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Superseded
A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.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
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