Technical Measurement (FSI-VTM)

Students are introduced to modern issues of technical measurements. Some broader facts falling within the theory of metrology are also mentioned. An overview of the basics of technical measurements, basic terms, quantities, units, laws and standards is presented. The categories of metrology, the metric convention are mentioned, the national metrological system of the Czech Republic is analyzed and gauges are discussed in more detail. Special attention is paid to measurement errors and, above all, to uncertainties. Uncertainties are described in detail, including in terms of their calculation. Particular emphasis is placed on getting to know the methods of measuring individual technical quantities and measuring devices and preparations, which the student will encounter during classes at FSI and, above all, future technical practice. The above also refers to the acquisition of knowledge about data collection, their processing, also with the use of modern hardware and software technology.

The aim of the subject is to teach students to apply the knowledge gained from measurement and, in the context, from metrology in solving various technical problems in industrial practice.

The output of the study "Technical Measurements" is an understanding of the basic facts of the field and also clarification of the context needed for technical practice. The student will gain at a relatively high level of competence in the field of technical measurements (metrology).

Basic knowledge of physics, mathematics, statistics, mechanics, electrical engineering and automation is assumed, at the level of completed subjects within the previous secondary school study, or previously completed university study subjects.

The subject is first focused on basic facts from the field of metrology. Since metrology is a very large field, only elementary and introductory information is given in this subject. For a broader understanding of the context, it is necessary to start from the recommended literature. Subsequently, students are introduced to the basic properties of measuring devices and preparations that are used in the measurement of the technical quantities described below. An overview of these quantities follows from the list of lectures. The teaching of this subject is supplemented by laboratory exercises on selected topics, their list is given in the overview of laboratory exercises.

The course is taught in the form of lectures, which are an explanation of the basic principles and theory of the discipline. Teaching is complemented by laboratory exercises, where the theoretical knowledge gained from lectures is practically verified. Where possible, lectures will be organized for practitioners and field trips to companies dealing with activities related to the subject matter.

The laboratory exercise is completed by a credit (it is awarded in the 13th teaching week). To obtain it, 100% participation in exercises, activity in exercises and elaboration, submission and teacher recognition of protocols (reports) from all prescribed laboratory exercises is required. Further details are communicated to students at the beginning of the semester. Obtaining a credit is a necessary condition for participation in the exam. The exam consists of a written part followed by an oral interview. In the written part, the student will process five assigned questions. In the oral part, the orientation in the studied issues is examined. The evaluation of the written part, the oral part and the overall evaluation of the exam is given by the classification scale according to ECTS.

Controlled participation in lessons: Controlled participation in lessons: 100% attendance at seminars is required. In case of absence, the student is obliged to compensate the lessons.

1. Technical measurements (metrology), basic concepts, quantities, units, laws, standards, categories of metrology, metric convention, national metrology system, institutions, gauges. Errors of measurement, distribution of errors, uncertainties of measurement, standard uncertainty type A, type B, standard combined uncertainty, expanded uncertainty
2. Measuring devices, their properties, block diagram of measuring chain, block diagram of digital measuring device, microprocessor controlled measurement process, wireless communication, virtual instrumentation, LabVIEW.
3. Length measurement, division of length gauges, vernier caliper, micrometer gauges, caliper, deflection gauges, end gauges, plane angle metrology, protractors, protractors, protractors, spirit levels, profile projector
4. Strain measurement, strain gauges, resistance strain gauges, use of strain gauges, pressure measurement, strain gauges, electrical gauges
5. Measurement of force, moment, position, speed, acceleration
6. Level measurement, level gauges
7. Flow measurement, flow meters, humidity measurement
8. Temperature measurement, touch temperature measurement
9. Non-contact temperature measurement, thermal cameras and their properties, modern methods of temperature measurement
10. Measurement of weight, amount of heat, concentration, density, viscosity, electrolytic conductivity
11. Measurement of electrical quantities, basic measuring systems and methods
12. Electronic measuring devices, digital measuring devices, counter, oscilloscope, measuring converters
13. Measurement and data collection using a computer, communication protocols (HART), IO-link communication standard, software for data collection and processing

1. Introduction, organizational security, safety of work in the laboratory.


2. Measurement errors, measurement uncertainties, standard uncertainty type A.


3. Type B Standard Uncertainty, Standard Combined Uncertainty, Extended Uncertainty.


4. Measuring lengths, calipers, micrometric gauges.


5. Temperature measurement with a contact and non-contact meter. Thermal camera-properties, measurement, operation.


6. Pressure, flow and level measurement.


7. Strain gauges and their use, practical measurement.


8. Measurement of basic electrical quantities. Analogue and digital instruments. Measurement errors. Measurement methods and methodology.


9. Oscilloscope, counter - operation, measurement.


10.  LabView introduction-familiarity with the program, a sample of demonstration examples.


11. LabView – creation of a task on a specified topic.


12. Matlab, Matlab Simulink and their use in the field.


13. Evaluation of the laboratory exercise, credit.