What is BS EN 60689 – Measurement and test methods for tuning fork quartz crystal units about?
BS EN 60689 is an international standard that focuses on measurement and test methods for tuning fork quartz crystal units.
BS EN 60689 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.
BS EN 60689 stipulates the technicalities such as applied frequency range, measurement of frequency- temperature characteristics, measurement conditions, measurement method including methods A and B, test and environmental examination, etc., for tuning fork quartz crystal units.
Who is BS EN 60689 - Measurement and test methods for tuning fork quartz crystal units for?
BS EN 60689 on measurement and test methods for tuning fork quartz crystal units is useful for:
- Clock and watch manufacturing companies
- Computer system assembly unit
- Service providers for watches
- Test conductors for the quartz crystal units
- Electronic equipment manufacturing unit
Why should you use BS EN 60689 - Measurement and test methods for tuning fork quartz crystal units?
Tuning fork quartz crystals are very popular crystal designs used for many years, to control time in watches, clocks, and in computers and other electronic equipment in recent time. in Real-Time Clock (RTC), in recent times.
BS EN 60689 presents you with the measurement method, that gives a copy of a block diagram (including a load capacitance), test fixture (for Surface Mounted Device-units included) with additional values of the resistances for high impedance value (standard PI-network 25 Ω) and hardware requirements for a frequency range from 10 kHz to 200 kHz. This helps users to follow and conduct the test methods accurately as per the given instructions.
BS EN 60689 sets out an approach for checking the QTF (Quartz Tuning Fork) intrinsic properties, as well as the environmental conditions. This proves very helpful to the users as the intrinsic properties are physical features and present long-term stability, whereas the environmental conditions are prone to quick variations. Thus, the effect of these on the resonance frequency f0 and the quality factor Q of the QTF can be individually quantified.
