The discussion highlights the impact of transmission line diameter on pressure measurement accuracy, particularly with electrical sensors like transducers. It notes that standard 4mA-20mA sensors can provide consistent readings over long distances due to resistance corrections. However, long, thin tubing can dampen pressure fluctuations, making it unsuitable for measuring unsteady changes. While time-averaged values remain unaffected, the diameter can influence the stabilization time after pressure changes. Understanding these factors is crucial for selecting appropriate measurement techniques.
