A chromel-constantan coaxial surface junction thermocouple has been designed, fabricated, calibrated, and tested to measure the temperature-time history on the surface of a body in a hypersonic freestream of Mach 8 in a shock tunnel. The coaxial thermocouple with a diameter of 3.25 mm was flush mounted in the surface of a hemisphere of 25 mm diameter. The hypersonic freestream was of a very low temperature and density, and had a flow time of about a millisecond. Preliminary test results indicate that the thermocouple is quite sensitive to low temperature-rarefied freestreams, and also has a response time of a few microseconds to meet the requirements of short duration transient measurements. The sensor developed is accurate, robust, reproducible, and is highly inexpensive.
Skip Nav Destination
Article navigation
October 2010
Research Article|
October 25 2010
A coaxial thermocouple for shock tunnel applications Available to Purchase
Viren Menezes;
Viren Menezes
a)
Department of Aerospace Engineering,
Indian Institute of Technology Bombay
, Powai, Mumbai 400-076, India
Search for other works by this author on:
Sandeep Bhat
Sandeep Bhat
Department of Aerospace Engineering,
Indian Institute of Technology Bombay
, Powai, Mumbai 400-076, India
Search for other works by this author on:
Viren Menezes
a)
Department of Aerospace Engineering,
Indian Institute of Technology Bombay
, Powai, Mumbai 400-076, India
Sandeep Bhat
Department of Aerospace Engineering,
Indian Institute of Technology Bombay
, Powai, Mumbai 400-076, India
a)
Author to whom correspondence should be addressed. Tel.: +91-22-2576-7130. FAX: +91-22-2572-2602. Electronic mail: [email protected].
Rev. Sci. Instrum. 81, 104905 (2010)
Article history
Received:
July 05 2010
Accepted:
September 06 2010
Citation
Viren Menezes, Sandeep Bhat; A coaxial thermocouple for shock tunnel applications. Rev. Sci. Instrum. 1 October 2010; 81 (10): 104905. https://doi.org/10.1063/1.3494605
Download citation file:
Pay-Per-View Access
$40.00
Sign In
You could not be signed in. Please check your credentials and make sure you have an active account and try again.
Citing articles via
Overview of the early campaign diagnostics for the SPARC tokamak (invited)
M. L. Reinke, I. Abramovic, et al.
Controlled partial gravity platform for milligravity in drop tower experiments
Kolja Joeris, Matthias Keulen, et al.
An instrumentation guide to measuring thermal conductivity using frequency domain thermoreflectance (FDTR)
Dylan J. Kirsch, Joshua Martin, et al.
Related Content
Low temperature thermometry in high magnetic fields. III. Carbon resistors (0.5–4.2 K); thermocouples.
Rev. Sci. Instrum. (January 1974)
Specific heats of type E thermocouple wires
Rev. Sci. Instrum. (July 1993)
Thermocouple temperature measurements in shock‐compressed solids
J. Appl. Phys. (October 1980)
Effect of Pressure on emf of Thermocouples
J. Appl. Phys. (March 1961)
Development of Surface Junction Thermocouples for High Enthalpy Measurements
AIP Conf. Proc. (May 2006)