Dynamic Sensors and Calibration Expertise

Metrology Leadership

The Modal Shop and PCB Piezotronics' commitment to dynamic sensor and calibration leadership is anchored by doctoral and technical fellow-level industry professionals at multiple technology centers across the world. These technology centers are in constant contact to support the interwoven nature of new sensing technology, production calibration and system development and are available to assist you.


Jeff Dosch Ph.D.
(20+ years expertise in piezoelectric and capacitive sensor design and calibration)
PCB Piezotronics, New York

  • Sensor Design Engineer and Calibration System Specialist for 15 years at PCB’s Technology Center
  • Doctor of Science in Vibration Control bringing an in-depth knowledge of sensor and system function
  • Published multiple technical papers including:
    • “Hopkinson Bar Acceptance Testing for Shock Accelerometers”
    • “Automated Testing of Accelerometer Transverse Sensitivity”
    • “A Heterodyne Laser Interferometer for Primary Calibration of Accelerometers”
    • “Primary Calibration of Accelerometer Complex Sensitivity by Laser Interferometry”
    • “Low Frequency Accelerometer Calibration Using Earth’s Gravity”
    • “Air Bearing Shaker for Precision Calibration of Accelerometers

Patrick Timmons
(8+ years focus on dynamic sensors, metrology, and mechanical excitation systems)
The Modal Shop, Inc. an Amphenol Corporation, Ohio

  • Calibration systems engineer facilitating the development, improvement, and support of dynamic calibration systems
  • Expertise in the design of low frequency vibration calibration exciters utilizing linear motor technology
  • Participates via papers and presentations on calibration and calibration system development at vibration and metrology conferences
  • Thousands of hours of on-site instruction on theory and operation of calibration systems and laboratory practices at aerospace, defense, automotive, industrial, and metrology facilities around the world

Dr. Ing. Carmine Salzano
(25+ years expertise in vibration control, structural analysis and environmental stress screening)
PCB Piezotronics, New York

  • International Aerospace Defense Manager at PCB Italy for 6 years
  • Doctor of Science in Engineering
  • Employed by Brüel & Kjaer for 14 years as Sales Engineer and later Aerospace Defense Manager
  • Attended Nation Science Foundation/European Science Foundation Workshop on smart structures and advanced sensing
  • Expertise in sensing technology for vibration, acoustics, pressure, force, torque and strain measurements
  • Member of European Acoustic Association (EAA: 99-02), Acoustic Italian Association (AIA: 91-05), American Institute of Aeronautics and Astronautics (AIAA: 08-present)
  • Presents at multiple Aerospace Conferences around the world
  • Published multiple technical papers including:
    • “Noise and Vibration Levels in Homes and the Workplace”
    • “Noise and Acoustic Insulation”
    • “An Introduction to Passive Building Requirements and Predictive Models”
    • “Dynamic Strain Sensor”
    • “Accelerometers for Health and Usage Monitoring of Helicopters”

Dr. Pat Walter
(40+ years expertise in dynamic sensing, instrumentation and calibration)
Consultant to PCB Piezotronics, Texas

  • Professor at Texas Christian University (TCU) in the solid mechanics and advanced vibration areas
  • Previously worked at Sandia National Laboratory managing metrology and structural test laboratories, instrumentation development for ground and flight testing, and development and fielding of rocket flight systems and payloads
  • Served and chaired Department of Defense (DoD) and Department of Energy (DoE) committees and consults extensively in the aerospace and defense industries
  • Member of Institute of Environmental Sciences and Technology (IEST) for 25 years
  • Received Lifetime Achievement Award from Shock and vibration Information Analysis Center (SAVIAC)
  • Published multiple technical papers including:
    • “Instrumentation System Rise Time for Shock and Blast Measurements”
    • “A History of the Origin and Evolution of Modal Transducers”
    • “Measurement System Design and Evolution”
    • “A Mechanical, Pneumatic System to Perform In Situ Calibration of Blast Transducers”
    • “Lessons Learned in Applying Accelerometers to Nuclear Effects Testing”
    • “Air-Blast and the Science of Dynamic Pressure Measurements”
    • “Dealing with Measurement Uncertainty”
    • “The History of the Accelerometer, Sound and Vibration"

The Modal Shop also employs a team solely focused on calibration. Staffing consists of Software Engineers, Senior Application Software Developer, System Installation and Design Engineers, Customer Service Representatives and Product Group Manager. The extensive experience of the team forms the foundation for world class customer service and product support not available from any other calibration company.