Control and Instrumentation articles from February 1995

Control and Instrumentation archives from February 1995

Simulators and calibrators. (National Measurement Accreditation Service)
February 1, 1995... Claims for NAMAS accreditation continue to create confusion - we try to clarify this situation Only four of the 12 companies claiming NAMAS accreditation in our December flow survey were correct in making this statement. Why is there...

Volume or mass? (developments in mass flowmeters)
February 1, 1995... Opportunities for using the latest developments in mass flowmeters continue to increase When considering a flow application, do we ever stop consider the fact that in many cases mass flow is a far more logical choice than volume? Mass does not...

Offshore flow metering.
February 1, 1995... Cost reductions and new technology are impacting choices - both old and new - for flowmetering devices The driving force for change in the measurement of oil and gas from offshore platforms is not only being driven by the need for improved...

Flow in the water industry. (flow measurement)
February 1, 1995... The ideal flowmeter does not exist - but techniques for flow measurement improve as industry matures Flow measurement is vital to successful utility management for: revenue metering, leakage and waste detection, distribution management,...

Power to the people. (instrumentation and control in power generation)
February 1, 1995... As more is demanded of combined cycle plants, instrumentation and control strategies are responding Instrumentation and control in power generation is quite a subject. It spans a substantial range of plants - coal-fired, nuclear, combined heat...

Fieldbus: an independent view.
February 1, 1995... As a single standard flounders, lower-level networks, such as LON and CAN, are beginning to move in IEC/ISA SP-50 international fieldbus specifications are still under development. However, the specifications continue to be bogged down in...

Chaos reigns. (chaos in systems)
February 1, 1995... Chaos promises improved control for the more complex systems that have proved uncontrollable Many C&I engineers might say that chaos is simply the natural way of things on an average process plant. However, chaos, if the pundits are to be...