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Capacitance Standard

AH 1100 Capacitance Standard Frame, AH 11A Fused-Silica Capacitance Standardion: Outstanding Features: Any capacitance value in the range from 0.1 pF to 115 pF may be ordered. Stability of larger capacitors is better than 0.3 ppm/year. Temperature coefficient of the capacitance with respect to 4 Changes in ambient temperature is less than 0.01 ppm/°C. Hysteresis resulting from temperature cycling is less than 0.05 ppm. Hysteresis resulting from mechanical shock is less than 0.05 ppm. 4. Power line sensitivity is less than 0.0003 ppm per 1% change in power line voltage. Dissipation factor is less than 0.000 003 tan delta. Three year warranty The user-selected capacitance value is set at the factory to a NIST traceable accuracy of 2 ppm at 1 kHz. The built-in precision oven in each AH 11A uses a dual temperature sensor system which provides increased reliability and confidence. The AH 1100 frame provides monitoring of critical temperature control parameters such as the differences within the dual temperature sensors in each standard. Each AH 11A standard can be easily removed from the AH 1100 frame. Their small size and light weight make them easy to ship for calibration. Shipping is simple since continuous temperature control of the ovens is not needed to maintain the stability specification. The fused-silica element is hermetically sealed in dry nitrogen. Three-terminal BNC connections minimize connector costs and number of cables. [1] in commercial production.

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