Dr. Premshankar Kedarnath Dubey
Sr. Scientist
Physico-Mechanical Metrology
Email address:
Brief Biodata:

Office :

Room - 139, Acoustics, Ultrasonics and Vibration,
Standards, National Physical Laboratory,
Dr K. S. Krishnan Marg, New Delhi, 110 012 (INDIA)
Phone: +91-11-45608380, Mob: +91 9968408417

Senior Scientist

Keenly interested in design and development of scientific instruments with improved parameters. Presently, working as senior scientist in Acoustics, Ultrasonics, Vibration Standards at CSIR-NPL, India and holding major responsibility in design and development of non-contact ultrasonic material testing instrumentation system using EMAT. The main objective is to measure the time of flight (TOF) with highest possible resolution better than 1 nano seconds.

Area of Expertise

  • Electronic instrument design

  • Ultrasonic instrumentation

  • PC interfacing with circuits

  • Graphical User Interface (GUI) design

  • Software development using LabVIEW,
    VB, C

  • Developing measurement techniques

  • Component testing

  • Trouble shooting and fault finding

  • Opto-electronic instrumentation

  • Instrument cabinet design

Educational Record

Ph.D. Ultrasonic Instrumentation R.T.M. Nagpur University, Nagpur, India
NET Electronic Science UGC
M.Sc. Electronics (Instrumentation) Nagpur University

Professional Experience

Place of Work

Area of experience


Period (Dates)



Ultrasonics Division,

National Physical

Laboratory (CSIR-NPL), New

Delhi, India


Ultrasonic Standards and working for the improvements

Senior Scientist

May 2012


SMM College of Science,

Nagpur University College

Teaching B.Sc.

Electronics and


Assistant Professor

Aug 2010

May 2012

Ultrasonics Division,

National Physical

Laboratory (NPL), New

Delhi, India


Instrumentation and


CSIR- Research


April 2009

July 2010

RASD, National Physical

Laboratory (NPL), New

Delhi, India

LIDAR design and development

Research Associate (Project)

April 2008

march 2009

RASD, National Physical

Laboratory (NPL), New

Delhi, India

LIDAR design and development

S. R. F.



April 2008

Professional Experience

  • Unique Micro pulse lidar (commonly known as laser radar) with dual polarization detection facility has been indigenously developed at NPL, India. The lidar system has Best vertical resolution of 75 cm.

  • Novel Single PMT based dual polarization detection technique developed at NPL, India and successfully applied to the developed micro pulse lidar.

  • Established EMAT based non contact NDT facility at NPL, India

  • Technique invented to measure the ultrasonic velocity with improved accuracy in pulse echo setup.

  • Developed Electromagnetic Acoustic Transducer (EMAT) for non-contact testing of conducting materials

Research Publications

Journal Publications

No. of Publications 13
SCI Journals 11
Non-SCI Journals 02

Papers Presented at the Conference 30+