BS 7681-2(1993) : 1993 AMD 9658
Superseded
A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.
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MEASUREMENT OF QUARTZ CRYSTAL UNIT PARAMETERS BY ZERO PHASE TECHNIQUES IN A x-NETWORK - PHASE OFFSET METHOD FOR MEASUREMENT OF MOTIONAL CAPACITANCE OF QUARTZ CRYSTAL UNITS
15-10-1997
23-11-2012
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
Describes a method of measuring the motional capacitance of quartz crystal units in the 1 MHz to 125 MHz frequency range with a total measurement error of the order of 5%. Also includes detailed diagrams. AMD 9658 RENUMBERS THIS STANDARD
| Committee |
ECL/11
|
| DevelopmentNote |
Renumbered and superseded by BS EN 60444-2 (11/2005)
|
| DocumentType |
Standard
|
| PublisherName |
British Standards Institution
|
| Status |
Superseded
|
| SupersededBy |
| Standards | Relationship |
| IEC 60444-2:1980 | Similar to |
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