Gasdichtemessung mittels Akustischer Methode / Gas density measurement by an acoustic method

1983 ◽  
Vol 50 (JG) ◽  
Author(s):  
E.N. HARAN
1968 ◽  
Vol 1 (1) ◽  
pp. 14-15 ◽  
Author(s):  
J. Agar

This paper discusses the advantages of frequency modulated transmission of information in plants, and how this philosophy is adapted in practice in the form of two instruments for on-line measurement of liquid and gas densities. The importance of measuring density is well appreciated for on-line blending and various forms of quality control applications, but special attention is drawn to its necessity in gas flow metering.


1978 ◽  
Vol 49 (2) ◽  
pp. 242-244 ◽  
Author(s):  
Sheridan C. Johnston ◽  
Lutz W. Dahlke

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