This paper presents a new data compression method for current loop transmitters. In this method, the 4-20 mA current domain is divided into some equal pieces that are used for distinct data domain with a constant relative resolution, resulting in widening the signal span. This technique eliminated the need for high resolution ADC’s or DAC’s in communication of 4-20mA current loop signals. Furthermore, because of high amplitude of current steps the sensitivity of transmitter and receiver to noise and interference is reduced. As this is a software-based technique, there is no need to change the structure of the intelligent transmitters.
Kaabi, H. .., & Azhari, S. J. .. (2001). A Novel Data Compression Technique for 420 Ma Current Loop Transmitters. International Journal of Engineering, 14(1), 35-40.
MLA
H . Kaabi; S. J . Azhari. "A Novel Data Compression Technique for 420 Ma Current Loop Transmitters". International Journal of Engineering, 14, 1, 2001, 35-40.
HARVARD
Kaabi, H. .., Azhari, S. J. .. (2001). 'A Novel Data Compression Technique for 420 Ma Current Loop Transmitters', International Journal of Engineering, 14(1), pp. 35-40.
VANCOUVER
Kaabi, H. .., Azhari, S. J. .. A Novel Data Compression Technique for 420 Ma Current Loop Transmitters. International Journal of Engineering, 2001; 14(1): 35-40.
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