Measuring and testing – Volume or rate of flow – Thermal type
Patent
1987-10-13
1988-10-18
Myracle, Jerry W.
Measuring and testing
Volume or rate of flow
Thermal type
731182, G01F 168
Patent
active
047778202
ABSTRACT:
An apparatus for determining the flow rate of a flowing medium having a substrate as a carrier and a resistor arrangement disposed on the substrate which among other elements includes a layer-like measuring resistor (R.sub.H) as well as a likewise layer-like heating resistor (R.sub.S), the heating output of which is regulated such that the measuring resistor (R.sub.H) has a constant temperature, the heating output of the heating resistor (R.sub.S) being a standard for the flow rate of the flowing medium. The surface area of (R.sub.S) is greater than the surface area of (R.sub.H) and extends farther toward a fastening of the substrate, in order to prevent a flow of heat out of the vicinity of the measuring resistor (R.sub.H). The measuring resistor (R.sub.H) and the heating resistor (R.sub.S) are located on the downstream portion of the substrate, on a lip set off by a slit. With this disposition of the measuring resistor (R.sub.H), soiling of the substrate affects the measurement result only slightly.
REFERENCES:
patent: 3995249 (1976-11-01), Ferry
patent: 4399697 (1983-08-01), Kohama et al.
patent: 4498337 (1985-02-01), Gruner
patent: 4594889 (1986-06-01), McCarthy
Hecht Hans
Kienzle Wolfgang
Kleinhans Josef
Kuhn Ulrich
Wocher Berthold
Greigg Edwin E.
Myracle Jerry W.
Robert & Bosch GmbH
LandOfFree
Apparatus for determining the flow rate of a flowing medium does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Apparatus for determining the flow rate of a flowing medium, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Apparatus for determining the flow rate of a flowing medium will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1187787