
D. Command language
The
MWM
is controlled via simple text commands of the form:
wavelength,vacuum
Each command begins with a text key.
Only a few letters of the text
key are required, just enough to uniquely identify the command against
all other valid commands.
Some commands will have a sub-command,
and/or parameters including integers, hexadecimal integers (e.g.
0xf31b
),
floating-point numbers, and text strings.
Each command will return a
requested value, or a default “OK”.
D.1
Wavelength measurement
WAVELENGTH
wave,<units>,<num>
or
wave,<num>,<units>
Acquire image at current field of view and exposure time, and return calcu-
lated wavelength or frequency (defaults to units specified on device). The
value is returned as a floating-point string.
<num>
= 1
..
150 optional repeat count. Values are space-separated.
<units>
optional unit specifier as for the
units
command below.
UNITS
units,raw
raw (as measured) wavelength [nm]
units,vac
in-vacuum wavelength [nm]
units,air
wavelength for NTP conditions [nm]
units,thz
frequency [THz]
units,num
wavenumber [cm
−
1
]
units,col
peak location as column number.
Set display units for wavelength when device is operating standalone,
initiated by pressing the
↓
(DOWN) button. Note that the device measures
wavelength in air for ambient temperature, pressure and humidity, given
by the
raw
result. The
air
result is corrected for normal temperature and
63
Summary of Contents for MWM
Page 1: ...MWM wavemeter Revision 3 19 mogwave 1 4 15 Firmware 0 6 9 ...
Page 4: ...ii ...
Page 7: ...Contents v G Ugrading firmware 83 References 84 ...
Page 8: ...vi Contents ...
Page 54: ...46 Chapter 6 Calibration ...
Page 58: ...50 Appendix A Specifications ...
Page 66: ...58 Appendix B Communications ...
Page 70: ...62 Appendix C Programming ...
Page 86: ...78 Appendix E mogwave configuration ...
Page 92: ......
Page 94: ...86 ...
Page 95: ......