A conductive polymer sensor for measuring external finger forces

Jensen, Todd R.; Radwin, Robert G.; Webster, John G.

doi:10.1016/0021-9290(91)90310-j

Cited by 85 publications

(36 citation statements)

References 10 publications

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“…The diameter of the sensing element used was 12 mm compared to 4-mm diameter of the silicon sensor described in this study. The errors listed in Table II are similar to those reported by Jensen et al [9]. This is encouraging since the sensor system described here is new, and we believe improvements are possible.…”

Section: Sensor Performancesupporting

confidence: 88%

“…Jensen et al [9] performed similar experiments using conductive polymer sensors. Individual finger forces were measured and compared to the total force measured by a dynamometer.…”

Section: Sensor Performancementioning

confidence: 96%

“…Usable force sensors have been developed [4], [9], but a true tactile sensor has not. Many types of commercially available sensors have been investigated to some degree for applications in tactile sensing [3], [10].…”

Section: B Tactile Sensorsmentioning

confidence: 99%

“…Although these sensors are durable, they are pressure sensitive devices rather than true force sensors [15]. A conductive polymer force sensor for attaching to the palmar surface of the hand has been developed and rigorously tested [9]. Kaczmarek, et al [16] has developed an electrotactile stimulation system which utilizes a glove with conductive polymer pressure sensors.…”

Section: B Tactile Sensorsmentioning

confidence: 99%

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A silicon-based tactile sensor for finger-mounted applications

Beebe

Denton

Radwin

et al. 1998

IEEE Trans. Biomed. Eng.

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Section: Sensor Performancesupporting

confidence: 88%

“…Jensen et al [9] performed similar experiments using conductive polymer sensors. Individual finger forces were measured and compared to the total force measured by a dynamometer.…”

Section: Sensor Performancementioning

confidence: 96%

Section: B Tactile Sensorsmentioning

confidence: 99%

Section: B Tactile Sensorsmentioning

confidence: 99%

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A silicon-based tactile sensor for finger-mounted applications

Beebe

Denton

Radwin

et al. 1998

IEEE Trans. Biomed. Eng.

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“…In all of the above applications, the measurement of both the normal and shear components of an applied load would be beneficial. Many types of normal force sensors [4]- [14] and a few shear sensors (discussed below) have been developed via a variety of transduction methods for use in robotics, industry, and medicine [15]. Compared with measuring pressure or normal force, measuring shear force can be challenging.…”

Section: Introductionmentioning

confidence: 99%

Characterization of a silicon-based shear-force sensor on human subjects

Wang¹,

Beebe

2002

IEEE Trans. Biomed. Eng.

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Abstract-A silicon sensor is developed and its ability to measure both compressive and shear forces at the skin-object interface is characterized. The sensor is designed based on the piezoresistive effect and fabricated using integrated circuit and microelectromechanical systems technologies. The sensor utilizes a mesa structure that leads to asymmetric diaphragm deformations in response to nonnormal loading. Four independent ion-implanted piezoresistors are used to detect the stresses induced in diaphragm and resolve both the compressive-and shear-force components. The sensor is calibrated on human subjects over a range of applied force (5-to 40-N shear force at increments of 1.25 N; 0-to 30-N compressive force). Force measurement via a tracking experiment is evaluated at four shear (9, 18, 25, and 35 N) and three compressive (7, 15, and 26 N) force levels. The sensor has good repeatability (SD = 1.7 N) with an average error of 12.1%.

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Pressure Sensors

Mootanah

Bader

2006

Wiley Encyclopedia of Biomedical Engineering

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Pressure sensors in biomedical applications are very important because they provide data that may be used to assess physiological function, diagnose disease, and provide for appropriate treatment regimens. Pressure sensors have a large number of applications in biomedicine, in particular, for the measurement of interface pressures and internal pressures. The interface pressures can be measured using conductive polymer pressure sensors, semiconductor strain gauges, metal strain gauges, capacitive pressure sensors, and optoelectronic pressure sensors. Internal pressures can be measured, using the needle manometer method, the Wick catheter method, integrated circuit implantable sensors, and fiber‐optic catheters. The packaging materials of internal pressure sensors are manufactured from biocompatible covering materials to avoid tissue infection and change in sensor characteristics over time. The first section of the chapter outlines the general forms of pressure measurement systems and their characteristics, including performance, accuracy, loading effects, noise, and reliability, which is followed by a detailed summary of instruments and measurement systems in biomedical applications for specific types of pressure measurements. The final section presents the theory behind the components used to form the measurement systems, in particular, the pressure‐sensing elements, transduction.

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A conductive polymer sensor for measuring external finger forces

Cited by 85 publications

References 10 publications

A silicon-based tactile sensor for finger-mounted applications

A silicon-based tactile sensor for finger-mounted applications

Characterization of a silicon-based shear-force sensor on human subjects

Pressure Sensors

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