Abstract:
Visual and electronically readable temperature indicators and methods of making the same have an electric circuit with a microchip and a bridge within the circuit, and a facing material over the electric circuit. The bridge includes either a single layer or multiple layers that include a conductive material, a phase change material having a pre¬ selected melt temperature, a binder, a first colorant that is soluble in the phase change material and/or a second colorant that is a special effect pigment. In operation, at temperatures below the pre-selected melt temperature, the bridge is electrically conductive, and at a temperature at or above the pre-selected melt temperature, the phase change material melts and dilutes the conductive material, so that the bridge is electrically non-conductive, and a color change occurs that is visible to the user through the facing material such as through a transparent window or in an absorbent material.
Abstract:
Es wird ein Sensorelement zur Temperaturmessung beschrieben. Das Sensorelement (1) ist dazu vorgesehen mittels Drucksintern auf einer Leiterplatte befestigt zu werden, wobei eine Bauform des Sensorelements (1) so ausgebildet ist, dass eine Druckbeaufschlagung auf das Sensorelement (1) während des Drucksinterns kompensiert wird. Ferner werden Verfahren zur Herstellung eines Sensorelements (1) beschrieben.
Abstract:
A sensing element for sensing a temperature of an electrically heated window includes a coil of filament wire having a first end and a second end, the coil having a resistivity that changes based on temperature, a first substantially flat conductive material electrically coupled to the first end of the coil, a second substantially flat conductive material electrically coupled to the second end of the coil, a first lead wire electrically coupled to the first substantially flat conductive material and extending outwardly, and a second lead wire electrically coupled to the second substantially flat conductive material and extending outwardly.
Abstract:
An example fluid parameter sensor and meter is disclosed to measure at least one parameter of a fluid. In an example, the fluid parameter meter includes an outer conduit. A sensor element assembly is disposed in the outer conduit and has at least one straight uniform sensor element with an open interior to convey the fluid inside of the sensor element assembly. At least one mounting flexure is fixedly attached to the sensor element assembly and to the outer conduit. The at least one mounting flexure is configured to enable the sensor element assembly to vibrate in a natural radial mode shape of vibration. At least one vibration driver causes the sensor element assembly to vibrate. At least one vibration sensor senses the vibration of the sensor element assembly.
Abstract:
A microfluidic chip having integrated heaters and a method for manufacturing the microfluidic chip is provided. Specifically, the microfluidic chip comprises a first substrate having a microchannel formed therein. The second substrate is bonded to the first substrate to encapsulate the microchannel. An integrated heating element, that is hermetically sealed and electrically isolated from the microchannel, is formed on the top surface the second substrate after the first and second substrates are bonded together. A biological reaction can be performed in the microchannel of the microfluidic chip while the fluid in the microchannel is heated by electrical current passing through the integrated heating element.
Abstract:
L'invention concerne un procédé de fabrication d'un élément sensible à au moins un paramètre physique d'un écoulement de fluide, comprenant une étape consistant en un cycle unique d'immersion dans du verre en fusion, d'un mandrin d'un élément sensible pré-assemblé, ledit mandrin comprenant au moins deux canaux longitudinaux dans lesquels passent longitudinalement au moins deux fils de raccordement conducteurs se raccordant à un bobinage au moins bifilaire, ledit bobinage étant adapté pour former un circuit résistif ou inductif de détection dudit paramètre physique, ladite immersion permettant de sceller les fils de raccordement dans les canaux, remplir lesdits canaux et enrober l'extérieur du mandrin en une seule immersion, le mandrin étant, à l'issu dudit cycle d'immersion unique, scellé et enrobé de manière à obtenir un élément sensible assemblé. De manière avantageuse, le bobinage peut être enroulé en « tire-bouchon » à l'intérieur des canaux longitudinaux, l'immersion permettant de maintenir les fils de raccordement au bobinage et de contrôler l'espace entre les spires du bobinage.
Abstract:
Die Erfindung betrifft ein Verfahren zur Bestromung der Statorwicklungen einer motorisch betreibbaren Drehfeldmaschine, wobei die Statorwicklungen jeweils mit Phasenströmen beaufschlagt werden, die unter Verwendung eines vektorbasierten Verfahrens vorgegeben werden. Die Phasenströme werden zumindest teilweise mit Biasstromen beaufschlagt, welche durch das vektorbasierte Verfahren derart bestimmt werden, dass sie in der Drehfeldmaschine keine Momentenwirksamkeit aufweisen.
Abstract:
Anordnung eines Sensors zur Messung der Temperatur eines Mediums (4) in einem Kraftfahrzeug, wobei der Sensor einen Sensorkörper (3) und zwei Anschlussdrähte (1, 2) umfasst und vom Medium (4) vollständig isoliert ist, und wobei der Sensorkörper (3) mittels einer den Sensorkörper (3) vollständig umgebenden Umhüllung (8) elektrisch vom Medium (4) isoliert ist, und mit dem Medium über die Anschlussdrähte (1, 2) und die umgebende Umhüllung (8) wärmeleitend in Kontakt steht.