Nm. Oldham et Ps. Hetrick, CHARACTERIZED GENERATOR EXTENDS PHASE METER CALIBRATIONS FROM 50 KHZ TO 20 MHZ, IEEE transactions on instrumentation and measurement, 42(2), 1993, pp. 311-313
A phase-angle generator made by phase locking two function generators
is described. The generator produces two sine waves that are programma
ble in phase (0-360-degrees), amplitude (0-40 V(rms)), and frequency (
< 1 Hz - 20 MHz). Phase linearities within +/-0.1-degrees are achieved
without external phase standards.