A New Ultrasonic Exponential Decay Pulser Technique for Low Concentrations Detection and Measurements


(*) Corresponding author


Authors' affiliations


DOI's assignment:
the author of the article can submit here a request for assignment of a DOI number to this resource!
Cost of the service: euros 10,00 (for a DOI)

Abstract


The objective of this study was to design and implement a new ultrasonic pulser with adjustable concentration detection. The new technique based on transmits a multiple ultrasound pulses with decay power through slurry to determine the lowest concentration that can provide an accurate attenuation measurement and wide measurement range. The ultrasonic pulser was designed to transmit a reliable pulsed-power decay set that can be reprogrammed with new output variables, e.g. ,the pulse amplitude, the pulse frequency, the set size, the decay power factor of the pulse amplitude, the transmit mode, and the time interval. Ultrasound attenuation measurements were obtain for kaolin-water slurries with1%, 10%, 20%, 30%, and 40% kaolin concentration by weight. Concentration attenuation measurements of less than 5% may prove useful for process control when detecting contaminants. A long measurement level is obtained from the pulsed-power transmission, regardless of the material used to construct the container. A signal in the receiver transducer provides the attenuation measurements, for each echo, a fast Fourier transform (FFT) of the appropriate signal was obtained and compared with the water signals to yield the attenuation (as a function of frequency). The data show the feasibility of measuring a kaolin concentration of less than 5 wt%. When using a commercial pulser with the same device setting, no detectable echo was observed. Therefore, new technique measurements may prove useful in detecting solid content in liquid. This study demonstrated that the proposed pulsed-power transmission technique is promising for evaluating low concentrations of solids in fluids and for measuring sedimentation in solid-liquid systems.
Copyright © 2013 Praise Worthy Prize - All rights reserved.

Keywords


Pulse-Power Decay System; Attenuation; Contaminates Detection; Process Control

Full Text:

PDF


References


M.S. Greenwood, J.D. Adamson, and J.A. Bamberger, Long-path measurements of ultrasonic attenuation and velocity for very dilute slurries and liquids and detection of contaminates, Ultrasonic 44 e461–e466, 2006.

Q. Chen, S. Freear, and D. M. J. Cowell, Measurement of Solid in Liquid Content Using Ultrasound Attenuation, 5th World Congress on Industrial Process Tomography, Bergen, Norway, 2007.

M. S. Salim, M. F. Abd Malek, R. B. W. Heng, Naseer Sabri Salim K. M. Juni, A new measurement method of separation percentage for human blood plasma based on ultrasound Attenuation. International Journal of the Physical Sciences Vol. 6(30), pp. 6891 - 6898, 23 November, 2011.

B. Kainka, H.J. Berndt, PC Interfaces under windows, Elektor Electronics Dorchester, England. pp 21-34, 248-267, 2001.

W.R. Hedrick, D.L. Hykes, E. D. Starchman, Ultrasound Physics and Instrumentation, Elsevier Mosby, IV ed., USA, pp. 47-66, 2005.

I.William Christopher, R. Ramesh, Implementation of PIC16F877A Controlled Low Cost Single-Phase Five-level Inverter with Five Switches, (2012) International Review on Modelling and Simulations (IREMOS), 5 (1), pp. 114-120.

Jan Axelson serial port complete, Second Edition, Lakeview Research LLC, 5310 Chinook Ln., Madison , pp 43-55, 2007.

Blake, C., Bull, C. ‘IGBT or MOSFET: Choose wisely’, International Rectifier Application Notes, International Rectifier.

Christophe Basso, Switch-Mode Power Supplies Spice Simulations and Practical Designs, first edition, McGraw Hill, New York, pp175-212, 2008.

Max5450, Dual Digital Potentiometer for adjustable voltage reference, Maxim Integrated Products, Sunnyvale, CA, 2001,

http://www.maxim-ic.com/datasheet/index.mvp/id/2568/t/al.

LM3478, 2003, High Efficiency Low-Side N-Channel Controller for Switching Regulator, National Semiconductor Corporation, Santa Clara, CA, product folder.

R. Sareban, M. Delshad, E. Borzabadi, Simulation of a New Zero Voltage Switching High Voltage Gain Converter, (2012) International Review on Modelling and Simulations (IREMOS), 5 (4), pp. 1447-1453.

M. Ramesh, A. Jaya Laxmi , Stability Enhancement of HVDC System Using PI Based STATCOM, (2012) International Review of Automatic Control (IREACO), 5 (6), pp. 844-853.

P. Yazdanpanah Qarae, S. Gh. Seifossadat, M. Razaz, M. Joorabian, A New Switching Method, Inverted SPWM for THD, TDD and Interharmonic Reduction in VSC-HVDC , (2012) International Review of Electrical Engineering (IREE), 7 (6), pp. 5970-5976.

Supertex HV748 Four-channel, High speed pulse generator, Supertex Inc. Sunnyvale, CA, http://www.alldatasheet.com/datasheet-pdf/pdf/205340/SUTEX/HV748.html

Basics of Voltage-Level Translation, Texas Instruments, Application Report SCEA040, 2008, www.ti.com

A Low to High Voltage Tolerant Level Shifter for Power Minimization, Arvind Rajput, HarpreetKaur, International Journal of Electronics & Communication Technology, Vol. 2, Issue 3, 2011.

D. Parker, R.M. Lec, H.P. Pendse, J.F. Vetelino, Ultrasonic Sensor for the Characterisation of Colloidal Slurries, IEEE Ultrasonics Symposium, pp.295-2981, 1990.


Refbacks

  • There are currently no refbacks.



Please send any question about this web site to info@praiseworthyprize.com
Copyright © 2005-2024 Praise Worthy Prize