I.S. EN 60444-2:1999
Current
The latest, up-to-date edition.
MEASUREMENT OF QUARTZ CRYSTAL UNIT PARAMETERS BY ZERO PHASE TECHNIQUE IN A PI-NETWORK - PHASE OFFSET METHOD FOR MEASUREMENT OF MOTIONAL CAPACITANCE OF QUARTZ CRYSTAL UNITS
12-01-2013
For Harmonized Standards, check the EU site to confirm that the Standard is cited in the Official Journal.
Only cited Standards give presumption of conformance to New Approach Directives/Regulations.
Dates of withdrawal of national standards are available from NSAI.
Committees responsible
National foreword
Method
1 Scope
2 Principle of measurement
3 Measuring circuit
4 Method of measurement
5 Measurement errors
6 Other measuring methods
Appendix
A
Figures
1 Equivalent circuit of a quartz crystal unit
2 Measuring circuit
3 Phase and impedance characteristics of a quartz crystal
unit in the vicinity of resonance
4 Deviation of C1 as a function of Rr for various error
conditions
5 Deviation of C1 as a function of measured phase angle error
and different phase angles
6 The effect of parallel capacitance CO on the measurement
accuracy C1 versus measured phase angle
Annex ZA (normative) Normative references to international
publications with their corresponding European publications
Access your standards online with a subscription
Features
-
Simple online access to standards, technical information and regulations.
-
Critical updates of standards and customisable alerts and notifications.
-
Multi-user online standards collection: secure, flexible and cost effective.