows a sufficient amount of a test gas generated from the fluid to contact the gas sensor for testing. Embodiments also relate to a method of testing a gas sensor, the method comprises contacting reagents within a fluid reservoir, generating a test gas and contacting a gas sensor with the test gas sufficient to test the gas sensor.
Abstract:
There is described a method and circuit for determining a temperature coefficient of change of a parameter of an electrical component, the method comprising: providing at least one thermally-isolated micro-platform on a substrate; placing an electrical component on the at least one thermally-isolated micro-platform; heating the electrical component; measuring a parameter value of the electrical component at a plurality of temperatures; and determining the temperature coefficient based on the measured parameter values.
Abstract:
The proposal is for a heater arrangement for a measuring probe to determine components in gases, especially internal combustion engine exhaust gases. The heater arrangement consists of at least two at least partially superimposed heating elements (10, 11) electrically insulated from each other by at least one insulating layer. From one heating element (10) to the other (11) a contact (14) through the insulating layer is arranged in such a way that the heating elements (10, 11) are connected in series one behind the other.
Abstract:
A sensor node for detection of fungus including a sensor to detect at least one component in a gas by a change of an electrical property, and a control circuit to control a temperature and to measure a transient of the electrical property during an application of a thermal pulse on the sensor. Another aspect concerns a sensing system including one or more sensor nodes, and a server for receiving data from the sensor nodes. Another aspect concerns a method for sensing, including generating a thermal pulse by a control circuit so that information is generated based on a measurement of a transient of an electrical property of a sensor based on the detection of at least one component in a gas, recording the transient, calculating and processing a plurality of parameters into principal components, and processing the principal components to determine a likelihood of a colonization by fungus.