Method for attaching and insulating resistors

Measuring and testing – Volume or rate of flow – Thermal type

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Details

73756, 439630, G01F 168, H01R 2370

Patent

active

060792655

ABSTRACT:
A sensor arrangement for a film type anemometer which includes a carrier plate; a precision resistor; a planar, elongated heating resistor supplied with an adjustable power supply; and a retaining device. The operational temperature of the heating resistor is increased by a fixed predetermined differential amount versus the temperature determined by the precision resistor. The heating resistor has at least one resistive layer disposed on a substrate. The heating resistor is attached in a bridge-like fashion in a recess of the carrier plate. The retaining device has a low heat transfer and has two opposite attachment areas which retain respective ends of the heating resistor. Each of the attachment areas being directed towards respective ends of the heating resistor and each attachment area having at least a bearing surface, a lateral peripheral surface and a longitudinal peripheral surface which extends in the longitudinal direction of the heating resistor for receiving an end area of the heating resistor. At least one of the surfaces of the attachment areas is fastened in a mechanically stable fashion to an edge area of the heating resistor. The heating resistor is partially covered at least at one of its ends and on a top surface portion thereof in the attachment areas by a surface portion of the carrier plate.

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patent: 5540100 (1996-07-01), Von Berg

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