Central Frequency Detecting Type FM Ultrasonic Flowmeter Using Regenerative Modulation Elimination Method
نویسندگان
چکیده
منابع مشابه
Frequency Modulation ( FM ) Tutorial
Lawrence Der, Ph.D. Silicon Laboratories Inc. Introduction Edwin H. Armstrong, known as one of the founding fathers of radio technology, invented the superheterodyne radio receiver in 1918 and frequency modulation (FM) in 1933 [1]. These two concepts, along with his regenerative circuit technique developed in 1912, formed the basis of radio frequency electronics as we know it today. In the Unit...
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ژورنال
عنوان ژورنال: Transactions of the Society of Instrument and Control Engineers
سال: 1999
ISSN: 0453-4654
DOI: 10.9746/sicetr1965.35.606