Device for measuring a volume flow with inductive coupling
First Claim
1. A device for measuring a volume flow, the device comprising:
- a flow channel;
a sensor element comprising an internal circuit arranged within said flow channel;
an external circuit arranged outside said flow channel, said external circuit providing contactless inductive coupling with said internal circuit for supplying said internal circuit with energy and for sensor reading including detecting operation of said internal circuit, corresponding to fluid flow in said flow channel.
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Accused Products
Abstract
A device for measuring a volume flow, especially a tidal volume flow sensor, with a flow channel (1) and with a sensor element (6) arranged within the flow channel (1), is shown and described. The task of providing such a device, in which the sensor signal, which is generated by sensor elements arranged in the flow channel, remains as free as possible from distortions during the transmission to an evaluating unit, is accomplished by providing an internal circuit (3), which is arranged within the flow channel (1) and includes the sensor element (6). An external circuit (7) is arranged outside the flow channel (1). The external circuit (7) is designed for contactless, inductive coupling with the internal circuit (3) for supplying same with energy and for reading.
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Citations
20 Claims
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1. A device for measuring a volume flow, the device comprising:
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a flow channel;
a sensor element comprising an internal circuit arranged within said flow channel;
an external circuit arranged outside said flow channel, said external circuit providing contactless inductive coupling with said internal circuit for supplying said internal circuit with energy and for sensor reading including detecting operation of said internal circuit, corresponding to fluid flow in said flow channel. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17)
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18. A volume flow measuring device comprising:
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a channel structure defining a fluid flow channel, said channel structure defining an interior fluid flow region and an exterior;
a sensor element comprising an internal circuit arranged within said flow channel interior;
an external circuit arranged at the exterior of said flow channel, said external circuit providing contactless inductive coupling with said internal circuit for supplying said internal circuit with energy and for sensing changes in inductive coupling of said internal circuit with said external circuit corresponding to changes in fluid flow in said flow channel. - View Dependent Claims (19, 20)
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Specification