Non-linear sensor example

You have a photoresistor-based illuminance sensor that measures light output from 0 to 800 lux, supplying a resistance of 30K ohms to 3K ohms. Using a ResistiveInputPoint, select the conversion type Generic Tabular, and click the edit control for the Tabular Conversion Dialog.

In the dialog, enter the sensor’s non-linear response curve (shown below). Configure this point’s facets to have units: “illuminance,” “lux” (lx), and the same units in the point’s Linear Calibration Ext.

Example illuminance sensor source (ohms) to results (lux)

Ohms	Lux
3000	800
3200	700
3500	600
4000	500
4200	450
4600	400
5000	350
5500	300
6100	250
6900	200
8200	150
10200	100
10900	90
11600	80
12400	70
13300	60
14400	50
15800	40
17700	30
20300	20
30000	0

Non-linear sensor example

Example illuminance sensor source (ohms) to results (lux)

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