Calibrates an attenuator for electric field stimuli.
- Author
- Jan Benda
- Version
- 2.4 (May 29, 2017)
- Note
- Intensity for attenuation is interpreted as 0.5 * p-p amplitude
-
Calibration non-sine EODs has an offset!
- Options
reset=false:
Reset calibration? (boolean
)
resetval=0.1
: Reset gain factor to (number
)
am=false:
Calibrate amplitude modulation? (boolean
)
beatfreq=20Hz
: Beat frequency to be used when fish EOD present (number
)
frequency=600Hz
: Stimulus frequency to be used when no fish EOD is present (number
)
duration=400ms
: Duration of stimulus (number
)
pause=0ms
: Pause (number
)
amplsel=contrast:
Calibrate for (string
)
targetcontrast=20%
: Target contrast to be tested first (number
)
mincontrast=10%
: Minimum contrast (number
)
maxcontrast=25%
: Maximum contrast (number
)
targetamplitude=1mV/cm
: Target contrast to be tested first (number
)
minamplitude=0.5mV/cm
: Minimum amplitude (number
)
maxamplitude=2mV/cm
: Maximum amplitude (number
)
numintensities=10
: Number of intensities (amplitudes) to be measured (integer
)
- Files
- calibrate.dat : the calibration data (measured versus requested stimulus intensity).
- Plots
- The plot shows the measured versus the requested stimulus intensity (red circles). The yellow line is a fit of a straight line to the data. In case of a successful calibration this line should coincide with the blue line. The horizontal white line is the target intensity.
- Requirements
- An EOD recording (
GlobalEOD
, LocalEOD, FishEOD), that is to be calibrated, and corresponding events.