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What was utilized around the light source to enhance the signal?(a) Photodiodes(b) Optical Shied(c) Ceramic Substrate(d) Redand infrared LED’sThe question was asked in my homework.The above asked question is from Electromyograph (EMG) in portion Biomedical Recorders of Biomedical Instrumentation

Answer»

Right option is (a) Photodiodes

For explanation: However, in comparison to transmission, the reflection pulse oximeter has poorer signal-to NOISE ratio. Mendelson et al (1988) utilized MULTIPLE photodiodes around the light SOURCE to enhance signal LEVEL.



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