• The Tinsley Group Limited

Capacitance Standards

The AH 1100 capacitance standard frame containing from one to four AH 11A fused-silica capacitance standards provides reference capacitors of unexcelled stability. The inherent stability of this Andeen-Hagerling system when subjected to mechanical or thermal shock makes it the ideal transfer standard for capacitance. The built-in precision temperature controllers make it a simple, reliable system to use. These are the only standards currently sold that are sufficiently accurate to calibrate the AH 2500A capacitance bridge to the limits of its specifications. 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 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; AC voltage coefficient is less than 0.003 ppm/volt; DC voltage co