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Author: Publisher: ISBN: Category : Temperature measurements Languages : en Pages : 21
Book Description
When data were being gathered in 1961 for National Bureau of Standards Monograph 40 [3] on Thermocouple Materials, a section was included to cover ceramic packed thermocouple stock "because of the wide use and increasing popularity." New uses continue to be found for this unique hetrogeneous materials combination. Compacted ceramic insulated thermocouple material consists of three parts as shown in Fig. 21. The advantages of this configuration are: 1. It isolates the thermocouple wires from environments that may cause rapid deterioration. 2. It reduces long term calibration drift. 3. It lessens temperature versus wire size problems. 4. It provides an excellent high temperature insulation for thermocouple wires. 5. The sheath can be made of a metal compatible with the process in which it is being used and bears the brunt of the environmental effects. 6. It is easy to use: a. Forms easily and retains the bent configuration. b. The sheath can be welded without loss of insulation. c. Available in a wide variety of sizes and materials. d. Readily fabricated into finished thermocouple assemblies with minimum of technique and equipment. e. Useful at high pressures or high temperatures or both. 7. It is inexpensive as a finished thermocouple.
Author: Publisher: ISBN: Category : Temperature measurements Languages : en Pages : 21
Book Description
When data were being gathered in 1961 for National Bureau of Standards Monograph 40 [3] on Thermocouple Materials, a section was included to cover ceramic packed thermocouple stock "because of the wide use and increasing popularity." New uses continue to be found for this unique hetrogeneous materials combination. Compacted ceramic insulated thermocouple material consists of three parts as shown in Fig. 21. The advantages of this configuration are: 1. It isolates the thermocouple wires from environments that may cause rapid deterioration. 2. It reduces long term calibration drift. 3. It lessens temperature versus wire size problems. 4. It provides an excellent high temperature insulation for thermocouple wires. 5. The sheath can be made of a metal compatible with the process in which it is being used and bears the brunt of the environmental effects. 6. It is easy to use: a. Forms easily and retains the bent configuration. b. The sheath can be welded without loss of insulation. c. Available in a wide variety of sizes and materials. d. Readily fabricated into finished thermocouple assemblies with minimum of technique and equipment. e. Useful at high pressures or high temperatures or both. 7. It is inexpensive as a finished thermocouple.
Author: Publisher: ISBN: Category : Temperature measurements Languages : en Pages : 16
Book Description
Compacted ceramic insulated themocouple material consists of three parts as shown in Fig. 5.1. This type of thermocouple is in common use because it isolates the thermocouple wires from environments that may cause rapid deterioration and provides excellent high-temperature insulation for thermocouple wires. The sheath can be made of a metal compatible with the process in which it is being used and provides mechanical protection. The material is easy to use because it forms easily, retains the bent configuration, and is readily fabricated into finished thermocouple assemblies.
Author: Publisher: ISBN: 9780803145245 Category : Temperature measurements Languages : en Pages : 25
Book Description
A complete thermocouple temperature sensing assembly, in accordance with the present state of the art, consists of one or more of the following: A. Sensing Element Assembly B. Protecting Tube C. Thermowell D. Terminations E. Miscellaneous Hardware.
Author: Publisher: ISBN: Category : Temperature measurements Languages : en Pages : 19
Book Description
A complete thermocouple temperature sensing assembly, in accordance with the present state of the art, consists of one or more of the following: A. Sensing Element Assembly--In its most basic form this assembly includes two dissimilar wires, supported or separated or both by electrical insulation and joined at one end to form a measuring junction. Such assemblies usually fall into one of three categories; (1) those formed from wires having nonceramic insulation, (2) those with hard-fired ceramic insulators, and (3) those made from sheathed, compacted ceramic-insulated wires. This chapter will deal only with the first two. See Chapter 5 for complete details on the latter.
Author: Trietley Publisher: CRC Press ISBN: 9780824775988 Category : Technology & Engineering Languages : en Pages : 400
Book Description
This single-source reference provides vital information on the operation, features, circuits, and applications of various transducers, including those used in temperature, pressure, position, flow, vibration, shock, acceleration, conductivity, pH, and other measurements. Transducers in Mechanical and Electronic Design presents typical circuitry of potentiometers, sensors, semiconductors, and electrochemical devices ... shows how to select the right sensor and obtain the best possible performance ... summarizes specifications, applications, and comparisons in charts and tables for easy reference ... describes the transducers and techniques available for accurate measurements and easier, more precise readouts ... includes considerations for interfacing to computers ... provides necessary background theory and reviews the basics of measurement circuitry ... and contains numerous photographs, line drawings, and bibliographic citations to further research sources. Transducers in Mechanical and Electronic Design provides the one-stop source for mechanical, design, electrical, electronics, and control engineers; instrument and system designers; and technicians involved in selecting transducers as components in systems or instruments. Book jacket.
Author: Publisher: ISBN: Category : Calibration Languages : en Pages : 16
Book Description
A complete thermocouple temperature sensing assembly, in accordance with the present state of the art, consists of the following: A. Sensing element assembly including, in its most basic form, two dissimilar wires, supported by an electrical insulator and joined at one end to form a measuring junction. Such assemblies usually fall into one of three categories; those formed from wires have nonceramic insulation, those with hard-fired ceramic insulators, and those made from sheathed, compacted ceramic-insulated wires.
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Author: American Society for Testing and Materials
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Author: Raymond Hollanda
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Author: Trietley
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