A process pulsation diagnostic system comprises a primary element, a sensor and a processor. The primary element generates a differential pressure along a fluid flow. The sensor samples the differential pressure. The processor generates a pulsation diagnostic based on a standard deviation of the differential...http://www.google.com.au/patents/US20100011869?utm_source=gb-gplus-sharePatent US20100011869 - Differential pressure diagnostic for process fluid pulsations
