Final Report on Key Comparison CCAUV.U-K3.1
IR@NPL: CSIR-National Physical Laboratory, New Delhi
View Archive Info| Field | Value | |
| Title |
Final Report on Key Comparison CCAUV.U-K3.1
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| Creator |
Julian, Haller
Christian , Koch Rodrigo P.B. , Costa-Felix Kedarnath Dubey, Premshankar Durando, Giovanni Kim, Yong Tae Yoshioka, Masahiro |
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| Subject |
Instruments/ Instrumentation
Applied Physics/Condensed Matter |
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| Description |
In October 2013, during the 9
th
meeting of the CCAUV in Sèvres, France, the result
s of the key comparison
CCAUV.U-K3 were presented and the Draft B report wa
s agreed upon shortly thereafter by email. The
results have also been published in the meantime [1
]. During the meeting it was decided to start a new
comparison CCAUV.U-K3.1 to give all participants of
the preceding loop who delivered discrepant values
the opportunity to perform new measurements. In add
ition, NMIJ was included since the institute could
not take part in CCAUV.U-K3 because of the horrible
earthquake in 2011. Furthermore, NMC A*STAR had
asked for the opportunity to take part, but resigne
d later from the comparison.
The goal of the key comparison was to show the capa
bilities of the participating laboratories to deter
mine
the acoustic radiation conductance of an ultrasonic
transducer by measuring the total time-averaged
ultrasonic power emitted for an applied rms voltage
in the nominal frequency range from 2 MHz to 16 MH
z
and for nominal output power values between 10 mW a
nd 15 W. Although the ultrasound power is the
measurand of the key comparison, the participants w
ere asked to report the radiation conductance which
is independent of the applied voltage and is theref
ore a characteristic property of the transducer at
a
particular frequency. Nevertheless, the key compari
son primarily represents the ultrasound power
measurement capabilities of the participating NMIs
and is suitable for justifying CMC entries of this
variable.
This key comparison was planned and conducted accor
ding to the “Guidelines for CIPM Key Comparisons”
issued by the BIPM [2].
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| Publisher |
IOP Publishing
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| Date |
2016
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| Type |
Article
PeerReviewed |
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| Format |
application/pdf
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| Identifier |
http://npl.csircentral.net/2222/1/Final%20report%20on%20key%20comparison.pdf
Julian, Haller and Christian , Koch and Rodrigo P.B. , Costa-Felix and Kedarnath Dubey, Premshankar and Durando, Giovanni and Kim, Yong Tae and Yoshioka, Masahiro (2016) Final Report on Key Comparison CCAUV.U-K3.1. METROLOGIA , 53 (s). ISSN 0026-1394 |
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| Relation |
http://npl.csircentral.net/2222/
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