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日期:2021-07-14 11:09

BIRMINGHAM CITY UNIVERSITY

ONLINE EXAMINATION

[ENG5107 Medical Instrumentation and Measurement Online Examination]

This examination is subject to the Code of Practice – Conduct of Examinations and the Student

Disciplinary Procedure


BIRMINGHAM CITY UNIVERSITY


UNDERGRADUATE EXAMINATION


BEng/MEng Biomedical Engineering

MIM5107 Medical Instrumentation and Measurement Exam

Online Closed Book Exam

Date/Time: Available on Moodle

Open: Monday 2nd June 2021 at 9am British Summer Time (GMT + 1)

Close: Monday 2nd June 2021 at 5pm British Summer Time (GMT + 1)


Duration: 8 hours (Actual writing duration: 50 mins + Additional time is given for 10min reading

time, scanning and uploading your answer sheets)

You should spend no longer, than the scheduled duration of the exam plus any approved

additional time that you have been granted in an exam concession (e.g., Student Support

Summary)

You may complete the exam at any time during the scheduled 8-hour period, ensuring you submit

your answers by the above deadline. This takes account of any reasonable adjustments.

Learning Outcomes Assessed:


1. Familiarisation with fundamental physiological principles of bio-potentials


2. Identification and evaluation of characteristics of different bio-electrodes, bio-

amplifiers, and different recorders available for various physiological

measurement


3. Detailed description of detection and visualisation of physiological signals

using bio-potential and bio-impedance modalities


Reading time:

The purpose of reading time is to enable candidates to check that the question paper is

complete. Reading time also allows students to prepare by ensuring they are clear on

the requirements of the exam. Candidates are permitted to annotate the question paper

during reading time and should be aware their question paper will not be sent for

marking. Candidates are not permitted to start completing their answer books until the

end of the reading time.

BIRMINGHAM CITY UNIVERSITY

ONLINE EXAMINATION

[ENG5107 Medical Instrumentation and Measurement Online Examination]


Page 2 of 7

This examination is subject to the Code of Practice – Conduct of Examinations and the Student

Disciplinary Procedure


Instructions to Candidates:


Answer all questions.


All questions carry marks distributed across each section.


The use of a calculator is permitted.


Based on the outcomes of consultation with students (across various levels (4, 5, 6, and 7))

and staff within the Biomedical Engineering course, we are treating this online examination

as a time-limited Closed Book assessment, and you are therefore not permitted to refer to

written and online materials to aid you in your answers. Consequently, any suspected cases

of academic misconduct (such as; collusion or plagiarism), will be referred to the Faculty

‘Student Governance’ team and if proven, in line with the academic misconduct policy

appropriate penalty will be applied.


If you are taking an exam where you’ll need to write equations, or draw diagrams you may

be asked to hand-write your answers and take pictures of your answer pages to upload using

your phone’s camera or the one on another device. Candidates should ensure that all

workings are shown clearly.


There will be a submission point on the VLE site for your module Moodle page. You should

submit your answers to that point in the same way that you would normally submit an essay

or coursework.


Please leave enough time to submit your work before the end of your allocated slot. Any

delay in submitting your online exam script, maximum of 30 minutes post your allocated time

slot, may result in you being marked as a Non-Submission for your exam. If you foresee or

anticipate any personal or technical circumstances limiting the submission of your online

exam, to your Moodle submission portal, within your allocated time, you need to touch base

with your module leader as soon as possible via the communication platform as highlighted

below .


Your tutor will be available from 9am - 5pm British Summer Time (GMT + 1) on Microsoft

teams on the day of your exam, if you want to raise any urgent queries about the paper or

communicate regarding an extenuating circumstance.


Given the above instructions, to upkeep the integrity and conduct of a closed book

online exam, all candidates should carefully consider and plan to overcome any

technical or non-technical / personal issues, limiting you to undertake and submit an

online exam, in a conducive assessment environment, ahead of the impending

assessment date.

If candidates foresee any such issues, you are required to immediately contact the

module/course team, ahead of the assessment date, to explore other alternative

arrangements and overcome any untoward circumstances on the day of your

assessment.

BIRMINGHAM CITY UNIVERSITY

ONLINE EXAMINATION

[ENG5107 Medical Instrumentation and Measurement Online Examination]


Page 3 of 7

This examination is subject to the Code of Practice – Conduct of Examinations and the Student

Disciplinary Procedure


USEFUL FORMULAS


BIRMINGHAM CITY UNIVERSITY

ONLINE EXAMINATION

[ENG5107 Medical Instrumentation and Measurement Online Examination]


Page 4 of 7

This examination is subject to the Code of Practice – Conduct of Examinations and the Student

Disciplinary Procedure


Assessment Task

1. (a). You are required to design a biopotential sensor to measure a single pyramidal cell that

gives a 500mV action potential in 5ms. The cell diameter is 40μm and its membrane

capacitance is 1μF/cm2. Assume σ = 0.1Ω-1m-1. Determine the amplitude of the extracellular

potential at 20cm distance? (11 marks)


(b). From your result in (a), discuss how you will maintain a zero-net current in the cell.

(5 marks)

(c). You realise the biopotential is weak for recording and are required to design a

biopotential amplifier as shown below.


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