Which of the following is not true? In building the Photoplethysmography (PPG),

Question

Which of the following is not true?

In building the Photoplethysmography (PPG), photodiode works in the forward biased mode.

In building the Photoplethysmography (PPG), photodiode works in the reverse biased mode.

photovoltaic sensors can be used to detect radiation. Photovoltaic light sensor will generate DC electric voltage/current upon light radiation. To measure the light, we can directly amplify the voltage generated from the photovoltaic sensor and set up relationship between the output voltage and the light intensity.

Photoconductive cells can be used to measure radiation. The resistance of photoconductive cells is light dependent. In order to measure radiation through photoconductive cell, we need to supply external power and then measure the resistance of the

In building the Photoplethysmography (PPG), photodiode works in the forward biased mode.

In building the Photoplethysmography (PPG), photodiode works in the reverse biased mode.

photovoltaic sensors can be used to detect radiation. Photovoltaic light sensor will generate DC electric voltage/current upon light radiation. To measure the light, we can directly amplify the voltage generated from the photovoltaic sensor and set up relationship between the output voltage and the light intensity.

Photoconductive cells can be used to measure radiation. The resistance of photoconductive cells is light dependent. In order to measure radiation through photoconductive cell, we need to supply external power and then measure the resistance of the

Explanation / Answer

a) In Building the PPG,Photodiodes works in the forward biased mode

is not true

b) ,c),d) are true statements

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