Abstract: A method and a gas flow meter for measuring gas flow. A cylinder is supported in the flow meter with a horizontal orientation. A piston is disposed movably within the cylinder, the piston having a surface which forms a clearance seal with a surface of the cylinder. The piston may have a low-friction coating such as diamond-like carbon. A gas flow to be measured is received at a gas inlet, and directed to the cylinder so as to move the piston within the cylinder. The gas flow is directed by valves and conduits alternately to the two ends of the cylinder, for measuring the gas flow in both directions of the cylinder. From the detected movement of said piston electrical signals representative of the gas flow are generated.

Abstract: A method and a gas flow meter for measuring gas flow, having a cylinder, and a piston disposed movably within the cylinder, forming a clearance seal between the piston and the cylinder. A gas flow to be measured is directed to the cylinder so as to move the piston within the cylinder. From the detected movement of the piston, electrical signals representative of the gas flow are generated. Gas temperature and pressure data are also measured. A controller calculates a standardized flow rate of gas based on gas species information, and determines a compressibility factor based on the gas species information and the temperature and pressure data, and calculates a corrected flow rate. The compressibility factor is determined from a table pre-stored in a memory.

Abstract: A method and a gas flow meter for measuring gas flow. A cylinder is supported in the flow meter with a horizontal orientation. A piston is disposed movably within the cylinder, the piston having a surface which forms a clearance seal with a surface of the cylinder. The piston may have a low-friction coating such as diamond-like carbon. A gas flow to be measured is received at a gas inlet, and directed to the cylinder so as to move the piston within the cylinder. The gas flow is directed by valves and conduits alternately to the two ends of the cylinder, for measuring the gas flow in both directions of the cylinder. From the detected movement of said piston electrical signals representative of the gas flow are generated.

Abstract: An enclosure has a set of panels forming an outer peripheral skin. A heat exchanger wall is placed within the panels. A first fan arrangement circulates ambient air into a space within the panels and along the exterior surface of the heat exchanger wall and back into the environment. A second fan arrangement circulates air contained within the enclosure against the interior surface of the heat exchanger wall. Heat is transferred through the heat exchanger wall to the ambient air circulated by the first fan. An inner wall is placed adjacent to the interior surface of the heat exchanger wall. The space between the inner wall and the heat exchanger wall forms a space for the air within the interior of the enclosure to circulate by the second fan. The heat exchanger wall provides a barrier isolating the ambient air from the air within the enclosure, preventing dust, humidity and pollutants to enter into the interior of the cabinet in the space surrounding the electronic components.

Abstract: In a terminal connected to a distribution cable composed of wire pairs corresponding to communication lines, the wire pairs are disposed in an array across index strips. Termination of a selected wire pair corresponding to a communication line is achieved by mounting an insulation displacement connection (IDC) connector on one of the index strips. In the mounting process, the connector makes electrical contact with the selected wire pair. Drop wires may then be connected to the IDC connector, and brought into customer premises to realize the communication line. Unterminated wire pairs are available for termination at another terminal. Advantageously, using one or more terminals to distribute the wire pairs in accordance with the invention obviates, among others, the need for a prior art feeder distribution interface used in the traditional wire pair distribution.

Abstract: Disclosed is an electronics cabinet for mounting on the ground while preventing excessive strain on electrical or optical conductors passing into and out of the cabinet. The conductors are arranged on equipment such as a fiber organizer which is mounted to the cabinet housing by means of magnets so that the organizer will slide with respect to the housing in the event that the cabinet moves due to changes in ground temperature.