MOGlabs MWM, Manual, Page: 71 / 96

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
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