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standard thermocouples

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Published: 01 January 1990
Fig. 5 Thermal emf curves for ISA standard thermocouples. Thermal emf plots are based on IPTS-68 (1974) More
Book Chapter

Series: ASM Desk Editions
Publisher: ASM International
Published: 01 December 1998
DOI: 10.31399/asm.hb.mhde2.a0003158
EISBN: 978-1-62708-199-3
..., and great versatility of application. Thermocouples are grouped into two broad categories, namely, standard thermocouples, including five base-metal thermocouples and three noble-metal thermocouples that have been given letter designations, and nonstandard thermocouples, including iridium-rhodium, platinum...
Series: ASM Handbook
Volume: 2
Publisher: ASM International
Published: 01 January 1990
DOI: 10.31399/asm.hb.v02.a0001098
EISBN: 978-1-62708-162-7
.... A circuit diagram describing a thermocouple in a voltmeter circuit is shown in Fig. 1(b) . Thermoelement A is represented by a battery E A and resistance R A . E A is the emf output of thermoelement A with reference to a certain standard, and R A is the resistance of thermoelement A. Similarly...
Series: ASM Handbook
Volume: 4B
Publisher: ASM International
Published: 30 September 2014
DOI: 10.31399/asm.hb.v04b.a0005925
EISBN: 978-1-62708-166-5
... of materials can be used in making a thermocouple junction. Commercially available thermocouples are grouped according to material characteristics (base metal or noble metal) and standardized designations by the American National Standards Institute (ANSI), ASTM International, and the Instrument Society...
Series: ASM Handbook
Volume: 4B
Publisher: ASM International
Published: 30 September 2014
DOI: 10.31399/asm.hb.v04b.a0005968
EISBN: 978-1-62708-166-5
... thermocouples be calibrated traceable to the National Institute of Standards and Technology (NIST) or some other equivalent national institute of calibration prior to their first use, and that certain accuracy requirements be met. These specifications also require that the TUS test thermocouples...
Image
Published: 01 January 1986
Fig. 8 Insert used in a standard varian 9-GHz cavity for FMR studies at high temperatures. 1a and b, copper plates with O-ring in between; 2, stainless steel tube; 3, copper rod; 4 and 5, heater and leads; 6, thermocouple; 7, sample; 8, quartz tube. Source: Ref 8 More
Series: ASM Handbook
Volume: 4B
Publisher: ASM International
Published: 30 September 2014
DOI: 10.31399/asm.hb.v04b.a0005931
EISBN: 978-1-62708-166-5
... monitoring and control of motion and position of various mechanical components with the help of mechanical limit switches, proximity sensors, and distance- and position-measuring devices. Using inputs from both flow meters and sensors, such as thermocouples and oxygen sensors, flow measurement control...
Series: ASM Handbook
Volume: 21
Publisher: ASM International
Published: 01 January 2001
DOI: 10.31399/asm.hb.v21.a0003434
EISBN: 978-1-62708-195-5
... during composite material lay-up is essential if the structural, dimensional, and environmental performance designed into a part is to be consistently achieved. The inspection techniques are usually based on governmental standards, company processing specifications, quality assurance requirements...
Series: ASM Handbook
Volume: 10
Publisher: ASM International
Published: 15 December 2019
DOI: 10.31399/asm.hb.v10.a0006674
EISBN: 978-1-62708-213-6
... -axis. The oriented crystal axis gives SRM 732 very repeatable and reproducible CTE values. A more recent (still available in 2019) SRM is 731, a borosilicate glass, that includes subambient CTE values. Both of these standards were measured by NIST in a dilatometer equipped with a thermocouple...
Series: ASM Handbook
Volume: 1A
Publisher: ASM International
Published: 31 August 2017
DOI: 10.31399/asm.hb.v01a.a0006334
EISBN: 978-1-62708-179-5
..., and compacted graphite cast irons. Resin bonded sand cups, 36 by 36 by 40 mm (1.42 by 1.42 by 1.57 in.) in size with a K-type thermocouple, are the most used standard containers to record cooling curves. More recently, other cup versions have become available ( Fig. 10 ). The main advantages of those cups...
Series: ASM Handbook
Volume: 18
Publisher: ASM International
Published: 31 December 2017
DOI: 10.31399/asm.hb.v18.a0006409
EISBN: 978-1-62708-192-4
... of dissimilar contact materials. Although the response of these sensors is fast, it has been shown that the measured flash temperature rise is always (slightly) lower than the calculated temperature. Operating window of standard thermocouples Table 2 Operating window of standard thermocouples SLD...
Series: ASM Handbook
Volume: 8
Publisher: ASM International
Published: 01 January 2000
DOI: 10.31399/asm.hb.v08.a0003322
EISBN: 978-1-62708-176-4
... be understood that testing for deformation processing is very different from testing for static mechanical properties. Testing for static mechanical properties, such as tensile strength, yield strength, and elongation, needs to be conducted at a very low loading rate, and according to standards such as those...
Series: ASM Handbook
Volume: 8
Publisher: ASM International
Published: 01 January 2000
DOI: 10.31399/asm.hb.v08.a0003266
EISBN: 978-1-62708-176-4
... are basically the same as room-temperature testing. The key differences are the heating apparatus, accurate measurement of specimen temperature, and suitable instruments for measuring strain at high temperature. ASTM E 21 is the prevailing U.S. standard for high-temperature tensile testing ( Ref 14 ). General...
Series: ASM Desk Editions
Publisher: ASM International
Published: 01 December 1998
DOI: 10.31399/asm.hb.mhde2.a0003199
EISBN: 978-1-62708-199-3
.... Functions in an integrated digital process management system are shown in the dashed blocks. Temperature Sensors Thermocouples and resistance temperature detectors (also known as resistance thermometers) are the most important contact-type electrical temperature sensors used in the metals industry...
Book: Casting
Series: ASM Handbook
Volume: 15
Publisher: ASM International
Published: 01 December 2008
DOI: 10.31399/asm.hb.v15.a0005217
EISBN: 978-1-62708-187-0
... Analysis Figure 5 shows a schematic setup for differential thermal analysis. The sample to be analyzed and the standard sample, with a thermocouple in each, are placed in a furnace. The temperature of the furnace and the cooling rate are controlled and measured with a separate thermocouple...
Series: ASM Handbook
Volume: 22A
Publisher: ASM International
Published: 01 December 2009
DOI: 10.31399/asm.hb.v22a.a0005436
EISBN: 978-1-62708-196-2
... . A statistical correlation of the published experimental data of water in the nucleate boiling regime was conducted by Stephon and Abdelsalam ( Ref 31 ) and found to be in excellent agreement with Eq 11 . The values of the surface-liquid tension can be found in standard heat-transfer texts ( Ref 32 , 33...
Series: ASM Handbook
Volume: 4A
Publisher: ASM International
Published: 01 August 2013
DOI: 10.31399/asm.hb.v04a.a0005814
EISBN: 978-1-62708-165-8
..., it is important that they are standardized. Although they have been designed to reduce and simplify the phenomena involved, it is still possible to obtain useful data for process design and control. For example, the hardenability of a given steel is characterized based on the Jominy end-quench test, in which...
Series: ASM Handbook
Volume: 8
Publisher: ASM International
Published: 01 January 2000
DOI: 10.31399/asm.hb.v08.a0003267
EISBN: 978-1-62708-176-4
... the equipment used for low-temperature tensile and compression tests with illustrations. It concludes with a discussion on the various test methods and their ASTM standard for compression and tension testing. tension testing compression testing mechanical properties ceramics polymers fiber-reinforced...
Series: ASM Handbook
Volume: 4A
Publisher: ASM International
Published: 01 August 2013
DOI: 10.31399/asm.hb.v04a.a0005824
EISBN: 978-1-62708-165-8
... or the necessity for a protective atmosphere. The test specimen is typically a round bar where the length is at least four times the diameter (a so-called infinite cylinder that minimizes end-cooling effects). Cooling curves are generated by inserting thermocouples into the desired locations of the test specimens...
Series: ASM Handbook
Volume: 4A
Publisher: ASM International
Published: 01 August 2013
DOI: 10.31399/asm.hb.v04a.a0005789
EISBN: 978-1-62708-165-8
...-conduction equation (HCE). Simplified 1-D Temperature-Distribution Model The standard probe is treated as a long, radially symmetrical cylinder of a given radius R = 25 mm (1.0 in.). Asymmetries and changes in the material introduced by the thermocouples are simply ignored. It is assumed that heat...