Temperature stable Hall effect sensors

Partin, D. L.; Heremans, Joseph P.; Schroeder, T. W.; Thrush, C. M.; Flores-Mena, L.A.

doi:10.1109/jsen.2005.860362

Cited by 16 publications

(3 citation statements)

References 11 publications

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“…According to the fingertip, the data force grasping and EMG of (AdP) muscle signals are acquired to a PC by a data acquisition card via an analog signal processing. The ratio of the Hall voltage to the input voltage of a Hall element is essentially given by the product μ.|B|, where B is the magnetic field to be measured and μ is the electron mobility of the semiconductor [10], [11]. …”

Section: Ii1 Measurement Principle Of Instrumentation Gripmentioning

confidence: 99%

A Low Cost Grip Transducer Based Instrument To Quantify Fingertip Touch Force

Boukhenous

Attari

2007

2007 29th Annual International Conference of the IEEE Engineering in Medicine and Biology Society

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In this paper, a transducer based instrument for fingertip touch force is developed. As a diagnostic tool, the system was coupled with an EMG analog signal processor, which is considered as the main basis of evaluation for motor function impairment. A software program is developed to analyze EMG signal during fingertips effort to obtain valid characteristic parameters with spectral analysis. These parameters are associated with a low cost grip transducer based on Hall Effect component developed for the improvement of fingertip movement during holding objects or training exercises. Thus, the changes on each sensor signal can be detected and monitored with the software interface. The output signal and the EMG analog processor are feeding a high resolution data acquisition system of National Instrument. Preliminary experimental tests have been carried out for the fingertip force grasping according to the Adductor Pollicis muscle (AdP) for controlling the adductive motion of the thumb. The experimental results show that the changes of dynamic fingertip force affect the muscle.

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Section: Ii1 Measurement Principle Of Instrumentation Gripmentioning

confidence: 99%

A Low Cost Grip Transducer Based Instrument To Quantify Fingertip Touch Force

Boukhenous

Attari

2007

2007 29th Annual International Conference of the IEEE Engineering in Medicine and Biology Society

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“…Recent works which brought to the interferometric techniques, such Chang et al (1998) and Kandpal et al (2000), have provided input for the development of the proposed method; this represents a new approach for torque measurements, because it allows no-contact torque measures, which do not interfere with the machine rotor dynamics as in the classical approaches for torque measurements that involve the use of strain gauges (Myers et al, 2013), accelerometers (D'Emilia et al, 2015a(D'Emilia et al, , 2016, surface acoustic wave (SAW) sensors, or a magnetic-encoder-ring or Hall effect sensing element (Cardelli et al, 2015;Fleming, 2008), that may also have problems of thermal stability (Partin et al, 2006;D'Emilia et al, 2015b). It is important to underline how such a measurement is completely contact-free, and it provides the signal only thanks to an incident coherent light on the shaft, coming out from optical fiber.…”

Section: Introductionmentioning

confidence: 99%

Development of a non-contact torque transducer based on the laser speckle contrast method

Garinei¹,

Marsili²

2017

J. Sens. Sens. Syst.

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Abstract. When a torque measurement is required, torque transducers show many drawbacks during their use: the usual limits are the need for contact and the effects on shaft line parameters. A new approach is proposed in this work: a non-contact torque meter for a machine shaft has been developed. It carries out torque measurements evaluating the torsional displacement between two distinct sections of the shaft, through the monitoring of their roughness.The sensing principle employed is the classical laser speckle contrast method. The outcoming intensity scattered by the rough surface is processed by a cross-correlation function. In this way, the angular torsion of two distinct sections is obtained. It is therefore possible to point out the applied torque knowing the shaft torsional stiffness.

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“…If necessary, a manual zero calibration will be required after production is completed. Hall sensor is susceptible to the effects of temperature [9]. When the working environment temperature rises, the voltage signal in Fig.…”

Section: Introductionmentioning

confidence: 99%

Design and Analysis of Dual Hall Position Sensor with Automatic Direction Recognizing and Pre-Positioning Function

Zhang¹,

Fang²,

Jin³

2014

AMM

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As an electromagnetic position sensor, Hall position sensor is widely used in various fields. In this paper, we discussed the working principle of the Hall sensor, and proposed a new method on direction recognizing technology. The dual Hall sensor structure has automatical direction recognizing and pre-positioning function, which can improve the adaptability of the sensor. Meanwhile, this new design can be used for other position sensor applications.

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Temperature stable Hall effect sensors

Cited by 16 publications

References 11 publications

A Low Cost Grip Transducer Based Instrument To Quantify Fingertip Touch Force

A Low Cost Grip Transducer Based Instrument To Quantify Fingertip Touch Force

Development of a non-contact torque transducer based on the laser speckle contrast method

Design and Analysis of Dual Hall Position Sensor with Automatic Direction Recognizing and Pre-Positioning Function

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