Biomedical Instrumentation and Measurement
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Questions and Answers

What is the primary assumption in indirect measurement mode?

  • The measurand is easily accessible
  • The measurement requires invasive procedures
  • The relationship between the measurands is already known (correct)
  • The measurement is only possible using ultrasound

    • What is the primary function of a sensor in a general instrumentation system?

  • To convert energy or information from the measurand to another form (correct)
  • To connect the elements of the system
  • To process the signal from the measurand
  • To display the information to humans

    • Which principle of transduction is used in ECG measurement?

  • Ultrasound
  • Electromagnetic induction
  • Electrical conduction (correct)
  • Mechanical pressure

    • Which of the following is an example of an organ system application of biomedical instruments?

    <p>Cardiovascular</p> Signup and view all the answers

    What is the purpose of the dashed lines in the diagram of a general instrumentation system?

    <p>To indicate the optional elements and connections</p> Signup and view all the answers

    Which of the following resources is useful for learning about circuits and electronics?

    <p>MIT OpenCourseWare: Circuits and Electronics</p> Signup and view all the answers

    What is the difference between biomedical instruments and conventional instruments?

    <p>Source of signals is living tissue</p> Signup and view all the answers

    What is the advantage of using LTspice simulator for circuit design?

    <p>It is freely available and easy to use</p> Signup and view all the answers

    What is the term for the difference between the true value and the measured value divided by the true value?

    <p>Accuracy</p> Signup and view all the answers

    What is the primary function of the processing component in a general instrumentation system?

    <p>To process the signal from the sensor</p> Signup and view all the answers

    What is the term for the number of distinguishable alternatives from which a given result is selected?

    <p>Precision</p> Signup and view all the answers

    What is the term for a physical quantity, property, or condition that a system measures?

    <p>Measurand</p> Signup and view all the answers

    What type of sensor should respond to a specific form of energy in the measurand?

    <p>Selective</p> Signup and view all the answers

    What is the purpose of signal conditioning in biomedical systems?

    <p>To amplify and filter the signal acquired from the sensor</p> Signup and view all the answers

    What type of measurand is measured through the extraction of tissue samples, blood analysis, or biopsy?

    <p>Offline</p> Signup and view all the answers

    What is the primary advantage of using direct mode measurement in biomedical systems?

    <p>It measures the desired measurand directly</p> Signup and view all the answers

    What is the purpose of calibration in signal conditioning?

    <p>To adjust the output to match the parameter measured</p> Signup and view all the answers

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