25- The circuit below is a signal conditioner for an LDR (light dependent resistor) sensor. By changing Vin and Rf user can adjust the output voltage for a required range. The resistance of LDR according to the change of luminance/illumination is given in the formula. Vin = -2mV, Rf=10Kohm. If the luminance/illumination is equal to the last 3 digit of your student number in terms of unit lux, what will be the output voltage in terms of mV. Rf Resistance (n) LDR Dark Daylight Sunlight 10 in Vout 104 -lux ohm 10000 RL 10 Illumination (LUX) 10 10

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last 3 digit = 582

25- The circuit below is a signal conditioner for an LDR (light dependent resistor) sensor. By changing
Vin and Rf user can adjust the output voltage for a required range. The resistance of LDR according
to the change of luminance/illumination is given in the formula. Vin = -2mV, Rf=10Kohm. If the
luminance/illumination is equal to the last 3 digit of your student number in terms of unit lux,
what will be the output voltage in terms of mv.
Rf
Resistance
(n)
LDR
Dark
Daylight
Sunlight
10°
Vin
Vout
10000 104
RL
-lux ohm
10
Illumination
101
10
(LUX)
Transcribed Image Text:25- The circuit below is a signal conditioner for an LDR (light dependent resistor) sensor. By changing Vin and Rf user can adjust the output voltage for a required range. The resistance of LDR according to the change of luminance/illumination is given in the formula. Vin = -2mV, Rf=10Kohm. If the luminance/illumination is equal to the last 3 digit of your student number in terms of unit lux, what will be the output voltage in terms of mv. Rf Resistance (n) LDR Dark Daylight Sunlight 10° Vin Vout 10000 104 RL -lux ohm 10 Illumination 101 10 (LUX)
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