From the following components, choose correct sequence of any medical instrumentation system.
A. Signal conditioner
B. Microcontroller
C. Display
D. Sensor/transducer
Choose the correct answer from the options given below :
A. Signal conditioner
B. Microcontroller
C. Display
D. Sensor/transducer
Choose the correct answer from the options given below :
Show Hint
Physical Source \(\rightarrow\) Detection (Sensor) \(\rightarrow\) Processing (Conditioning/Compute) \(\rightarrow\) Output (Display).
- A, B, C, D
- B, A, D, C
- A, B, D, C
- D, A, B, C
The Correct Option is D
Solution and Explanation
The question asks to arrange the generic block diagram components of a standard medical instrumentation and data acquisition system in their logical chronological order of signal processing.
Step 2: Step-by-step Explanation:
• A generalized medical instrumentation system captures biological signals from a patient and processes them into a readable format. The systemic progression happens step-by-step.
• 1st Stage - Sensor/transducer (D): This is the very first component interfacing with the patient. It detects physical physiological parameters (like temperature, pressure, or biochemical activity) and converts them into a proportional raw electrical signal.
• 2nd Stage - Signal conditioner (A): The raw electrical signal generated by the transducer is typically extremely weak and heavily contaminated with noise. The signal conditioner amplifies the signal and applies specialized electronic filters to remove noise and isolate the target frequency band.
• 3rd Stage - Microcontroller (B): Once the signal is clean and amplified, it enters the microcontroller unit. Here, an Analog-to-Digital Converter (ADC) digitizes the signal so that the microcontroller's CPU can perform complex computational processing and algorithmic analysis.
• 4th Stage - Display (C): After processing is complete, the final computed data is outputted to an interface for the clinician to interpret. This is typically a graphical display or an alarm system.
• The proper sequential flow of the signal is thus: Sensor \(\rightarrow\) Signal Conditioner \(\rightarrow\) Microcontroller \(\rightarrow\) Display.
• Translating this to the given letters yields the sequence: D, A, B, C.
Step 3: Final Answer:
The chronological processing sequence logically corresponds to Option (D).
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