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Wireless MEMS Accelerometer for Real-Time Small Laboratory Animal Activity Monitoring

Lu, Cheng-Kuan

Abstract Details

2008, Master of Sciences (Engineering), Case Western Reserve University, Electrical Engineering.
This thesis focuses on wireless activity sensor development. A lateral-axis differential capacitive MEMS accelerometer is designed and fabricated in MUMPs process. This device occupied an area of 1 mm × 1 mm and achieves a nominal capacitance value of 1.4 pF with a differential sensitivity of 4 fF/g. The low frequency activity signal sensed by the accelerometer is first modulated to a 1.8 kHz sub-carrier frequency and then transmitted by an FM Colpitts VCO transmitter operating at 30 MHz. The prototype wireless activity sensing system occupies an area of 33 mm × 22 mm and weighs 5 grams including battery. The system has been characterized with an untethered laboratory mouse. The received signal shows various acceleration waveforms corresponding to different types of mouse activities. The MEMS accelerometer and interface circuit can be potentially integrated with other biological sensors to achieve a miniature implantable biosensing system.
Darrin Young (Advisor)
62 p.

Recommended Citations

Citations

  • Lu, C.-K. (2008). Wireless MEMS Accelerometer for Real-Time Small Laboratory Animal Activity Monitoring [Master's thesis, Case Western Reserve University]. OhioLINK Electronic Theses and Dissertations Center. http://rave.ohiolink.edu/etdc/view?acc_num=case1196195866

    APA Style (7th edition)

  • Lu, Cheng-Kuan. Wireless MEMS Accelerometer for Real-Time Small Laboratory Animal Activity Monitoring. 2008. Case Western Reserve University, Master's thesis. OhioLINK Electronic Theses and Dissertations Center, http://rave.ohiolink.edu/etdc/view?acc_num=case1196195866.

    MLA Style (8th edition)

  • Lu, Cheng-Kuan. "Wireless MEMS Accelerometer for Real-Time Small Laboratory Animal Activity Monitoring." Master's thesis, Case Western Reserve University, 2008. http://rave.ohiolink.edu/etdc/view?acc_num=case1196195866

    Chicago Manual of Style (17th edition)