Campbell Scientific CS135 Lidar Ceilometer - Manual (Page 50)

CS135 Ceilometer
42
CR LF
= Carriage Return + Line Feed
LINE 4
scale9res9n9 energy9lt9tr9ti_bl9pulse
9
rate9sum CR LF
where
scale (5 characters) = Scale parameter,%, 0 ... 99999. 100% is default
res (2 characters) = Backscatter profile resolution in metres.
n (4 characters) = Profile length 2048
energy (3 characters) = Laser pulse energy, %.
lt (3 characters including leading +/-) = Laser temperature, degrees C
ti (2 characters) = Total tilt angle, degrees
bl (4 characters) = Background light, millivolts at internal ADC input (0 ... 2500)
pulse (4 characters) = Pulse quantity x 1000 (0000-9999)
rate (2 characters) = Sample rate, MHz, (00-99)
sum = Sum of detected and normalized backscatter, 0 ... 999. Multiplied by scaling factor times
10
4
. At scaling factor 100 the SUM range 0 ... 999 corresponds to integrated backscatter 0 ... 0.
srad
-1.
CR LF
= Carriage Return + Line Feed
LINE 5
SSSSSSSSSSSSSSSSSSSSSSSSSSSSS........(2048 x 5 bytes) CR LF
The two-way attenuated normalised backscatter profile
(100000·srad·km)
-1
scaled by the Attenuated_SCALE parameter. Each sample is coded with a
20-bit HEX ASCII character set; msb nibble and bit first, 2's complement.
The profile is not corrected for the tilt angle.
CR LF
= Carriage Return + Line Feed
NOTE