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Related Concept Videos

Equipments Used to Measure Body Temperature01:13

Equipments Used to Measure Body Temperature

960
Body temperature can be assessed using various devices and measured in Celsius or Fahrenheit.
Glass-bulb Thermometer:
Glass-bulb thermometers are hollow glass tubes with a bulb tip containing liquid such as ethanol or mercury. Historically, glass bulb mercury thermometers were the standard device to measure body temperature. Today, mercury thermometers are prohibited in many countries due to the hazardous effects of mercury and the risk of exposure if the glass bulb breaks. In general,...
960
Temperature Measurement Sites01:14

Temperature Measurement Sites

1.5K
A thermometer measures body temperature. The common sites for measuring body temperature are the oral cavity, axillary region, temporal artery, and skin surface, such as the forehead, abdomen, and axilla. True core body temperature is assessed in the rectum, tympanic membrane, pulmonary artery, esophagus, and urinary bladder.
Oral: When assessing oral temperature, the thermometer tip should be placed under the tongue in the posterior sublingual pocket. It offers accurate readings and can be...
1.5K
Assessing Body Temperature - Oral01:14

Assessing Body Temperature - Oral

726
Here are the steps to accurately measure oral temperature using an electronic thermometer:
Step 1:
Start by practicing proper hand hygiene to prevent the spread of microorganisms.
Step 2:
Take the thermometer out of the charging unit, switch it on, and wait for the ready sign.
Step 3:
Gently slide the probe cover until a click is heard. This simple action prevents cross-contamination and ensures the correct placement of the probe cover.
Step 4:
Instruct the patient to open their mouth and place...
726
Assessing Body Temperature - Axilla01:14

Assessing Body Temperature - Axilla

575
Procedural Guide for Assessing Axillary Body Temperature using a Digital Thermometer:
Step 1: Perform hand hygiene and put on clean gloves to maintain infection control and prevent cross-contamination.
Step 2: Prepare the patient by explaining the procedure to ensure understanding and cooperation. Ensure privacy, expose the axilla, and inform the patient that minimal movement is crucial for an accurate reading.
Step 3: Adjust the patient’s clothing to expose only the axilla. It minimizes...
575
Assessing Body Temperature - Tympanic membrane01:14

Assessing Body Temperature - Tympanic membrane

565
Assessing tympanic membrane temperature involves using a tympanic membrane thermometer (TMT). Here is a step-by-step guide:
Step 1: Begin by practicing good hand hygiene to prevent the transmission of microorganisms.
Step 2: Turn on the thermometer and wait until the ready sign appears on the screen to ensure accurate measurement.
Step 3: Slide the probe cover in place to prevent cross-contamination.
Step 4: Instruct the patient to tilt their head to the side for comfort and check for cerumen...
565
Thermometers and Temperature Scales01:22

Thermometers and Temperature Scales

5.1K
Any physical property that depends consistently and reproducibly on temperature can be used as the basis of a thermometer. For example, volume increases with temperature for most substances. This property is the basis for the common alcohol thermometer and the original mercury thermometers. Other properties used to measure temperature include electrical resistance, color, and the emission of infrared radiation.
As many physical properties depend on temperature, the variety of thermometers is...
5.1K

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Intelligent Transducer for Temperature Measurement with Two-Wire or Three-Wire Platinum RTD.

Wiesław Miczulski1, Mariusz Krajewski1, Sergiusz Sienkowski1

  • 1Institute of Metrology, Electronics and Computer Science, University of Zielona Góra, Szafrana 2, 65-246 Zielona Góra, Poland.

Sensors (Basel, Switzerland)
|December 17, 2024
PubMed
Summary

This study introduces an intelligent temperature transducer (ITT) for platinum resistance temperature detectors (RTDs). The ITT achieves high-accuracy temperature measurements with an expanded uncertainty of 0.02 °C.

Keywords:
Monte Carlo methodRTDaccurate transducerauto-calibrationtemperature measurement

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Area of Science:

  • Instrumentation and Measurement
  • Metrology
  • Sensor Technology

Background:

  • Accurate temperature measurement is crucial in various scientific and industrial applications.
  • Traditional resistance temperature detectors (RTDs) can suffer from lead wire resistance and calibration errors.
  • Intelligent temperature transducers (ITTs) offer potential for improved accuracy and compensation.

Purpose of the Study:

  • To present an intelligent temperature transducer (ITT) capable of working with two-wire or three-wire platinum resistance temperature detectors (RTDs).
  • To demonstrate the ITT's ability to compensate for RTD lead wire resistance and minimize various error sources.
  • To validate the effectiveness of an auto-calibration procedure for enhancing measurement accuracy.

Main Methods:

  • Design of an intelligent temperature transducer (ITT) with lead wire resistance compensation.
  • Implementation of an auto-calibration procedure to minimize linearity, offset, gain, and operating condition errors.
  • Utilizing simulation and experimental studies, including Monte Carlo methods, for uncertainty determination.

Main Results:

  • The auto-calibration procedure effectively minimized linearity errors, offset/gain errors, and operational condition-related errors.
  • Simulation and experimental results confirmed the high effectiveness of the proposed auto-calibration method.
  • Temperature measurements in the 0-200 °C range were achieved with an expanded uncertainty of 0.02 °C at a 99% confidence level.

Conclusions:

  • The developed intelligent temperature transducer (ITT) provides highly accurate temperature measurements.
  • The auto-calibration procedure is a key factor in achieving the demonstrated measurement precision.
  • The ITT is suitable for applications requiring precise temperature monitoring within the specified range.