| Budget Amount *help |
¥4,680,000 (Direct Cost: ¥3,600,000、Indirect Cost: ¥1,080,000)
Fiscal Year 2018: ¥1,170,000 (Direct Cost: ¥900,000、Indirect Cost: ¥270,000)
Fiscal Year 2017: ¥1,300,000 (Direct Cost: ¥1,000,000、Indirect Cost: ¥300,000)
Fiscal Year 2016: ¥2,210,000 (Direct Cost: ¥1,700,000、Indirect Cost: ¥510,000)
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| Outline of Final Research Achievements |
By selecting plurality of signals in the fetus electrocardiographic signal measuring system, it is possible to measure even when the mother moves. In this study, we proposed an amplifier that can amplify multiple signals in order to make it possible to use many sensors in the measurement system for electrocardiographic signal of the fetus. The proposed circuit can amplify multiple input signals by switching them in time division. When a DC voltage is included in the measurement signals, the DC voltage is suppressed. Therefore the amplifier is prevented from being saturated even when it has a large voltage gain.
Performances of the proposed amplifier are clarified theoretically and experimentally.
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