A 180 nm CMOS smart ultrasonic water flow meter circuit for IoT smart society
A 180 nm CMOS smart ultrasonic water flow meter circuit for IoT smart society
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DOI：
10.35848/1347-4065/abe99b
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发表时间：
2021-02
影响因子：
1.5
通讯作者：
Yuta Kaga;K. Johguchi
中科院分区：
文献类型：
--
作者：
Yuta Kaga;K. Johguchi
提出了一种超声波水流量计作为物联网智能仪表。该系统采用标准的180 nm CMOS工艺设计。为了同时实现高精度和低功耗，还提出了时间缩放和自校准方法。利用自行设计的测试板对制作好的芯片进行了测试，测试结果验证了系统的正确性。由于所提出的校正方法和设计的电路，所提出的智能水流量计可以可行地用作下一代智能仪表。
This paper proposes an ultrasonic water flow meter to be used as an internet of things smart meter. The proposed system is designed with a standard 180 nm CMOS technology. Time-zooming and self-calibration methods are also presented to achieve high accuracy and low power simultaneously. The measurement for the fabricated chip was carried out by using a custom-designed test board, and results verified that the system can perform correctly. Thanks to the proposed correction methods and designed circuit, the proposed smart water flow meter can feasibly be used as a next-generation smart meter.