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Ultra Precision Capacitance Bridge

Ultra Precision Capacitance Bridge offers unparalleled stability, resolution, linearity and accuracy in a multi-frequency capacitance/loss bridge (whether manual or automatic). AH offers following models: 1) AH 2700A, 50 Hz - 20 kHz Ultra-precision Capacitance/Loss Bridge (option of discrete and continous frequency from 50 Hz to 20kHz) 2) AH 2550A, 1kHz Automatic Capacitance Bridge Outstanding Features : Measures extremely low loss down to a dissipation factor of 1.5x10-8 tan d, a conductance of 3x10-7 nanosiemens or a resistance up to 1.7x106 gigohms As little as 0.4 second required for full precision measurements and as little as 30 ms required for repeated measurements on the same sample Fast analog output has a frequency response of 3 kHz at 3 dB down Negative capacitance and loss ranges measure negative values to allow for unusual samples or three terminal networks Commutation (test signal reversal) to minimize external power line or other periodic signal pickup Three terminal BNC connections minimize connector costs and number of cables IEEE-488 GPIB and IEEE-1174 serial interfaces included; remote device can act as controller or logger Programmability can eliminate the need for an external controller Large, variable-brightness displays having 8 digits for capacitance and loss and 5 digits for frequency Deviation measurements of capacitance, loss or both Zero correction of test fixture capacitance and loss External DC bias up to ±100 volts External trigger capability NIST or NPL traceable calibration Autoranging Automatic internal calibration Self-test diagnostics on power-up and by command Three year warranty