David R. Loker
Assistant Professor of Engineering
Electrical Engineering Technology
Email : drl3@psu.edu
 

Research
 
Articles published in refereed journals:
  1. Abbas F. and D. Loker.   Digital Computer Based Nonlinear Complex Control Systems.  Journal of Computers in Education Division of American Society for Engineering Education.  1(3):31-33  (1991). 
  2. Loker, D.  Communication System Simulation with Tess.  Journal of Computers in Education Division of American Society for Engineering Education.  2(2):74-76 (1992).
  3. Loker, D.  PC Based Applications in Analog Communication System Design. Journal of Computers in Education Division of American Society for Engineering Education.  3(3):6-11 (1993).
  4. Loker, D. and K. Hagenbuch.  Ultrasonic Periodontal Diagnostic Instrumentation System with Clinical Results.  Journal of the International Measurement Confederation. 125-129 (1998).
  5. Ford, R., R. Weissbach and D. Loker.  A Novel DSP-Based LVDT Signal Conditioner.  IEEE Transactions on Instrumentation and Measurement.  50(3):768-773 (2001).
Articles published in refereed proceedings:
  1. Abbas F. and D. Loker.  Digital Computer Based Nonlinear Complex Control Systems.  Proceedings of the Annual Conference of the American Society for Engineering Education.  Toronto, Canada, pp. 961-964 (1990) (co-author) (selected for refereed journal).
  2. Loker, D.  Computer-Aided-Design of Broadband Microwave Circuits. Proceedings of the Third International Symposium on Recent Advances in Microwave Technology.  Reno, NV, pp. 78-81 (1991). 
  3. Loker, D.  Software Simulation for Mixed Analog/Digital Circuit Design. Proceedings of the Annual Meeting, American Society for Engineering Education.  Toledo, OH, pp. 740-744 (1992).
  4. Loker, D.  PC Based Applications in Analog Communication System Design. Proceedings of the Annual Meeting, American Society for Engineering Education.  Toledo, OH,  pp. 617-622 (1992) (selected for refereed journal).
  5. Loker, D.  Amplitude Limiters.  Proceedings of the International Society for Computers and Their Applications.  Washington, DC, pp. 85-88 (1993).
  6. Loker, D.  Infrared Data Communication Techniques.  Proceedings of the Annual Meeting, American Society for Engineering Education.  Urbana, IL, pp. 1819-1825 (1993).
  7. Loker, D.  Microstrip Circuit Design Using Puff.  Proceedings of the Annual Meeting, American Society for Engineering Education.  Urbana, IL, pp. 1118-1124, (1993).
  8. Loker, D. and K. Hagenbuch.  Ultrasonic Instrumentation System. Proceedings of the International Conference on Reliability, Quality Control, and Risk Assessment.  Washington, DC, pp. 101-104, (1994).
  9. Loker, D. and R. Herbold.  Active Filter Design Using Switched Capacitor Circuits.  Proceedings of the Annual Meeting, American Society for Engineering Education.  Anaheim, CA, pp. 1483-1490 (1995).
  10. Loker, D. and T. Russell.  Analog Communications Using Infrared Transmission. Proceedings of the Annual Meeting, American Society for Engineering Education.  (Reference file 154704.PDF on CD-ROM). Washington, D. C., 5 pages (1996).
  11. Loker, D. Using Simulink as A Modeling Tool for FM Communications. Proceedings for the International Association of Science and Technology For Development International Conference on Modeling and Simulation.  Pittsburgh, PA, 359-362 (1997).
  12. Loker, D.  Performance Evaluation of Tonal Feedback Active Noise Cancellation Systems Using the Filtered-X LMS Algorithm.  Proceedings of the International Association of Science and Technology for Development, International Conference on Modeling and Simulation.  Pittsburgh, PA, pp. 104-108 (1998).
  13. Weissbach, R., D. Loker, and R. Ford.  Test and Comparison of LVDT Signal Conditioner Performance.  Proceedings of the 17th IEEE Instrumentation and Measurement Technology Conference.  Baltimore, MD, pp. 1143-1146 (2000).
  14. Ford, R., R. Weissbach, and D. Loker.  A DSP-Based Modified Costas Receiver for LVDT Position Sensors.  Proceedings of the 17th IEEE Instrumentation and Measurement Technology Conference.  Baltimore, MD, pp. 1448-1452 (2000).
  15. Fucik, O., P. Zemcik, D. Loker, R. Ford, and R. Weissbach.  A Flexible DSP Hardware Platform for LVDT Signal Conditioning.  Proceedings of the Electromotion 2001 Conference.  Bologna, IT, pp. 183 - 188 (2001).
  16. Loker., D.  Remote Data Acquisition Using LabVIEW.  Proceedings of the Annual Meeting, American Society for Engineering Education. (Reference session 2259, file 00859.PDF on CD-ROM).  Albuquerque, N.M., 7 pages.  (2001).
  17. Torres, K., D. Loker and R. Weissbach.  Introducing 9-12 Grade Students to Electrical Engineering Technology Through Hands-on Laboratory Experiences. Proceedings of the IEEE Frontiers in Education Annual Conference.  (Reference session F2E, file 1202.PDF).  Reno, NV., 5 pages.  (2001).
Funded Proposals:
 
Development of an Automated Measurement and Detection System for an Ultrasonic Periodontal Probe
Behrend Faculty Research Incentive Grant
$1500
July 1, 1992 - June 30, 1993

LVDT Signal Conditioner
Lord Corporation
R. Ford, D. Loker, and R. Weissbach (Principal investigators)
$5432
May 1999-August 1999
(Funded to Penn State Electrical Design Center, Project Director, R. Ford)

Implementation, Layout, and Prototype Construction of a DSP-Based LVDT Signal Conditioner
Lord Corporation
O. Fucik and D. Loker (Principal investigators)
R. Weissbach Secondary contributor
$7792
October 1999 May 2000
(Funded to Penn State Electrical Design Center, Project Director, R. Weissbach)

Internet-Enabled Data Acquisition & Control
D. Loker and K. Torres (Principle investigators)
Microchip Technology Inc.
$980.00

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