Author: Andre Szykier CEO/CTO GridPlex Networks LLC Copyright © 2010 P ag e1 Demand Response and Grid Management are power utility initiatives driven by Federal and State stimulus programs to make the electric grid more reliable, secure and intelligent. The first step in making a grid “smart” is by replacing existing end user power utility meters with smart meters that support bi-directional co...

The majority of all gas measurement used in the world today is performed by two basic types of meters, positive displacement and inferential. Positive displacement meters, consisting mainly of diaphragm and rotary style devices, generally account for lower volume measurement. Orifice, ultrasonic and turbine meters are the three main inferential class meters used for large volume measurement tod...

INTRODUCTION Glucose control to prevent both hyperglycemia and hypoglycemia is important in an intensive care unit. Arterial blood gas analyzers and glucose meters are commonly used to measure blood-glucose concentration in an intensive care unit; however, their accuracies are still unclear. METHODS We performed a systematic literature search (January 1, 2001, to August 31, 2012) to find clin...

The conformity assessment of utility meters is the process by which compliance measuring instruments with essential requirements determined. uncertainties associated accuracy measurements during testing shall be evaluated and accounted for when making decisions about specifications. This paper describes evaluation methods measurement results in applicable laboratories.

Dry gas meters are used in physiology laboratories to measure minute ventilation. The accuracy of these meters must be known since an error, of for instance 5%, affects the subsequent calculations for oxygen consumption by the same amount. Two precalibrated DTM-325 dry gas meters (American Meter Co., Philadelphia, PA, USA) were therefore tested for accuracy against a 350 l Collins chain-compens...

Due to increasing economic pressures in natural gas production, there is a recognized demand for flow meters that are able to measure when a significant quantity of liquid is present in gas flows. The key issues are that the liquid quantity is often unknown and its presence can affect the operation of traditional dry gas meters making the gas flow readings inaccurate. A number of techniques are...