Jove
Visualize
Contact Us
JoVE
x logofacebook logolinkedin logoyoutube logo
ABOUT JoVE
OverviewLeadershipBlogJoVE Help Center
AUTHORS
Publishing ProcessEditorial BoardScope & PoliciesPeer ReviewFAQSubmit
LIBRARIANS
TestimonialsSubscriptionsAccessResourcesLibrary Advisory BoardFAQ
RESEARCH
JoVE JournalMethods CollectionsJoVE Encyclopedia of ExperimentsArchive
EDUCATION
JoVE CoreJoVE BusinessJoVE Science EducationJoVE Lab ManualFaculty Resource CenterFaculty Site
Terms & Conditions of Use
Privacy Policy
Policies

Related Concept Videos

You might also read

Related Articles

Articles linked to this work by shared authors, journal, and citation graph.

Sort by
Same author

Pressure reciprocity calibration of a MEMS microphone.

The Journal of the Acoustical Society of America·2017
Same author

In-situ Attenuation Corrections for Radiation Force Measurements of High Frequency Ultrasound With a Conical Target.

Journal of research of the National Institute of Standards and Technology·2016
Same author

Long-Term Stability of the NIST Standard Ultrasonic Source.

Journal of research of the National Institute of Standards and Technology·2016
Same author

New Measurement Service for Determining Pressure Sensitivity of Type LS2aP Microphones by the Reciprocity Method.

Journal of research of the National Institute of Standards and Technology·2016
Same author

MR imaging of inflammation during myelin-specific T cell-mediated autoimmune attack in the EAE mouse spinal cord.

Molecular imaging and biology·2009
Same author

Down-modulation of programmed death 1 alters regulatory T cells and promotes experimental autoimmune encephalomyelitis.

Journal of neuroscience research·2009

Related Experiment Video

Updated: Mar 24, 2026

In Situ Soil Moisture Sensors in Undisturbed Soils
08:20

In Situ Soil Moisture Sensors in Undisturbed Soils

Published on: November 18, 2022

7.8K

Long-Term Stability of the NIST Conical Reference Transducer.

Steven E Fick1, Thomas M Proctor1

  • 1National Institute of Standards and Technology, Gaithersburg, MD 20899.

Journal of Research of the National Institute of Standards and Technology
|March 19, 2016
PubMed
Summary

The National Institute of Standards and Technology (NIST) Conical Reference Transducer (CRT) demonstrates excellent long-term stability. Redetermined sensitivities in 2009 matched 1985 data, confirming decades of reliable performance for acoustic emission testing.

Keywords:
PZTacoustic emissionlong term stabilityreference transducertransfer standard

More Related Videos

Four-Dimensional Computed Tomography-Guided Valve Sizing for Transcatheter Pulmonary Valve Replacement
09:57

Four-Dimensional Computed Tomography-Guided Valve Sizing for Transcatheter Pulmonary Valve Replacement

Published on: January 20, 2022

3.3K
Scanning Light Scattering Profiler SLPS Based Methodology to Quantitatively Evaluate Forward and Backward Light Scattering from Intraocular Lenses
06:55

Scanning Light Scattering Profiler SLPS Based Methodology to Quantitatively Evaluate Forward and Backward Light Scattering from Intraocular Lenses

Published on: June 6, 2017

8.0K

Related Experiment Videos

Last Updated: Mar 24, 2026

In Situ Soil Moisture Sensors in Undisturbed Soils
08:20

In Situ Soil Moisture Sensors in Undisturbed Soils

Published on: November 18, 2022

7.8K
Four-Dimensional Computed Tomography-Guided Valve Sizing for Transcatheter Pulmonary Valve Replacement
09:57

Four-Dimensional Computed Tomography-Guided Valve Sizing for Transcatheter Pulmonary Valve Replacement

Published on: January 20, 2022

3.3K
Scanning Light Scattering Profiler SLPS Based Methodology to Quantitatively Evaluate Forward and Backward Light Scattering from Intraocular Lenses
06:55

Scanning Light Scattering Profiler SLPS Based Methodology to Quantitatively Evaluate Forward and Backward Light Scattering from Intraocular Lenses

Published on: June 6, 2017

8.0K

Area of Science:

  • Materials Science
  • Acoustics
  • Metrology

Background:

  • The National Institute of Standards and Technology (NIST) developed the Conical Reference Transducer (CRT) for advanced acoustic emission (AE) nondestructive testing.
  • CRTs offer superior frequency response uniformity compared to conventional ultrasonic transducers.
  • The CRT was commercially available from 1985 to 2000, supplied with detailed frequency-dependent sensitivity data.

Purpose of the Study:

  • To assess the long-term stability of NIST Conical Reference Transducer (CRT) characteristics.
  • To validate performance claims regarding the durability and reliability of CRTs over extended periods.
  • To compare transducer sensitivity data from 1985 with measurements taken in 2009.

Main Methods:

  • Eight NIST CRTs, stored under controlled laboratory conditions since 1985, were re-tested in 2009.
  • Transducer sensitivity was measured as a function of frequency (volts per micrometer of normal displacement).
  • Sensitivity data from 1985 and 2009 were statistically compared.

Main Results:

  • The 2009 sensitivity measurements showed remarkable agreement with the original 1985 data for the tested CRT units.
  • This consistency confirms the minimal degradation of transducer performance over 24 years.
  • The results directly support the manufacturer's claim of expected service life of decades with proper care.

Conclusions:

  • The NIST Conical Reference Transducer (CRT) exhibits exceptional long-term operational stability.
  • Proper storage and handling ensure that CRTs maintain their high-performance characteristics for many years.
  • These findings are crucial for the continued reliable application of CRTs in acoustic emission nondestructive testing.