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Simulation results using multiple frequency continuous wave method (MFcw) technique.

Simulation results using multiple frequency continuous wave method (MFcw) technique.

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Article
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Temperature measurement is one of the most important aspects of manufacturing. There have been many temperature measuring techniques applied for obtaining workpiece temperature in different types of manufacturing processes. The main limitations of conventional sensors have been the inability to indicate the core temperature of workpieces and the lo...

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Context 1
... relatively low frequencies of 0.6 and 0.5 MHz were used to estimate ultrasonic velocity through phase-shift-this is the TFcw technique. Thereafter, based on Equation (3) Table 3 respectively. Table 3 respectively. ...
Context 2
... based on Equation (3) Table 3 respectively. Table 3 respectively. ...
Context 3
... based on Equation (3), 0.5, 0.51 and 10 MHz were used to improve the sensitivity of the simulation for a 0.1 °C change in temperature (MFcw). The results for the simulations are given in the Figure 4a,b and Table 3 respectively. The result of the simulation with 5 MHz transducer and 15 mm steel plate is given in Figure 5. ...

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Citations

... Under the experimental conditions, the average absolute error is 0.0542m/s, and sensitivity is higher than that of many current commercial products. Reference [33] shows, phase measurement technology is used to obtain the core temperature of the workpiece metal, and the maximum resolution can reach 0.1℃. Reference [34] shows, the improved phase measurement method is used to realize the design of high accuracy air-coupled reflective ultrasonic rangefinder. ...
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