BME 322 Quiz 2 Week 5

Question 1

Some Differences / Differential Amplifier Application

Answer 1

• Wheatstone bridge strain gauge amplifier
• ECG Instrumentation amplifier

Question 2

Filters

Answer 2

Time domain t and frequency domain f

y = sin(2pit)
frequency w = 2pif

Question 3

Filter Types

Answer 3

Ideal (is a branch)

then there is
- Low pass filter
- High pass filter
- bandpass filter
- notch filter

Question 4

One important filtering application in bioinstrumentation

Answer 4

ECG with noise

Question 5

Filters with circuits

Answer 5

Passive filter:
- only passive elements (ex: capacitors and resistors_

Active filters:
- (ex: om-amp)

Question 6

Cut-off frequency

Answer 6

Actual filters can never be ideal

Cut-off frequency or half-power point

Question 7

Om-amp Bandpass filter consists of 3 components

Answer 7

1. A unity-gain lower pass filter
2. A unity-gain high pass filter
3. A gain component