Section 6: Test sequences
Model 6517B Electrometer Reference Manual
6-10
6517B-901-01 Rev. C / August 2015
Sweep tests (square wave and staircase)
The sweep tests are not geared to any specific application. These voltage/measure sweeps can be
used for any type of measurement; volts, amps, ohms or coulombs. Thus, make sure to select the
measurement function before running one of these tests.
The square wave sweep test allows you to make a series of measurements at an alternating high and
low voltage level. When the test is configured, you specify the high voltage level (HI-LEVEL), the time
spent at the high level (HI-TIME), the low level voltage (LO-LEVEL), the time spent at the low level
(LO-TIME), and the number of cycles to repeat (CYCLE COUNT). The following figure shows an
example using the default test parameters. When the test is run, 20 measurements are performed (at
each high and low level) and stored in the buffer. This test is selected and configured from the
CONFIGURE SEQUENCE
menu (SWEEP; STAIRCASE).
Figure 75: Square wave sweep test default measurement points
The staircase sweep test allows you to make measurements at staircased voltage levels. When the
test is configured, you specify the START voltage, the STEP voltage, the STOP voltage and the delay
(STEP TIME) between steps. The following figure shows an example using the default test
parameters.
When the test is run, 10 measurements are performed (one at each voltage step) and stored in the
buffer. This test is selected and configured from the
CONF
igure
SEQUENCE
menu (SWEEP;
STAIRCASE).
