Andeen-Hagerling
Observe:
Andeen-Hagerling AH 11A Capacitance Standard
Art.no 1390Fused-silica capacitance standard with user-selectable values up to 115 pF, very high long-term stability, extremely low loss and NIST-traceable calibration.
Andeen-Hagerling 1100 Capacitance Standard Frame
Art.no 1389Capacitance standard frame for 1–4 AH 11A standards, selectable values 0.1–115 pF, stability
Andeen-Hagerling AH2550A Capacitance And Loss Bridge
Art.no 12941 kHz automatic measurement, accuracy 5 ppm, resolution 0.5 aF, extremely low loss down to 1.5×10⁻⁸ tan δ, three-terminal BNC and GPIB/RS-232.
Andeen-Hagerling AH2700A Capacitance And Loss Bridge
Art.no 103350 Hz–20 kHz measurement range, extremely low loss down to 1.5×10⁻⁸ tan δ, fast measurements from 30 ms, three-terminal BNC, auto-ranging and GPIB/serial interface.