====== Cloud Particle Imager (CPI) ======

Manufacturer: [[http://www.specinc.com/|Stratton Park Engineering Company Inc.]]

===== Description =====
Images of cloud particles.

===== Instrument Requirements =====
Power:  110 VAC 7.5 Amps [400 Hz Inverter for Heaters 15 ADC]  [Source:  Paul LeHardy]

Weigth: 23 Kg (51 lbs) [Sensor]  26.3 Kg (58 lbs) [Computer, Power Supply, etc] [Source:  Paul LeHardy]


===== Issues =====

- Changed U1 & U2 IC chips p/n = sn75als170j, and U15 & U16 also, p/n = sn74act245n from Digikey

- 2017/02/27: Possible fix to buffer read issue is to re-seed SCSI card.

===== Picture =====
{{dept:atmos:citation:citationequipment.jpg}}


===== IDL Code for 1s interval images =====
 * Open IDL

<code> idl </code>

 * download the coyote library here: idlcoyote.com/documents/programs.php#COYOTE_LIBRARY_DOWNLOAD
 * make a directory called 'idlfiles' in your home directory and unzip the coyote package contents in here.
 * import the coyote library:
<code> IDL> !PATH = Expand_Path('+~/idlfiles/coyote/') + ':' + !PATH </code>

 * next execute the cpi_imagedump.pro file (ask christian nairy for this file <christian.nairy@und.edu>)
<code> IDL> cpi_imagedump, file_search('PATH_TO_ROI_FILES/*roi'), numcolumns=4, xpanelsize=1200, project='IMPACTS', naming='GHRC' </code>