Because microelectronics technologies and micro computer are applied to flow measurement system
flowmeter tends toward digitizing
many tradition measurement methods are progressed a lot which result design conception changes.The concept and method of tradition flow measurement is being perfected
it opens up a new field for the metrology of flow and brings about intelligence flow measurement.
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Novel digital signal processing techniques for ultrasonic gas flow measurements [J] . N Roosnek. Flow Measurement and Instrumentation . 2000 (2)