This paper reports a novel, low-cost, moderately sensitive, meso-scale accelerometer fabricated with spring steel foil and equipped with either a Hall Effect-based proximity sensor or a capacitive sensor. Since the sensitivity of a Hall Effect sensor is low, we attach a displacement-amplifying compliant mechanism (DaCM) to the proof-mass of the accelerometer to increase the overall sensitivity ...

The compatibility of some Hall sensors with CMOS electronics allows the co-integration of sensors and electronics on the same chip to obtain a low costmicrosystem. In addition to a careful sensor design, the relationships betweenthe system components, i.e. sensors and electronics, allow us to improvesubstantially the behavior of the microsystem. The first objective of this thesi...

This paper presents the development of hall effect sensor for measuring the contamination of lubricant in industry. This technique is based on the principle of the magnetic field and Hall Effect. The magnetic field is made up of a permanent magnet which is measured by a Hall Effect sensor. The measured magnetic field can be estimated the level of contaminants in the oil by the ferrous particles...

(1) Berkeley Sensor and Actuator Center – University of California at Berkeley – 497 Cory Hall – Berkeley, California, 94704 U.S.A. Tel +1 (510) 642 4876, Fax +1 (510) 643 6637, Email [email protected] (2) Berkeley Sensor and Actuator Center – University of California at Berkeley – 497 Cory Hall – Berkeley, California, 94704 U.S.A. Tel +1 (510) 642 9360, Fax +1 (510) 643 6637, Email liepman...

We report on the preparation of the first complete extreme temperature Hall sensor. This means that the extreme-temperature magnetic sensitive semiconductor structure is built-in an extreme-temperature package especially designed for that purpose. The working temperature range of the sensor extends from -270 °C to +300 °C. The extreme-temperature Hall-sensor active element is a heavily n-doped ...

background:: this study developed a smart co 2 detector, which attach to the general ventilation system to reduce the gas level. methods: indoor air quality measurement was performed in five selected rooms between january 2015 to february 2015 using tsi q-trak tm indoor air monitor 7575. the perceived indoor air quality conditions was gathered using questionnaires adopted from the industrial co...

The novel contactless current sensors consist of an integrated CMOS Hall effect sensor covered by a thin, ferromagnetic layer structured on its surface. The Integrated Magnetic Concentrator (IMC) layer acts as a magnetic flux concentrator, providing a high magnetic gain which increases the sensor’s signal-to-noise ratio. The sensor is particularly appropriate for DC and AC current measurement. ...

A magneto-optic sensor is developed using a Terbium Doped Glass (TDG) element as a Faraday rotation sensor and optical fiber as light transmitting and receiving medium. Online LabView based application software is developed to process the sensor output. The system is used to sense the magnetic field of a DC motor field winding in industrial environment. The sensor output is compared with the ma...

Anomalous Hall effect (AHE) was recently discovered in magnetic element-doped topological insulators (TIs), which promises low power consumption and high efficiency spintronics and electronics. This discovery broadens the family of Hall sensors. In this paper, AHE sensors based on Cr-doped Bi2Te3 topological insulator thin films are studied with two thicknesses (15 and 65 nm). It is found, in b...