1 / 12

Understanding Electric Measurement Instruments: Basic Terminology & Device Types

Learn about the basic terminology of measuring devices in the field of electric measurement, including the types of devices, systems, and damping techniques. Explore different types of measuring systems, device hands, and rotating storage handles.

bonnie
Download Presentation

Understanding Electric Measurement Instruments: Basic Terminology & Device Types

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. Anglicky v odborných předmětech"Support ofteachingtechnicalsubjects in English“ Tutorial: Mechanic - electrician Topic: Electric measurement the 2nd. year Measuringdevices 2 Prepared by: Ing. Jiří Smílek Projekt Anglicky v odborných předmětech, CZ.1.07/1.3.09/04.0002 je spolufinancován Evropským sociálním fondem a státním rozpočtem České republiky.

  2. Measuring instruments - basic terminology • The measuring device consists: • measuring system - the physical nature of the conversion values ​​for torque • hand • dials with scales • control springs - directive (control) torque • damping • The measuring set consists: • measuring devices • bridges • auxiliary equipment

  3. Measuring instruments - basic terminology • Names of devices according to the measured quantities: • voltage - voltmeter • current - ammeter • resistance - an ohmmeter • power - wattmeter • frequency - frequency meters • power factor - (cosφ) - phase meters cos V A Ω W Hz

  4. Measuring instruments - basic terminology • The names of sets according to the measured variables: • Resistance - Wheatstone bridge • Inductance - Maxwell-Wien bridge

  5. The essence of of measuring devices • Types of measuring systems: • with a rotating magnet – 1 • magnetoelectric – 2 • electromagnetic – 4 • electrodynamic – 5 • ferodynamic - (electrodynamic with iron) – 6 • Induction – 7 • Thermal – 8 • electrostatic – 9 • Resonance – 10 • magnetoelectric with rectifier – 11 • magnetoelectric with thermocouple - 12

  6. The essence of measuring devices • Types of measurement device hands: • blade, filiform - accurate, laboratory instruments • lanceolate - Panel Meters • Reed - switchboard apparatus

  7. The essence of measuring devices • Types of rotating storage with handle: • cylindrical storage • very low friction, • impact is easily damaged. • pivot storage • larger friction than the cylindrical bearing • but mechanically robust.

  8. The essence of measuring devices • Types of scales of measuring devices: • uniform • Uneven • with suppressed zero

  9. Podstata měřicích přístrojů • Types of damping - damping is used to stabilize the displacement hands • magnetic • air

  10. Activities for students–questions • Name what constitutes a measuring device: • Name what constitutes a measurement set: Fill in the following table:

  11. Activities for students–questions • Name the 4 measuring systems and draw their symbols: • Name and draw the types of scales of measuring apparatus: • Name the types of damping

  12. Bibliography • Mužík, J. Management ve vzdělávání dospělých. Praha: EUROLEX BOHEMIA, 2000. ISBN 80-7361-269-7. • Operační program Vzdělávání pro konkurenceschopnost, ESF 2007 – 2013. • Dostupné na: http://www.msmt.cz/eu/provadeci-dokument-k-op-vzdelavani-pro-konkurenceschopnost • Učebnice Elektrická měření – Ing. Pavel Vylegala, SŠE Ostrava, 2006 • Učebnice Elektrické měření – SNTL, 1981 • Elektrotechnika - Laboratorní cvičení pro bakalářské studium - Doc. Ing. Miloš Hammer, CSc.

More Related