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Issue 126
We welcome you back to another issue of Dynamic Sensors & Calibration Tips. Learn about the Basics of Acoustic Calibration via a webinar on demand from the acoustic experts at PCB Piezotronics. We also invite you to explore topics in an upcoming webinar series produced by PCB. More information is below!
Basics of Acoustic Calibration Webinar
By Dr. Chad Walber

In this 45-minute webinar, Dr. Chad Walber - Research & Development at PCB Piezotronics - discusses why single point microphone sensitivity should be performed at the beginning and end of every experiment. Due to the design of condenser microphones, large changes in atmospheric pressure, temperature, and humidity will have an effect on the sensitivity of a microphone. Dr. Walber shares best practices in the use of precision acoustic calibrators, including proper calibration techniques, expected calibration accuracy, and methods of calibration improvement.

Tip of the Month
Continuing Education with Acoustic Webinars
 
In addition to the on demand webinar above, PCB Piezotronics is offering a series of Acoustic Webinars, beginning June 21st. You can learn more on www.pcb.com/training  - or by clicking the links below:
 
Historically, the limiting factors in low frequency accelerometer calibration were a combination of the limited stroke length of electrodynamic shakers providing limited acceleration levels at declining low frequencies, and the limited resolution of the piezoelectric reference accelerometer in the presence of the sensor's rising electric floor. By adopting and applying proven technologies in a novel combination, it is now possible for improved simplicity and reduced measurement uncertainties of dynamic vibration calibration at very low frequencies. The commercially available combination of a high accuracy optical displacement reference and ultra-long stroke (>250 mm stroke) calibration grade linear actuator has created a new standard in ultra-low frequency calibration.
 
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 -  Lilian Golan  - Jesse Coy
Julie Dwyer - Mike Dillon -  Patrick Timmons -  Shannon Henize 

Calibration Team
The Modal Shop
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