منابع مشابه
A Curve-fitting Calibration Method applied for Ultrasonic Flow-meter
As the influence of fluid distribution in the internal pipe, the measurement characteristics of theory and practice exist significant differences in Ultrasonic Flow-meter (USF). Through analysis of fluid state, the method of curve-fitting is applied for the calibration of USF. Experimental results show that the USF can achieve level-1 accuracy with just a correction of 5 flow points, and this m...
متن کاملA Signal Pre-processing Algorithm Applied for Ultrasonic Flow-meter
In order to solve the problem of time difference ultrasonic flow meter’s low accuracy, against the basic characteristics of the sample data, a data-processing algorithm is proposed. First, we use shell sort do a data pre-processing to the samples, then remove the error of the sample space by complex digital filter, and use the error compensation algorithm to get the final sample results. Among ...
متن کاملK V Santhosh: Fusion of Venturi and Ultrasonic Flow Meter for Enhanced Flow Meter Characteristics Using Fuzzy Logic
This paper proposes a technique for measurement of liquid flow using venturi and ultrasonic flow meter(UFM) to have following objectives a) to design a multi-sensor data fusion (MSDF) architecture for using both the sensors, b) improve sensitivity and linearity of venturi and ultrasonic flow meter and c) detect and diagnosis of faults in sensor if any. Fuzzy logic algorithm is used to fuse outp...
متن کاملMeasuring Low Magnetic Field in Electromagnetic Flow Meter
Space distribution of low magnetic field amounting to 1 mT can be measured in detail using a commercial 3D probe with a modified control circuit. The probe was calibrated carefully using a known field from Helmholtz coils. The 3D positioning system enables the measurement of the field distribution. The apparatus was used for measuring the magnetic field of the electromagnetic flow meter. Additi...
متن کاملComparison of peak flow gauge and peak flow meter.
A comparison has been made of the new peak flow gauge and the Wright peak flow meter. Close correlation was found between measurements made with the two instruments both in normal subjects and in patients. The peak flow gauge is as consistent as the peak flow meter but is cheaper and more portable. It should be useful in survey work in general practice and for loan from hospital outpatient depa...
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ژورنال
عنوان ژورنال: Journal of the Visualization Society of Japan
سال: 2003
ISSN: 1884-037X,0916-4731
DOI: 10.3154/jvs.23.supplement1_191