| アイテムタイプ |
学術雑誌論文 / Journal Article(1) |
| 公開日 |
2024-02-05 |
| タイトル |
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タイトル |
A wide dynamic range diamond quantum sensor as an electric vehicle battery monitor |
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言語 |
en |
| 言語 |
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言語 |
eng |
| 資源タイプ |
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資源タイプ識別子 |
http://purl.org/coar/resource_type/c_6501 |
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資源タイプ |
journal article |
| 著者 |
Yuji Hatano
Junya Tanigawa
Akimichi Nakazono
Takeharu Sekiguchi
Onoda Shinobu
Ohshima Takeshi
Takayuki Iwasaki
Mutsuko Hatano
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| 抄録 |
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内容記述タイプ |
Abstract |
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内容記述 |
To demonstrate the application capability of the diamond quantum sensor as an electric vehicle (EV) battery monitor, we (i) investigated the measurable current in a real car noise level and (ii) compared the linearity with conventional sensors. Consequently, (i) we could measure a 20 mA current pulse even under an external magnetic field of 80 μT, which is larger than that of 50 μT around the EV battery module in a real car during driving. The 20 mA pulse measurement corresponds to the EV battery state of charge estimation accuracy of 0.2% in the standard driving pattern, which is smaller than the present level of 10%. (ii) The linearity degradation seen in the Hall sensor near the upper limit of the measurement range was not seen in the diamond sensor. Although the Hall sensor and the shunt resistor showed linearity degradation in the current range of several tens of amperes or less, the degradation was smaller for the diamond sensor. The transverse magnetic field effect in the diamond sensor on the linearity was estimated to be less than 0.01% for a several-degree misalignment of the sensor surface to the magnetic field direction and under a 340 A current. |
| 書誌情報 |
Philosophical Transactions A
発行日 2023-12
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| DOI |
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識別子タイプ |
DOI |
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関連識別子 |
10.1098/rsta.2022.0312 |
