Design of Wireless Passive Multi-Grid CSRR-SIW Sensor for Temperature and Pressure Monitoring
Source abstract
Abstract
To measure temperature and pressure parameters in harsh environments such as those with high temperature and high pressure, a wireless and passive multi-grid Complementary Split-Ring Resonator and substrate integrated waveguide (MG-CSRR-SIW) structure for a temperature and pressure sensor based on microwave scattering principles and high-temperature co-fired ceramic (HTCC) technology is proposed. It can measure temperature within 25–1200 °C and pressure within 0–300 kPa. The structural design of the sensor by using high-frequency electromagnetic simulation software contributes to a linear relationship between the measured parameters and the sensor’s return loss (S11). Furthermore, the performance validation of the proposed sensor is implemented by sensor fabrication and experimentation. The test results show that the proposed sensor exhibits good performance of reliability and linearity. The temperature sensitivity is 199.33 kHz/°C and 379.75 kHz/°C in the temperature ranges of 25–475 °C and 475–1200 °C, respectively. In addition, the pressure sensitivity reaches 235.5 kHz/kPa at 800 °C. The maximum relative measurement error is 2.2% and 1.45% in regard to temperature and pressure, respectively.
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Research context
OpenAlex topics: Microwave and Dielectric Measurement Techniques · Acoustic Wave Resonator Technologies · Electrical and Thermal Properties of Materials
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
Affiliations
School of Mechanical Engineering, Nanjing University of Science and Technology, Nanjing 210094, China
China North Industries Group Corporation Limited, No. 214 Research Institute, Bengbu 233000, China
Funding
the Fundamental Research Funds for the Central Universities · Postgraduate Research & Practice Innovation Program of Jiangsu Province
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