Multiple temperature sensors embedded in an ultrasonic “spiral-like” waveguide
This paper studies the propagation of ultrasound in spiral waveguides, towards distributed temperature measurements on a plane. Finite Element (FE) approach was used for understanding the velocity behaviour and consequently designing the spiral waveguide. Temperature measurements were experimentally...
| Main Authors: | , , |
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| Format: | Article |
| Language: | English |
| Published: |
AIP Publishing LLC
2017-03-01
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| Series: | AIP Advances |
| Online Access: | http://dx.doi.org/10.1063/1.4977965 |
| _version_ | 1818484423922810880 |
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| author | Suresh Periyannan Prabhu Rajagopal Krishnan Balasubramaniam |
| author_facet | Suresh Periyannan Prabhu Rajagopal Krishnan Balasubramaniam |
| author_sort | Suresh Periyannan |
| collection | DOAJ |
| description | This paper studies the propagation of ultrasound in spiral waveguides, towards distributed temperature measurements on a plane. Finite Element (FE) approach was used for understanding the velocity behaviour and consequently designing the spiral waveguide. Temperature measurements were experimentally carried out on planar surface inside a hot chamber. Transduction was performed using a piezo-electric crystal that is attached to one end of the waveguide. Lower order axisymmetric guided ultrasonic modes L(0,1) and T(0,1) were employed. Notches were introduced along the waveguide to obtain ultrasonic wave reflections. Time of fight (TOF) differences between the pre-defined reflectors (notches) located on the waveguides were used to infer local temperatures. The ultrasonic temperature measurements were compared with commercially available thermocouples. |
| first_indexed | 2024-12-10T15:55:19Z |
| format | Article |
| id | doaj.art-4b033ad8eec5473a8f5114c07a20deee |
| institution | Directory Open Access Journal |
| issn | 2158-3226 |
| language | English |
| last_indexed | 2024-12-10T15:55:19Z |
| publishDate | 2017-03-01 |
| publisher | AIP Publishing LLC |
| record_format | Article |
| series | AIP Advances |
| spelling | doaj.art-4b033ad8eec5473a8f5114c07a20deee2022-12-22T01:42:40ZengAIP Publishing LLCAIP Advances2158-32262017-03-0173035201035201-810.1063/1.4977965067702ADVMultiple temperature sensors embedded in an ultrasonic “spiral-like” waveguideSuresh Periyannan0Prabhu Rajagopal1Krishnan Balasubramaniam2Centre for Non Destructive Evaluation and Department of Mechanical Engineering, Indian Institute of Technology Madras, Chennai, Tamil Nadu 600 036, IndiaCentre for Non Destructive Evaluation and Department of Mechanical Engineering, Indian Institute of Technology Madras, Chennai, Tamil Nadu 600 036, IndiaCentre for Non Destructive Evaluation and Department of Mechanical Engineering, Indian Institute of Technology Madras, Chennai, Tamil Nadu 600 036, IndiaThis paper studies the propagation of ultrasound in spiral waveguides, towards distributed temperature measurements on a plane. Finite Element (FE) approach was used for understanding the velocity behaviour and consequently designing the spiral waveguide. Temperature measurements were experimentally carried out on planar surface inside a hot chamber. Transduction was performed using a piezo-electric crystal that is attached to one end of the waveguide. Lower order axisymmetric guided ultrasonic modes L(0,1) and T(0,1) were employed. Notches were introduced along the waveguide to obtain ultrasonic wave reflections. Time of fight (TOF) differences between the pre-defined reflectors (notches) located on the waveguides were used to infer local temperatures. The ultrasonic temperature measurements were compared with commercially available thermocouples.http://dx.doi.org/10.1063/1.4977965 |
| spellingShingle | Suresh Periyannan Prabhu Rajagopal Krishnan Balasubramaniam Multiple temperature sensors embedded in an ultrasonic “spiral-like” waveguide AIP Advances |
| title | Multiple temperature sensors embedded in an ultrasonic “spiral-like” waveguide |
| title_full | Multiple temperature sensors embedded in an ultrasonic “spiral-like” waveguide |
| title_fullStr | Multiple temperature sensors embedded in an ultrasonic “spiral-like” waveguide |
| title_full_unstemmed | Multiple temperature sensors embedded in an ultrasonic “spiral-like” waveguide |
| title_short | Multiple temperature sensors embedded in an ultrasonic “spiral-like” waveguide |
| title_sort | multiple temperature sensors embedded in an ultrasonic spiral like waveguide |
| url | http://dx.doi.org/10.1063/1.4977965 |
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