2 edition of Transducer parameter selection for two phase flowmetering found in the catalog.
Transducer parameter selection for two phase flowmetering
Yahia Abdullah Faraj
Written in English
M.Phil. thesis. Typescript.
S-parameters are the electrical characteristics of a signal in a complex network. It is also known as scattering parameters and mostly used in RF network and applications. Vector Network Analyzer is used to measure and analyze signal behavior of S-parameters. Series DME programmable ac power transducer measures up to six parameters with four analog and two digital outputs. On a three-phase system, it can measure voltage and current, as well as active power or watts and reactive power or power factor. Limit readings and metering information is available on digital outputs. GMC Instruments, Inc.
A variety of transducer kits are available to handle a wide range of applications. Selection is based on pipe size and temperature range. More transducers can be added to the kit by ordering separately if the desired combination is not available as part of a standard kit. The PT comes standard with a soft sided carrying case. Made from. 4. Transducer Selection. The selection of the correct transducer to perform a measurement function depends on many factors. These are detailed below. Current Transducers. Current transducers are usually connected to the secondary of an instrument current transformer with a rated output of 1 or 5 amps. Mean-sensing and true r.m.s. types are.
10) Linear variable differential transformer (LVDT): LVDT is the transformer consisting of the primary and the secondary coil. It converts the displacement into the change in resistance. 11) Ultrasonic Transducers: These transducers use the ultrasonic or ultrasound waves to measure parameters like fluid level, flow rate etc. Apart from these there are some more electrical type of transducers. Background. Knowledge of the individual fluid flow rates of a producing oil well is required to facilitate reservoir management, field development, operational control, flow assurance and production allocation.. Conventional Solutions. Conventional solutions concerning two- and three-phase metering systems require expensive and cumbersome test separators, with associated high maintenance, and.
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Transducer Parameters. Transducer Parameters. Zur Navigation springen. Zum Content springen. Contact | Imprint and Data Protection. Diagnostics of Audio Systems Amplitude and phase response Nominal electrical impedance Z n; Impedance measured by using a large signal model Parameters.
meter Transducer parameter selection for two phase flowmetering book transducer under test can then be performed. For more complete instructions on operation of the C in the ac voltage mode, refer to section of the operation manual.
A.C. Current Calibration of a single phase transducer or meter for ac current follows virtually the File Size: KB. renamed to “Multiphase flow metering philosophy” (Chapter 5).
As the change in heading indicates, the chapter has been extended to include more of the general and overall reasoning for selection, installation and operation of multiphase flow metering systems in various applications. TRANSDUCERS • A transducer is a device that converts energy from one form to another • Energy forms can be mechanical, visual, aural, electrical, thermal, chemical, etc.
(examples to follow) • Used to change information into a form that can be easily transferred, stored, processed, interpreted, Size: KB. Transducers Position Transducers Velocity Transducers Force or Pressure Transducers Temperature Transducers Summary Key Words Answers to SAQs INTRODUCTION Sensors can be broadly classified in two File Size: KB.
Often a scheme is required to sum up the currents from two more incomers, to arrive at the net current or power flow into the switchgear. A special auxiliary transformer with multiple primary 5A windings is common.
The secondary winding rating is chosen based on the net current expected with two or more of the incomers in service (Figure 2. to our knowledge of our own transducers. Design parameter wil caussl e the per formance of component loudspeakers to vary widely.
Make sure that your selection is designed for hig fidelith y reproduction, as well as the ability to matc assoh the ciated components used in the system. In addition to published information, Altec.
A transducer will have basically two main components. They are 1. Sensing Element passive transducers (electrical transducers), their electrical parameter (resistance, capacitance, etc), principle of operation and applications are listed below.
Resistive Transducers 1. Section Electrical Parameters vs. Temperature Accuracy (Electrical Error) Phase Shift Transformation Ratio Impedances, Input Current and Input Power Null Voltages Section Mechanical Parameters and Mounting Considerations Mechanical Parameters Mounting Considerations - Housed.
A lumped‐parameter equivalent circuit of a tonpilz transducer is used to predict element amplitude and phase tolerance for different radiation loadings, based on in‐air measurements of the transducers.
Relationships among the measurable parameters of a transducer and its performance characteristics have been explored. Preliminary estimates of acceptable tolerances for each circuit. into two groups: those that are dependent on applied pressure and those that are not.
Figure 2 gives a typical response curve for the transducer, with applied pressure, P A, on the X - axis and output voltage signal, V S, on the Y - axis. P REF is the pressure used as a reference in measuring transducer errors.
For each of Honeywell’s. Single phase flows Two phase flows 1. Void fraction measurement (A v/A) a) Capacitance measurement b) Optical characterization 2. Quality measurement (m v/m) These techniques are for the most part all used in classical fluid flows.
The unique “cryogenic” features have to do with instrumentation used to detect signal and need. Related post: How To Wire a 3-Phase kWh meter.
Installation of 3-Phase Energy Meter. Measurement Transducers. In order to improve accuracy of the measurement of electrical parameters and to allow an easy connection to PLC (Programmable Logic Control) and equipments of SCADA measurement transducers are used.
feedback and voltage feedback op amps. The meat of this book is Chapt 13, and 14 where the reader is shown how design the converter to transducer/actuator interface with the aid of op amps. The remaining chapters give support material for Chapt 13, and Chapter 18 was a late addition.
Accurate with Two-Phase and Perfectly Clean Liquids The TransPort PT’s patented Correlation Transit-Time™ digital signal processing (DSP) technique greatly increases its signal-to-noise ratio for accurate, drift-free flow measurement in liquids that contain a second phase of.
This paper presents a dynamic ensemble selection approach to developing least squares support vector regression (LSSVR) models for the flow metering of gas-liquid two-phase CO le models based on flow pattern recognition and dynamic ensemble selection (FPR-DES) are established for the measurement of total mass flowrate and gas volume fraction of two-phase CO 2, respectively.
The new system transmits two beams of ultrasound in bursts of to μs duration at 2 MHz through the metered medium to two receiver transducers, one upstream and one downstream.
Parameters selection of the transducer takes key role to enhance the detection sensitivity such as frequency, size, refraction angle, distance offset, and focal point distance. This selection is generally dependent on human experience as it is highly time-consuming and subjective.
fluids. A discharge coefficient C is typically introduced to account for the viscosity of the fluid. 1 2 1 2 2 1 P A QC A A ρ ∆ = ⎛⎞ ⎜⎟− ⎝⎠ C is found to depend on the Reynolds Number of the flow, and usually lies between and for smoothly tapering venturis.
For air flow you can use the same calculation and assume that the gas is incompressible. Understanding the Challenges of Two-Phase Flow 2-phase flow is difficult for all flowmeters All flow meter technologies have limitations, and most have a tough time with two-phase flow, such as air mixed in a liquid stream.
The fluid dynamic characteristics of a liquid and air mixture are extremely complex, and to a large degree are still. Output in kW/HP. There are two principle limitations for selecting the motor output: 1. Mechanical limitation. The breakdown torque, which is the maximum torque that the motor can produce when operating without is a critical design factor in motor applications, particularly for the motors subjected to occasional extreme load conditions.MHz-range ultrasonic transducers have been designed for transit-time ultrasonic flowmetering with a high accuracy of % in flow measurement and an exposure to fluid temperature applications of.Fluid flow rate is an important measurement in the process industries.
Selecting an appropriate flow measurement technique can be a daunting task. Flow metering technologies tend to fall into four classifications: velocity, inferential, positive displacement, and mass.
Among the common flow meters used to measure flow include.