Questions tagged [mems]

Microelectromechanical systems (MEMS) are very small electromechanical devices. Common devices made using the technology include accelerometers, gyroscopes and microphones.

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Sampling DC and AC components of capacitive sensor

I'm using a MEMS capacitive pressure sensor SCB10H. As I understand it, I can wire it up in one of two ways. Either I can measure the absolute capacitance using a chip like the TI FDC1004. In this ...
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How to improve AHRS algorithm

I'm currently working on a project with multiple IMUs mounted on moving vehicle estimating their pose. I've just read about AHRS algorithms. So I have two questions about them: Since my data is pre-...
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858 views

Reading FIFO in LSM6DS3

What is the difference between reading the FIFO registers(FIFO_DATA_OUT_L,FIFO_DATA_OUT_H) and Sensor output registers(OUTX_L_XL to OUTZ_H_XL) both are same?which is recommended to get the raw data ...
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Best possible specs for a MEMS mic in 2014?

I want to use the best MEMS mic that's on the market today (June 2014) in terms of audio quality. Since I know that "shopping" questions are forbidden, I'll phrase it like this: What are considered ...
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Frequency response of accelerometer MMA7361L

In order to create the model of the MEMS accelerometer MMA7361L I'm going to need the frequency response of it, but I don't have access to the university lab to use the oscilloscope because of the ...
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How to compute the substrate doping concentration given parameters to compute Effective Gate Length?

I have been struggling with this homework question all weekend, and given it's Easter, I turn to the mercy of your all's wisdom given my University resources are unavailable. Any help you all could ...
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Looking for the library of the accelerometer MMA7361L or an equivalent in Proteus

I want to draw the transfer function of the accelerometer that I am using, which is the MMA7361L, using Proteus. Can you please help me to find it or to find an equivalent?
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34 views

MPU 6050 accelerometer generating gaussian noise with strange gaps

I was using an GY-521 accelerometer/gyroscope module in order to provide inertial tracking. The GY-521 interfaces with an Arduino which sends data over a serial connection. I convert these values into ...
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33 views

Capacitance calculation of comb-drive actuator

I just want to make sure that I am performing this calculation correctly... From this COMSOL study, I gathered the following info... $$C_t = N\frac{\varepsilon_o\varepsilon_rl_ot}{d}$$ $$C_f = \...
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57 views

Question about a capacitance to voltage converter

I followed a MEMS course made basically of seminars. The examination is just the presentation of a scientific article. I've been given an article in which the Authors present a MEMS inclinometer ("...
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321 views

Understanding Pressure MEMS Technical Information (Relative and Absolute Accuracy)

In my research, I use smartphones pressure sensor data, and I need to understand their errors and limitations. I found the technical chart for the sensor: But I don't really understand the meaning of ...
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66 views

Heat generation rate to temperature

I have heatgeneration rate in W/m3 and I wanted to know how much temperature it can generate. The heatgeneration element is Platinum resistor for MEMS project. I want to know numerical relation? ...