Welcome to the final Dynamic Sensors & Calibration Tips of the year. We appreciate the opportunity to serve you through quality products and service excellence. We hope this December finds your business thriving as we all look to 2017. Please accept our best wishes this holiday season to you for Peace, Health and Prosperity in the New Year...
Selecting a Reference Accelerometer for Calibration
By Mike Dillon, Calibration Team Leader
A successful accelerometer calibration program relies upon:
selection of the best components of the calibration system
a disciplined approach
outreach to the metrology community for technical standards and interlaboratory comparison
The following article informs the decision of choosing a reference accelerometer, a key system component.
For shock impulse calibrations, it is important to use pulse durations of moderate width - not too long or not too short. For shock accelerometers, we target a pulse width of at least 100 microseconds to best stay within the useable bandwidth of typical shock accelerometers.
Blast from the Past:
International System of Reference Units
No matter if you are a technician, engineer or physicist, it is important to be familiar with the International System of Units (SI units) while communicating and reporting test results, measurements and calibration data. A concise 4-page version of the International System of Units is available on line through the BIPM web site, and provides a good reference document on the topic.
Marco Peres, a sound and vibration engineer at The Modal Shop, notes that:
"Interestingly enough, in our community, vibration data is commonly reported in units of g, instead of meter per second squared (m/s2), the official SI units of acceleration."
Thanks for joining us for another issue of
Dynamic Sensors & Calibration Tips. As always, please speak up and
let us know what you like. We appreciate all feedback: positive, critical or otherwise. Take care!
Sincerely,
Aaron Goosman - Eric Seller -
Mike Dillon - Patrick Timmons - Shannon Henize
