منابع مشابه
An electromagnetic catheter-flowmeter.
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A flow meter generates flow data which contains information about each connection observed on a network from a stream of observed packets. Flow meters can be implemented in standalone measurement devices or inline on packet forwarding devices, such as routers. YAF (Yet Another Flowmeter) was created as a reference implementation of an IPFIX Metering and Exporting Process, and to provide a platf...
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A flowmeter is described which may be used to measure gas flow in experimental situations. It may be adapted for use with any gas or gas mixture and be used to provide flows as small as 50 ml min-1. A mercury-in-glass manometer (sphygmomanometer) is used to measure the gas pressure proximal to a flow restrictor (consisting of a hypodermic needle hub) and it is this pressure head which, for a gi...
متن کاملMass Flowmeter Using a Multi-sensor Chip
We report here a novel two-mode mass flowmeter that can be operated in either thermal or differential pressure mode. By combining these two complementary operating principles, the performance can be improved significantly. This flowmeter is based on a multi-sensor chip that includes a 1-D array of shear stress, pressure and temperature sensors. The multi-sensor chip can also be employed in many...
متن کاملThe Development of CPLD-Based Ultrasonic Flowmeter
The measurement principle of the transit time difference method of the ultrasonic flowmeter is presented. The hardware structure and realization method are introduced. The software function and work mode are overviewed. In order to enhancing flowmeter's precision and stability a Xilinx CoolRunner CPLD and a Texas Instruments microcontroller from MSP430 family are applied in high precision timin...
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ژورنال
عنوان ژورنال: Flow Measurement and Instrumentation
سال: 2019
ISSN: 0955-5986
DOI: 10.1016/j.flowmeasinst.2019.101607