AE3B38SME (BE5B38SME) Sensors and Measurement

Course attribute
Course full name: 
Sensors and Measurement
Ripka P.
Butta M., Ripka P.
Weekly load: 
4 hours lecture + 2 hours laboratory


Basic circuits and instruments for measurement of electrical quantities, AD and DA converters, sensors focused to use in robotics and automation, intelligent sensors, methods of decreasing uncertainties.


Schedule 2016


1.  Sampling and quantization, AD converters, digital oscilloscope.
2.  Measurement of voltage, current, frequency and phase difference. Counter. Errors and measurement uncertainties.
3.  Measurement of RMS value  & power and energy consuption. 
4.  Measurement of small voltages. Measurement of resistances. Instrument transformers.  
5.  Magnetic measurements. Measurement of impedances.  
6.  Other measuring instruments – reference sources, DA converters, signal generatotors, spectrum analyzer.  

7.  Sensing of linear and angular position. Optoelectronic and ultrasound sensors.
8. Sensors of velocity, acceleration and vibrations.
9. Measurement of force and pressure
10.Measurement of flowrate and level
11.Contact measurement of temperature.
12.Contactless measurement of temperature.
13. Repetition. Solving and calculation of examples.

Laboratory exercises:

1. Introduction, safety rules in laboratory. Seminar: Analog oscilloscop; Excercise: measurement using analog oscilloscope.  

2. Thermocouple, measurement of its voltage, compensation of temperature of its cold end.     
3. Measurement on a switching circuit, Influence of waveform on meter reading, its relationship to frequency dependence, spectrum. 
4. An optical positionning sensor, measurement of photocurrent
5. A/D successive approximation converter.  
6. Sensors of electric current. Power measurement.

7. Measurement of linear shift
8. Capacitive level sensor. Measurement of impedances.
9. Measurement of force by means of a strain gage bridge.
10. Measurement on transformers (leakage magnetic field, dynamic hysteresis loop, amplitude permeability). temperature
11.Resistance temperature sensor, a measurement system. 
12. Measurement of blood pressure and pulse frequency.

13. Individual measurement.
14. Individual measurement and  assessments.


[1] Fraden, J.: Handbook of Modern Sensors,  Springer; 3rd edition (September 21, 2001)
[2] Ripka, P., Tipek, A. (Eds.): Modern Sensors Handbook, ISTE 2007, ISBN 978-1-905209-66-8
[3]  Haasz, V., Sedláček, M.: Electrical Measurements. ČVUT in Prague, Praha 2006
[4]  Sedláček, M., Holub, J., Hejtmanová, D.: Laboratory exercises in Electrical measurements. University texbook, ČVUT, Praha 2011 (2nd edition)

Other literature:
1. Placko D.: Fundamentals of Instrumentation and Measurement, ISTE 2007, ISBN 1-905209-39-8
3. Northrop R.B.: Introduction to Instrumentation and Measurements, CRC 2005, 0-8493-3773-9

Input requirements:
Basics of physics, electrical circuits and mathematical analysis..
Prerequisits: At least the assessment of Physics 1.

Requirements for assessment
Presence on all laboratory exercises and elaboration of all laboratory reports. More detailed requirements for assessment see below.

Requirements for examination:

Content of lectures and knowledge of laboratory exercises.

Written test containing theoretical questions and an example.
test: maximum 64 points
90 min.

Every laboratory report will be evaluated and the student will receive max. 2 points. Totally max. 20 points will be given for the laboratory reports. 

The last two weeks of the semester instead of usual laboratory excercise, the students will perform individual measurement: for a given task the student must be able to select proper instruments, arrange a measurement set-up and perform the required measurement . For this practical test max. 6 points are given.

Finally a theoretical test at the end of the semester will give max. 64 points.

Laboratory reports 20 (2x10)
1st intermediate test 4
2nd intermediate test 6
Individual measurement (week 13 and 14) 6
Final test 64

Samples (including numerical results) can be found in textbook [4] on pages 125 – 134. Leave out examples 37-44, 49-51 and 54-55.


Detailed conditions for assessment

  1. Each student has to take part in all laboratory exercises. Compensation of absence for serious reason will be prescribed by the laboratory exercise supervisor..
  2. The information to laboratory exercise and the measured values shall be put during the laboratory exercise into a laboratory diary. The laboratory dairy must be in paper form. The measurement report shall contain: title of measurement, a brief theoretical introduction, a brief task of measurement, a schematic diagram, list of the used instruments, the measured and calculated values, graphs and conclusions.
  3. Two tests will be written during the semester. The test is composed of theoretical questions covering the until test day passed lectures.
  4. Considering the variety of measured tasks it is important that every student knows the basics of the measured task and the relevant physical principles before starting measurement. A source of information is the suggested literature and the instructions for measurement on web. The student has to be able to explain to the laboratory exercises supervisor the content of the task and basic principles of sensors, instruments and circuits used in the task. For proving this knowledge the student might get a point evaluation.
  5. A condition for getting assessment is, besides complete presence, also the actual preparation of laboratory records according to point 2 during the whole semester. 
  6.  Points for laboratory exercises: For any laboratory exercise two points can be reached if::
  • The laboratory diary is systematically prepared, it is worked out by the student and the student understands its content and is able to explain it. 
  • The student comes to each laboratory exercise prepared, and has in its laboratory diary task of measurement and a theoretical introduction (mainly the necessary formulas).
  • Before leaving the laboratory, the student demonstrates to the supervisor the measured values and calculations.
  • The student will bring (in a diary or printed out) the worked out laboratory report on the subsequent laboratory exercise. He corrects possible shortages till the subsequent laboratory exercise 

Maximum  20 points can be gained in this way from the 10 laboratory tasks.

  General conditions:

  • Student measure laboratory tasks individually or in couples.
  • It is forbidden to eat or to use a mobile phone in laboratory.
  • Coats and large luggage should be left in cloakroom.