%0 Journal Article %T A Novel Data Compression Technique for 420 Ma Current Loop Transmitters %J International Journal of Engineering %I Materials and Energy Research Center %Z 1025-2495 %A Kaabi, H . %A Azhari, S. J . %D 2001 %\ 02/01/2001 %V 14 %N 1 %P 35-40 %! A Novel Data Compression Technique for 420 Ma Current Loop Transmitters %K Current Transmitters %K Data Compression %K Intelligent Transmitters %K Data Decoding %R %X 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. %U https://www.ije.ir/article_71284_93d80fde5e27140f6212c86bf601f44c.pdf