Tal R. Nagourney

Tal R. Nagourney, Ph.D., P.E., CFEI

Senior Staff Consultant

Dr. Tal Nagourney is an electrical engineer specializing in fire investigation and failure analysis of consumer electronics, appliances, batteries, USB devices, and semiconductor devices. He conducts scientific investigations to guide critical decisions.

His expertise is built on a foundation of research and experimental design from his doctoral studies in micro-electro-mechanical systems. As a forensic electrical engineer, he leverages this experience to lead an effective investigation, identify the root cause, and present the findings clearly to any audience.

In the field, Dr. Nagourney thoroughly documents the scene and ensures critical evidence is collected. In the laboratory, he performs meticulous testing to identify issues with design, manufacturing, and usage. His experience with failures lends itself to design review, and he helps his clients avoid product failures that elude typical safety standard testing.


  • The Implications of Post-Fire Physical Features of Cylindrical 18650 Lithium-Ion Battery Cells, Fire Technology, January 2021
  • Laser Self-Mixing Interferometry for Precision Displacement Measurement in Resonant Gyroscopes, IEEE Int. Symp. on Inertial Sensors and Systems (INERTIAL), January 2019
  • Simulation Based Approach for Fabrication of Micro-Shell Resonators with Controllable Stiffness and Mass Distribution, IEEE International Symposium on Inertial Sensors and Systems, January 2018
  • Fabrication of Hemispherical Fused Silica Micro-Resonator with Tailored Stiffness and Mass Distribution, 31st IEEE International Conference on Micro Electro Mechanical Systems, January 2018
  • Thermoelastic Dissipation in Micromachined Birdbath Shell Resonators , J. Microelectromech. Syst. Vol 26, No. 4, August 2017
  • Simulation of Blowtorch Reflow of Fused Silica Micro-Shell Resonators, J. Microelectromech. Syst. Vol 26, No. 4
  • 259 Second Ring Down Time and 4.45 Million Quality Factor in 5.5 kHz Fused Silica Birdbath Shell Resonator in Transducers, 19th International Conference on Solid State Sensors, Actuators and Microsystems, January 2017
  • Numerical Study of Impact of Surface Roughness on Thermoelastic Loss of Micro-Resonators, IEEE International Symposium on Inertial Sensors and Systems, January 2017
  • Effect of Drive-Axis Displacement on MEMS Birdbath Resonator Gyroscope Performance, IEEE International Symposium on Inertial Sensors and Systems, January 2017
  • Anchor Loss in Hemispherical Shell Resonators, J. Microelectromech. Syst., vol. 25, no. 1, February 2017
  • See CV for further publications

ESi's expertise spans dozens of industries and specializations organized across several practice groups, each staffed by dozens of in-house experts with the technical knowledge, hands-on expertise, and courtroom experience required to execute projects for and with our clients from start to finish.

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