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Understand Back-to-Back Calibration limitations. Do not
expect the uncertainty of calibration to be any better than
2%. (In fact, the uncertainty may be as high as 3% or
4% for frequencies <10 Hz or >2 kHz.) Since large
sensors may affect high-frequency accuracy, verify that
the test sensor does not mass load the reference standard.
Validate
your
calibration
accelerometer prior to each calibration session. Check
with the manufacturer for exact system specifications.
8.5 CONCLUSIONS
Without an adequate understanding of dynamics,
determining what, when, and how to test a sensor is a
difficult task. Therefore, each user must weigh the cost,
3425 Walden Avenue, Depew, NY 14043-2495 USA Vibration Division toll-free 888-684-0013
24-hour SensorLine
© 2018 PCB Piezotronics, Inc. In the interest of constant product improvement, specifications are subject to change
without notice. PCB®, ICP®, Swiveler®, Modally Tuned®, and IMI® with associated logo are registered trademarks
of PCB Piezotronics, Inc. in the United States. ICP® is a registered trademark of PCB Piezotronics Europe GmbH in
Germany and other countries. UHT-12™ is a trademark of PCB Piezotronics, Inc. SensorLine℠ is a service mark of
PCB Piezotronics. Inc. SWIFT® is a registered trademark of MTS Systems Corporation in the United States.
Manual Number: 32258
ECN
Number: 49096
system
with
another
SM
716-684-0001 FAX 716-685-3886 E-mail sales@pcb.com Website www.pcb.com
ISO 9001 CERTIFIED
time, and risk associated with self-calibration versus
utilizing the services of an accredited laboratory.
9.0 SERVICE
See the supplement sheet, contained in this manual, for
information on our warranty, service, repair, and return
policies and instructions.
When unexpected measurement problems arise, call our
SM
24-hour SensorLine
instrumentation needs with a factory representative.
Dial 716-684-0001.
A2LA ACCREDITED to ISO 17025
8
to discuss your immediate dynamic
VIB-High Sensitivity DC MANUAL-
Printed in U.S.A Manual Revision:
B
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