ETC sensor+ CEM+ - Modified Linear Curve; Square Law Curve

55 Sensor+ Dimming System User Manual
Modified linear curve
A modified linear curve reduces the voltage change at low control levels for better
performance in low-wattage fixtures.
Square law curve
At low control levels, much of traditional incandescent fixture’s light output is in the invisible
infrared spectrum. This results in poor visible response to low control levels. A square law
curve applies a multiple derived from the square root of the control level (with full output
equal to 1.00) to increase voltage response at low control levels to compensate for the
infrared loss.
Modified Linear Curve
100
Output Voltage (RMS)
120
140
80
60
40
20
0
1 102030405060708090100
Console percentage setting
Modified linear curve ––––– Linear curve --------- (for reference)
100
Output Voltage (RMS)
120
140
80
60
40
20
0
1 102030405060708090100
Console percentage setting
Square law curve ––––– Linear curve --------- (for reference)