System for identifying a sensor and measuring flow in a flow duct
First Claim
1. System for measuring flow of gas or air, which system comprises a flow duct, which flow duct comprises at least two transducers, which transducers generate at least one beam of ultrasound in the flow duct, which transducers are connected to a transmitter and to a receiver, wherein the transducers are mounted and fixed in relation to the duct, wherein the transmitter is permanently connected to the transducers, wherein the receiver is located in a handheld device, the handheld device communicates with the transmitter, wherein the transmitter comprises to a source of calibration data representing the location of the transducers in the flow duct and the size of the flow duct, which calibration data is communicated by the transmitter to the receiver in the handheld device.
2 Assignments
0 Petitions
Accused Products
Abstract
A system or a method for measuring flow of fluid or gas, has a flow duct with at least two transducers which generate at least one beam of ultrasound in the flow duct in which ultrasound transducers are placed in a fixed positions in a duct for flowing air where the electronic device for analyzing signal from the transducers is performed in a handheld device. A transmitter circuit is permanently connected to the transducers and a receiver circuit is placed in a handheld device. The transmitter circuit has calibration data representing the actual placement of the transducers in relation to the actual duct, which calibration data is communicated by every connection to the receiver circuit. Hereby can be achieved that transducers can be permanently placed in ventilation ducts in buildings, where placement of ultrasound transducers for measurement and for calibration of measurement of an air stream is nearly impossible.
9 Citations
9 Claims
- 1. System for measuring flow of gas or air, which system comprises a flow duct, which flow duct comprises at least two transducers, which transducers generate at least one beam of ultrasound in the flow duct, which transducers are connected to a transmitter and to a receiver, wherein the transducers are mounted and fixed in relation to the duct, wherein the transmitter is permanently connected to the transducers, wherein the receiver is located in a handheld device, the handheld device communicates with the transmitter, wherein the transmitter comprises to a source of calibration data representing the location of the transducers in the flow duct and the size of the flow duct, which calibration data is communicated by the transmitter to the receiver in the handheld device.
-
9. Method for measuring flow of gas or air by means of a system comprising:
-
generating at least one beam of ultrasound in the flow duct using a transmitter permanently connected to at least two transducers mounted and fixed in relation to a duct through which a flow of gas or air passes, and communicating at least calibration data representing the location of the transducers in the flow duct and the size of the flow duct from a source of calibration data by the transmitter to a receiver located in a handheld device.
-
Specification