近年來，全球興起「工業4.0」之後，工具機產業資訊化成為近幾年來提升產業水平的重要指標，而加速規感測器在機台故障監測診斷中扮演重要的角色，如果能透過無線傳輸傳遞感測器的訊號，更能進一步的應用於物聯網上。本篇論文為一個壓電式微機電加速規無線傳輸系統開發計畫的一個分項，目的為設計一個可以讀取加速規原始訊號的感測晶片，同時具有放大以及濾波的功能，使得整個加速規系統能夠有好的效能，且更貼進智慧機械的應用情境。
本晶片使用台灣積體電路公司(TSMC)提供之0.18μm 1P6M Mixed-signal Standard CMOS 製程，晶片總面積為1.408×1.733mm^2，並採用DIP 28 S/B進行封裝，晶片內部主要包含四個部分，分別是讀取電路、兩個不同型式的濾波電路以及放大電路，其中本篇論文提出的讀取電路可以改變來自加速規訊號的直流準位，使加速規較不容易因為製程偏移所造成的直流偏壓電壓而損壞，此晶片與加速規整合後，可以使整個加速規系統量測頻寬達導1–3kHz，量測G值為±10g，且靈敏度達到100mV/g以上。

Accelerometer sensors play an important role in machine malfunction monitoring. In addition, if the sensed signal of accelerometers could be transmitted wirelessly, it could be further applied to internet of things (IoT) applications. This thesis propose an accelerometer-sensing chip, which is a part of a wireless lead-free piezoelectric MEMS accelerometers system. The proposed sensing chip could sense and amplify the original signal from accelerometers, and then filter out noise, including 60-Hz noise. As a result, the whole accelerometers system could have better performance and fit for the need of intelligence machine.
The proposed chip is fabricated by TSMC 0.18μm 1P6M mixed-signal standard CMOS process, and the chip area is 2.44 mm2. This chip consists of four parts: a front-end sensing circuit, two types of filter circuits, and amplifying circuits. Among them, the front-end sensing circuit can change the bias of the signal from accelerometers, which prevents the accelerometers from being damaged by the offset voltages caused by process variations. According to measurement results, the accelerometers system can achieve 100mV/g sensitivity and 1–3 kHz bandwidth.

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