The Infona portal uses cookies, i.e. strings of text saved by a browser on the user's device. The portal can access those files and use them to remember the user's data, such as their chosen settings (screen view, interface language, etc.), or their login data. By using the Infona portal the user accepts automatic saving and using this information for portal operation purposes. More information on the subject can be found in the Privacy Policy and Terms of Service. By closing this window the user confirms that they have read the information on cookie usage, and they accept the privacy policy and the way cookies are used by the portal. You can change the cookie settings in your browser.
A CMOS–MEMS device for mass detection has been designed using 2008 CoventorWare software and fabricated using 0.35µm CMOS technology. This paper reports the characterization of the microheater and the temperature sensor embedded in the device. The measured resistances of the microheater and the temperature sensor were found to be close to the modeled values within ~4.2% error. The average temperature...
This research proposes the industrial centrifugal pump as a potential application for vibration energy harvesting. The energy harvested from the centrifugal pump will be utilized in the condition monitoring system of the pump itself. The complete test setup along with the vibration results from an industrial centrifugal pump are presented. The most optimum position on the pump is proposed based on...
The invention of WSN-based indoor positioning is to design effective personnel positioning system, monitor the personnel movement in oil and gas platform and alert the personnel if they entered a restricted area. Personnel tracking system in hazardous working environment such as in oil gas platform is very crucial due to GPS incapability inside a concrete building structure. Real-time monitoring of...
In this paper, we present an analytical model of novel plus shape MEMS paddle bridge resonant sensor to estimate electromechanical behavior, damping, electrostatic actuation and capacitive detection. The analytical model is derived using the Reynold's method for squeeze film and Rayleigh method for resonant frequency. Working in a resonant condition, the sensor's vibration amplitude is converted into...
Mechanical frequency up-conversion has been suggested by many researchers in order to increase power density of kinetic energy harvesters. In this paper analytical analysis of frequency up-conversion mechanism has been carried out in some detail. It has been shown that sources of actuation for a frequency increased generator can be categorized as force limited and displacement limited sources. Maximum...
Carbon dioxide sensors have potential applications in medical diagnoses, health care, environmental monitoring, food and medicine industry. In recent years, many novel biological, physical and chemical sensors have employed microcantilevers due to their simplicity, ease of fabrication and integration with electronics. This paper presents design, modeling and simulation of a microcantilever working...
This paper investigates the electrostatic drive, sense, spring behavior of long beams, resonant frequency, quality factor, resonator noise and damping of resonator parallel to the substrate, using an interdigitated capacitor (electrostatic comb). Resonant frequency of the device is 9.5 kHz with quality factor 104. Couette damping is dominant that is equal to 5.34×10•8. The value of Squeeze film damping...
Vibration energy harvesting has got much research interest in recent years as non-exhaustive power source of wireless sensor nodes and wearable electronics. In case of wearable electronics and body sensor network the frequency of vibration produced by human passive motion is as low as 1–10Hz. At such a low vibration frequency harvestable power reduces dramatically, leading researchers to suggest mechanical...
A novel design of 0.751MHz MEMS resonant magnetic field sensor of mass 0.775pg based on hybrid actuation technique (Lorentz force and Electrostatic force) is presented and simulated using Coventor Ware and CADENCE simulators. The sensor consists of Aluminum paddle resonator, two supporting beams, driving electrodes, sensing electrode and silicon substrate with a capacitive CMOS readout amplifier....
This paper addresses the design and application of an observer-based nonlinear controller employing a CMOS-MEMS nano-Newton force sensor. The sensor is designed using AMI 0.5μm 3-Metal 2-Polysilicon CMOS technology capable of sensing an out-of-plane force perpendicular to the probe tip; it is suitable for biomedical applications that measures external force excitation of less than 100 Hz. Measurement...
Set the date range to filter the displayed results. You can set a starting date, ending date or both. You can enter the dates manually or choose them from the calendar.