BS 7681-1(1993) : 1993 AMD 9657
Superseded
A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.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 - BASIC METHOD FOR THE MEASUREMENT OF RESONANCE FREQUENCY AND RESONANCE RESISTANCE OF QUARTZ CRYSTAL UNITS BY ZERO PHASE TECHNIQUE IN A X-NETWORK
15-10-1997
23-11-2012
Committees responsible
National foreword
Method
1 Scope
2 Definition of resonance frequency
3 Reference plane and shielding box
4 Principle of measurement
5 Measuring circuit
5.1 The pi-network
5.2 Accessories of the pi-network
5.3 Associated equipment
6 Method of measurement
6.1 Initial calibration of the pi-network
6.2 Frequency and resistance measurement
Appendix
A Additional information on accuracy
Specifies a simple method of measurement of resonance frequency and resonance resistance of quartz crystal units; also describes a suitable measuring network. Deals with a measuring method and a network that can be used over the frequency range 1 MHz to 200 MHz. Coverage includes: definition of resonance frequency; measuring circuit; reference plane and shielding box; frequency and resistance measurement. AMD 9657 RENUMBERS THIS STANDARD
| Committee |
ECL/11
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| DevelopmentNote |
Renumbered and superseded by BS EN 60444-1. Supersedes 97/202227 DC. (04/2005)
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| DocumentType |
Standard
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| PublisherName |
British Standards Institution
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| Status |
Superseded
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| SupersededBy | |
| Supersedes |
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