1 / 10

Unit III

Unit III. Measurement of Temperature. Measurement of Temperature. Temperature sensors LM335 RTD Thermistors Thermocouples Pyrometers. LM 335. Pin Configuration. LM 335. Circuit with zero adjustment. RTD. schematic diagram of a typical RTD. RTD.

rhumphries
Download Presentation

Unit III

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. Unit III Measurement of Temperature

  2. Measurement of Temperature Temperature sensors • LM335 • RTD • Thermistors • Thermocouples • Pyrometers

  3. LM 335 Pin Configuration

  4. LM 335 Circuit with zero adjustment

  5. RTD schematic diagram of a typical RTD

  6. RTD Temp. measurement using RTD: Two wire configuration

  7. RTD Temp. measurement using RTD: Two wire configuration

  8. Thermistor

  9. Construction of Thermistors Thermistors are composed of sintered mixture of metallic oxides such as magganese, nickel, cobalt, copper, iron & uranium. They are available in variety of sizes & shapes.

  10. Advantages & Limitations Advantages: • Small size & low cost • Fast response over narrow temperature range • Good sensitivity • Cold junction compensation is not required • Contact & lead resistance problems not encounered Limitations: • Non-linearity in resistance vs temperature characteristics • Unsuitable for wide temperature range.

More Related