نتایج جستجو برای: accelerometer
تعداد نتایج: 7304 فیلتر نتایج به سال:
The monitoring of accelerations is essential for a variety of applications ranging from inertial navigation to consumer electronics [1]. The basic operation principle of an accelerometer is to measure the displacement of a flexibly mounted test mass; sensitive displacement measurement can be realized using capacitive [2, 3], piezo-electric [4], tunnel-current [5], or optical [6–9] methods. Whil...
You work in a characterization laboratory af a MEMS company, and you have to design an electronic board in order to test a given capacitive accelerometer. The application of the sensor is vibration monitoring on a mechanical engine in a specific frequency range (from 40 Hz to 400 Hz). The MEMS device has a mass of 8nK g , a mechanical stiffness of 5N /m and a quality factor Q = 2. The capacitiv...
This paper describes an accelerometer based gait analysis system for the assessment of fall risk. The assessment is based on 22 different features calculated from the signal. The different features are combined using machine learning algorithms in order to decide whether the subject has an increased fall risk. Results from Naive Bayes, Neural Networks, Locally Weighted Learning, Support Vector ...
Considering the wide applications of accelerometers to determine position and attitude and due to reducing of accuracy of this sensors because of some errors, this paper discusses the calibration of accelerometers. Also because the traditional calibration methods are very time consuming, costly and need precision laboratory equipment, in-field calibration methods are recommended which are simpl...
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