New references for high temperature measurements

Summary of work reported for high temperature measurements from NPL As a culmination of an eight-year research programme an international collaboration has developed robust reference fixed points, studied their sensitivity to impurities and external conditions and finally measured their melting transition temperature. This talk describes how 100+ measurements made by nine different NMIs have been combined to assign low-uncertainty thermodynamic temperatures to the melting transition of Re-C, Pt-C and Co-C metal-carbon eutectics. At the simplest level, these fixed-points will provide new temperature references for the calibration of pyrometers at temperatures above the freezing point of silver (1234.93 K) and will … Continue reading

TI Temperature Measurement Videos

TI, or Texas Instruments, is one of the world’s most prolific and largest makers of temperature sensors. They make all kinds but their sensors are mostly in the form of Integrated Circuit semiconductors. TI also does an exceptional job in educating users how their devices work and how they can be interfaced and incorporated in measurement systems. Especially useful are the videos showing how some of their other integrated circuit modules can be used with external temperature sensors, like Thermocouples, RTDs and Thermistors. Here’s an example of an interesting one: Contactless Temperature Measurement Made Simple – TMP006 by Texas Instruments … Continue reading

Thermocouple 101

The Analog Devices’ 8 Video Series on Thermocouples This informative, basic series of brief videos on YouTube and linked on the AD website seems to lack an index. Below there is an approximation to what we believe the staff at AD intended followed by a series of 8 pages, one for each video on YouTube.com Index Thermocouple 101: What is a Thermocouple? Thermocouple 101: Measuring the Tiny Signal Thermocouple 101: Cold Junction Compensation Thermocouple 101: Setting the Common Mode Voltage Thermocouple 101: Open Thermocouple Detection Thermocouple 101: Filtering a Thermocouple Thermocouple 101: Thermocouple Nonlinearity Thermocouple 101: Compensating for Nonlinearity What … Continue reading

New ASTM Standard For Digital Thermometers

ASTM E2877, Guide for Digital Contact Thermometers W. Conshohocken PA, USA — A new ASTM International standard provides a variety of recommendations for the manufacture and selection of digital thermometers. ASTM E2877, Guide for Digital Contact Thermometers, was developed by Subcommittee E20.09 on Digital Contact Thermometers, part of ASTM International Committee E20 on Temperature Measurement. Included in ASTM E2877 is a set of accuracy classes for digital thermometers. These classes pertain to the temperature interval from -200 °C through 500 °C, an interval important for many thermometry applications. In order to qualify for a specific accuracy class, a thermometer must … Continue reading

The Pros & Cons of RTDs & Thermocouples – By Jim Pinto

One useful resource on RTD and Thermocouple sensors was found at Jim Pinto’s Writings section of his website, borrowed from the original article that he wrote for Instruments & Control Magazine in June 2000, at: www.jimpinto.com/writings/tempsensors.html. In the article Jim takes particular care to describe the likely errors that can occur with less-than-perfect cold junction correction in some electronic thermocouple instruments (i.e. signal conditioners, displays, controllers and transmitters) He prefaces his remarks by saying: Resistance temperature detectors and thermocouples can be used for some of the same measurements, but each has strengths and weaknesses that must be carefully matched to … Continue reading

Measurement of Temperature Under Various Conditions – Lecture 13

The Fifth Lecture in the 11 Lecture Sub-series on Temperature Measurement. Also online at youtu.be/PWXhWm3oQ68 and NPTEL at: nptel.iitm.ac.in/video.php?subjectId=112106138. Lecturers for these videos are Prof. Shunmugam M. S., Department of Mechanical Engineering , IIT Madras.(email: shun@iitm.ac.in) and.Prof. S.P. Venkateshan, Department of Mechanical Engineering , IIT Madras (email: spv@iitm.ac.in). Numbers after the lecture title indicate the length of the lecture in (hh:mm:ss) format. You can appreciate from the list and times shown, this is about a 50 hour course, equivalent to a substantial opportunity to learn the topics in significant depth. Lectures in this course: 50 – Syllabus: PDF. 1 – … Continue reading

Thermoelectric Thermometry (Continued) – Lecture 12

The Fourth Lecture in the 11 Lecture Sub-series on Temperature Measurement. Also online at youtu.be/_STPaaaDB8Y and NPTEL at: nptel.iitm.ac.in/video.php?subjectId=112106138. Lecturers for these videos are Prof. Shunmugam M. S., Department of Mechanical Engineering , IIT Madras.(email: shun@iitm.ac.in) and.Prof. S.P. Venkateshan, Department of Mechanical Engineering , IIT Madras (email: spv@iitm.ac.in). Numbers after the lecture title indicate the length of the lecture in (hh:mm:ss) format. You can appreciate from the list and times shown, this is about a 50 hour course, equivalent to a substantial opportunity to learn the topics in significant depth. Lectures in this course: 50 – Syllabus: PDF. … Continue reading

Thermoelectric Thermometry – Lecture 11

The Third Lecture in the 11 Lecture Sub-series on Temperature Measurement. Also online at youtu.be/_q7P9UCae1o and NPTEL at: nptel.iitm.ac.in/video.php?subjectId=112106138. Lecturers for these videos are Prof. Shunmugam M. S., Department of Mechanical Engineering , IIT Madras.(email: shun@iitm.ac.in) and.Prof. S.P. Venkateshan, Department of Mechanical Engineering , IIT Madras (email: spv@iitm.ac.in). Numbers after the lecture title indicate the length of the lecture in (hh:mm:ss) format. You can appreciate from the list and times shown, this is about a 50 hour course, equivalent to a substantial opportunity to learn the topics in significant depth. Lectures in this course: 50 – Syllabus: PDF. … Continue reading

FREE Online Lectures on Industrial Instrumentation

A 40 Hour Video Lecture Series by: Prof. Alok Barua Department of Electrical Engineering IIT Kharagpur, India We have featured several educational video lectures on Temperature Sensors in Prof. Barua’s online course, (Numbers 8, 9 and 7 on Thermocouples, RTDs and Thermistors, respectively) but realize the depth and extent of just this one component of the NPTEL Courses available online for free is something special! Below is a list of the courses available via YouTube and The NPTEL Website in this the Electrical Engineering :: Industrial Instrumentation Series along with his first video lecture in the Series. Forty Lectures online,  … Continue reading