Measurement and test methods for tuning fork quartz crystal units in the range from 10 kHz to 200 kHz and standard values
文件核验信息(付费前可核对)
标准范围(官方英文摘要)
IEC 60689:2008 applies to measurements and test methods for tuning fork quartz crystal units in the range from 10 kHz to 200 kHz and standard values for frequency control and selection.
This edition includes the following significant technical changes with respect to the previous edition:
a) The title of the first edition is Measurements and test methods for 32 kHz quartz crystal units for wrist watches and standard values. The title is modified and the frequency range of this second edition is extended to the range from 10 kHz to 200 kHz.
b) The Lissajous method is defined in the first edition as the standard measurement method. The PI network and bridge method are used in this second edition.
c) The PI network has a transformer for impedance matching. This composition differs from that of IEC 60444-1.
标准信息
- 标准号
- IEC 60689:2008
- 英文标题
- Measurement and test methods for tuning fork quartz crystal units in the range from 10 kHz to 200 kHz and standard values
- 发布单位
- —
- 技术委员会
- TC 49
- 版本 / 版次
- 2.0
- 状态
- 现行
- 发布日期
- 2008
- ICS 分类
- 31.140 频率控制和选择用压电器件与介质器件
- 页数
- 37 页
- 官方定价
- CHF 115
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