prBAS EN IEC 60444-11:2027
Measurement of quartz crystal unit parameters - Part 11: Standard method for the determination of the load resonance frequency fL and the effective load capacitance CLeff using automatic network analyzer techniques and error correction
General information
Status:Project
Number of pages:27
Adoption method:Proglašavanje
Language:engleski
Edition:1.
Realization date:29.10.2026
Forseen date for next stage code:15.11.2026
Technical committee:BAS/TC 10, Electrical energy measurement equipment and load control
ICS:
31.140, Piezoelectric devices
Abstract
IEC 60444-11:2026 defines the standard method of measuring load resonance frequency fL at the nominal value of CL, and the determination of the effective load capacitance CLeff at the nominal frequency for crystals with the figure of merit M > 4.
This edition includes the following significant technical changes with respect to the previous edition:
a) key content of withdrawn IEC TR 60444-4 is reproduced as Annex A;
b) some formulae in the first edition have been corrected.
Lifecycle
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Original document and degree of correspondence
EN IEC 60444-11:2026, identical
IEC 60444-11:2026, identical
Relation to BAS standards
Work material
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