Tapered coaxial microwave probe sensor

2004 ◽  
Vol 40 (23) ◽  
pp. 1483 ◽  
Author(s):  
L.A. Valiente ◽  
A.A.P. Gibson ◽  
A.D. Haigh
Keyword(s):  
Microwave Probe ◽  
Probe Sensor

Near field planar microwave probe sensor for nondestructive condition assessment of wood products

2018 ◽  
Vol 123 (22) ◽  
pp. 224502 ◽  
Author(s):  
Nilesh Kumar Tiwari ◽  
Surya Prakash Singh ◽  
M. Jaleel Akhtar
Keyword(s):  
Near Field ◽  
Condition Assessment ◽  
Wood Products ◽  
Microwave Probe ◽  
Probe Sensor

Novel Improved Sensitivity Planar Microwave Probe for Adulteration Detection in Edible Oils

2019 ◽  
Vol 29 (2) ◽  
pp. 164-166 ◽  
Author(s):  
Nilesh Kumar Tiwari ◽  
Surya Prakash Singh ◽  
M. Jaleel Akhtar
Keyword(s):  
Edible Oils ◽  
Microwave Probe

Investigation of the Thermal and Injury Behavior During Microwave Thermal Therapy of Porcine Kidney

2002 ◽  
Author(s):  
Xiaoming He ◽  
Shawn Mcgee ◽  
James E. Coad ◽  
Paul A. Iaizzo ◽  
David J. Swanlund ◽  
...  
Keyword(s):  
Thermal Model ◽  
Histological Study ◽  
Kidney Cortex ◽  
Cellular Injury ◽  
Bioheat Equation ◽  
Tissue Slices ◽  
Thermal Histories ◽  
Microwave Probe

In this paper, we report on the characterization of microwave therapy of normal porcine kidneys both in vitro and in vivo. This technology is being developed for eventual use in the treatment of small renal cell carcinoma (RCC) by minimally invasive procedures. During experiments, microwave energy was applied through an interstitial microwave probe (Urologix, Plymouth, MN) to the kidney cortex with occasional involvement of the kidney medulla. The thermal histories at several locations were recorded. After treatment, the kidneys were bisected and small tissue slices were cut out at approximately the same depth as the thermal probes. The tissue slices were further processed for histological study. Both cellular injury and the area of microvascular stasis were quantitatively evaluated by histology. Absolute rate kinetic models of cellular injury and vascular stasis were developed and fit to this data. A 3-D finite element thermal model based on the Pennes Bioheat equation was developed and solved using a commercial software package (ANSYS, V5.7). The Specific Absorption Rate (SAR) of the microwave probe was measured experimentally in tissue equivalent gel-like solution. The thermal model was first validated by the measured in vitro thermal histories. It was then used to determine the blood perfusion term in vivo.

scholarly journals Newly devised microwave probe and pincett with thermal control system

1992 ◽  
Vol 10 (0) ◽  
pp. 35-40
Author(s):  
Hiroshi Iseki ◽  
Hiroko Kawabatake ◽  
Tatsuya Tanikawa ◽  
Hirotsune Kawamura ◽  
Yukiya Iwata ◽  
...  
Keyword(s):  
Control System ◽  
Thermal Control ◽  
Thermal Control System ◽  
Microwave Probe

scholarly journals Toward Development of a Vocal Fold Contact Pressure Probe: Sensor Characterization and Validation Using Synthetic Vocal Fold Models

2019 ◽  
Vol 9 (15) ◽  
pp. 3002 ◽  
Author(s):  
Mohsen Motie-Shirazi ◽  
Matías Zañartu ◽  
Sean D. Peterson ◽  
Daryush D. Mehta ◽  
James B. Kobler ◽  
...  
Keyword(s):  
Contact Pressure ◽  
Vocal Fold ◽  
Ground Truth ◽  
Pressure Probe ◽  
Primary Role ◽  
Novel Approach ◽  
Sensor Position ◽  
Probe Sensor ◽  
Contact Pressures

Excessive vocal fold collision pressures during phonation are considered to play a primary role in the formation of benign vocal fold lesions, such as nodules. The ability to accurately and reliably acquire intraglottal pressure has the potential to provide unique insights into the pathophysiology of phonotrauma. Difficulties arise, however, in directly measuring vocal fold contact pressures due to physical intrusion from the sensor that may disrupt the contact mechanics, as well as difficulty in determining probe/sensor position relative to the contact location. These issues are quantified and addressed through the implementation of a novel approach for identifying the timing and location of vocal fold contact, and measuring intraglottal and vocal fold contact pressures via a pressure probe embedded in the wall of a hemi-laryngeal flow facility. The accuracy and sensitivity of the pressure measurements are validated against ground truth values. Application to in vivo approaches are assessed by acquiring intraglottal and VF contact pressures using a synthetic, self-oscillating vocal fold model in a hemi-laryngeal configuration, where the sensitivity of the measured intraglottal and vocal fold contact pressure relative to the sensor position is explored.

High-sensitivity surface characterization with injected carriers by lasers beam using focused reflectance microwave probe method

1990 ◽  
Vol 103 (1-4) ◽  
pp. 179-187 ◽  
Author(s):  
Akira Usami ◽  
Noboru Yamada ◽  
Kazunori Matsuki ◽  
Tsutomu Takeuchi ◽  
Takao Wada
Keyword(s):  
Surface Characterization ◽  
High Sensitivity ◽  
Probe Method ◽  
Microwave Probe
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