HP 8167A, Руководство пользователя, Страница: 98 / 262

5
Example OUTPUT 724;":WAVE:REF:STAT OFF"
OUTPUT 724;":WAVE 1542E-9"
OUTPUT 724;":WAVE?"
ENTER 724;A$
[:SOURce]:W A VElength:REF erence?
Syntax [:SOURce ]:WAVElength:REFerence?
Description The query returns the reference wavelength (
0
) in meters .
Example OUTPUT 724;":WAVE:REF?"
ENTER 724;A$
[:SOURce]:W A VElength:REF erence:DISPlay
Syntax [:SOURce ]:WAVElength:REFerence:DISPlay
Description This command sets the reference wavelength to the value of the
output wavelength (!
0
).
Example OUTPUT 724;":WAVE:REF:DISP"
[:SOURce]:W A VElength:FREQuency
Syntax [:SOURce ]:WAVElength:FREQuency <wsp> <value>
Description This command sets the frequency dierence used to calculate
a relative wavelength. The output wavelength is made up
of the reference wavelength and this frequency dierence .
The default units for the frequency are Hertz. The output
wavelength () is set from the base wavelength (
0
) and the
frequency oset (df). The formula for calculating the output
wavelength is:
=
c
(
0
)d f + c
0
where c is the speed of light in a vacuum (2.998210
8
ms
-1
).
[:SOURce]:W A VElength:FREQuency?
Syntax [:SOURce ]:WAVElength:FREQuency?
5-28 Remote Commands