This International Standard specifies the basic parameters, requirements, and testing methods of timing accuracy for analogue quartz clocks, hereinafter referred to as \u201cthe quartz clock\u201d.<\/p>\n
This International Standard applies to analogue quartz table and wall clocks which the oscillator frequency is 32 768 Hz and the nominal voltage is DC 1,5 V. Analogue quartz clock movements can refer to it.<\/p>\n
This International Standard does not apply to the following quartz clocks:<\/p>\n
clocks for particular applications such as clocks used in aircraft, ship, vehicle, and facilities;<\/p>\n<\/li>\n
clocks incorporated into other products;<\/p>\n<\/li>\n
clocks in which time is radio-synchronized.<\/p>\n<\/li>\n<\/ul>\n
| PDF Pages<\/th>\n | PDF Title<\/th>\n<\/tr>\n | ||||||
|---|---|---|---|---|---|---|---|
| 6<\/td>\n | Foreword <\/td>\n<\/tr>\n | ||||||
| 7<\/td>\n | Introduction <\/td>\n<\/tr>\n | ||||||
| 9<\/td>\n | 1\tScope 2\tTerms and definitions 3\tBasic parameters and requirements of timing accuracy 3.1\tMean instantaneous rate, \ufffc 3.2\tVoltage coefficient, CU <\/td>\n<\/tr>\n | ||||||
| 10<\/td>\n | 3.3\tTemperature coefficient, Ct 4\tTest methods 4.1\tTest conditions 4.1.1\tTest environment 4.1.2\tPower supply 4.1.3\tPre-running 4.2\tTest apparatus 4.3\tTesting 4.3.1\tMean instantaneous rate, \ufffc <\/td>\n<\/tr>\n | ||||||
| 11<\/td>\n | 4.3.2\tVoltage coefficient, CU 4.3.3\tTemperature coefficient, Ct <\/td>\n<\/tr>\n | ||||||
| 13<\/td>\n | Annex\u00a0A (informative) Main factors affecting the timing accuracy <\/td>\n<\/tr>\n | ||||||
| 14<\/td>\n | Annex\u00a0B (informative) Timing accuracy expressions of quartz clocks <\/td>\n<\/tr>\n | ||||||
| 15<\/td>\n | Bibliography <\/td>\n<\/tr>\n<\/table>\n","protected":false},"excerpt":{"rendered":" Analogue quartz clocks. Timing accuracy<\/b><\/p>\n |