Note

Auto-generated: May 07, 2021

root

Conventions

“SPIF-0.86” ;

title

/instrument

instrument_name

dimension

“bit” ;

dimension

“pixel” ;

float array_rate

array_rate:long_name = “Temporal clocking rate of imaging array” ;

array_rate:units = “hertz” ;

int array_size

array_size:long_name = “Number of pixels across the imaging array, may be 1d or 2d.” ;

array_size:units = “dimensionless” ;

int image_size

image_size:long_name = “Number of pixels across an image, may be 1d or 2d. If fixed size then number of pixels, if variable size then _FillValue” ;

image_size:units = “dimensionless” ;

image_size:_fillvalue = “0” ;

float resolution

resolution:long_name = “Physical resolution of array pixels instrument” ;

resolution:units = “um” ;

float shadow (bit)

shadow:long_name = “Fractional obscuration of photodiode array for each bit value” ;

shadow:units = “dimensionless” ;

float start_time

start_time:long_name = “Reference datetime of image data” ;

start_time:units = “seconds since <reference datetime>” ;

int value (bit)

value:long_name = “Value of shadow level in image array” ;

value:units = “dimensionless” ;

float wavelength

wavelength:long_name = “Operating wavelength of laser used for shadowing/imaging the particles” ;

wavelength:units = “nm” ;

/instrument/core

dimension

“image_num” ;

int height (image_num)

height:long_name = “Number of slices/lines in image” ;

height:units = “dimensionless” ;

int image (pixel)

image:long_name = “Flattened 1d array of images” ;

image:units = “dimensionless” ;

int overload (image_num)

overload:long_name = “Probe particle overload status” ;

overload:flag_values = “0, 1” ;

overload:flag_meanings = “normal overload” ;

overload:units = “dimensionless” ;

int startpixel (image_num)

startpixel:long_name = “Array index of first image slice” ;

startpixel:units = “dimensionless” ;

float timestamp (image_num)

timestamp:long_name = “Image arrival time in nanoseconds from reference start time” ;

timestamp:units = “nanoseconds since <start_time>” ;

timestamp:ancillary_variables = “instrument/start_time” ;

int width (image_num)

width:long_name = “Number of pixels across image” ;

width:units = “dimensionless” ;

/instrument/raw

dimension

“buffer” ;