In-situ quantification of manual assembly forces and postures during the manufacture of TV deflection coils

Allen, Charles R.; Karam, K.Z.; Cam, P. Le; Hanson, Margot; Tindall, Thomas O.

doi:10.1016/s0957-4158(96)00044-x

Cited by 4 publications

(3 citation statements)

References 6 publications

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“…For forces above 20N the sensor sensitivity was only a few mV/N. An anti-logarithmic amplifier based solution for improving the sensor resolution in the higher range of loads has already been applied for biometric measurements (16) . The logarithmic amplifier has integrated several functions in one chip and accepts signals of both polarities from current or voltage sources.…”

Section: Force Sensing Sheathmentioning

confidence: 99%

Recording forces exerted on the bowel wall during colonoscopy: in vitro evaluation

Dogramadzi

Virk

Bell

et al. 2005

Int. J. Med. Robotics Comput. Assist. Surg.

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A novel system for distributed force measurement between the bowel wall and the shaft of a colonoscope is presented. The system, based on the piezoresistive method, involves the integration of soft miniature transducers to a colonoscope to enable a wide range of forces to be sensed. The attached sensing sheath does not restrict the propulsion of the colonoscope nor notably alter its flexibility. The addition of the sensor sheath increases the colonoscope diameter by 15-20% depending on the type of the colonoscope (adult or paediatric). The transducer's accuracy is +/-20 grammes if it is not subjected to extensive static forces. Under large static force conditions the errors may increase to +/-50 grammes. The tactile force measuring sensors have provided preliminary results from experiments on a model of the large bowel. The force measurements confirm the predictions on the location and magnitude of the forces and that most of the forces are exerted whilst the instrument is looping.

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Section: Force Sensing Sheathmentioning

confidence: 99%

Recording forces exerted on the bowel wall during colonoscopy: in vitro evaluation

Dogramadzi

Virk

Bell

et al. 2005

Int. J. Med. Robotics Comput. Assist. Surg.

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“…Combining the field components gives (14) Thus, for each generator coil with coordinates at , the magnetic field strength at the measurement sensor is (15) where is the index reference number for the generator coil. The e.m.f induced in the sensor coil when placed in a magnetic field [ref.…”

Section: A Three-dimensional Electromagnetic Measurementmentioning

confidence: 99%

“…In addition, a quantitative force measurement system is also used in this study to provide an objective assessment of rigidity in PD. A pair of Datacq ® gloves incorporating a set of force transducers is utilized together with a force triggering facility controlled by a PC [15]. During the assessment of tone, while the doctor, who wears the gloves, flexes and extends the patient's wrist, the force applied is fed back to the force triggering system, recorded and saved on the hard-drive for further medical analysis.…”

Section: Conclusion and Further Workmentioning

confidence: 99%

3-D motion system ("data-gloves"): application for Parkinson's disease

Allen

Geng

et al. 2003

IEEE Trans. Instrum. Meas.

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In this application, three-dimensional electromagnetic sensors have been integrated into a data-glove to accurately model and capture the motion of the human hand. By modeling the movement of the human hand, this system has been shown to accurately measure the tremor evident in subjects with Parkinson's disease (PD). It was found that 11 sensors were sufficient to model the human hand including all the phalanges. A capture rate of 10 measurements/s was achieved. A discrete Fourier analysis has been applied to extract the tremor frequency from the sensor data time series. Further, an analysis of the instantaneous speed of hand motion has been used to extract clinically significant diagnosis. The technique described is seen to provide an objective and quantitative method for the analysis of clinic conditions, such as PD and essential tremor, as a way to assess the effect of therapeutic interventions

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Rhizosphere effects on Cu availability and fractionation in sewage sludge‐amended calcareous soils

Motaghian

Hosseinpur

2015

J. Plant Nutr. Soil Sci.

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Rhizosphere processes have a major impact on copper (Cu) availability and its fractions in soils. A greenhouse experiment with wheat was performed to investigate availability (using seven chemical procedures) and fractionation of Cu in the rhizosphere of ten agricultural soils (Typic Calcixerepts) amended with sewage sludge (1% w/w) using rhizoboxes. The results show that available Cu concentrations in rhizosphere soils were significantly (P < 1%) lower than in bulk soils. In comparison with the bulk soils, in the rhizosphere soils the concentration of Cu associated with organic matter and residual Cu increased by 24 and 4%, respectively, whereas exchangeable Cu, Cu associated with iron-manganese oxides, and Cu associated with carbonate decreased by 20, 14, and 12%, respectively. Dissolved organic carbon (DOC) and Cu associated with iron-manganese oxides and Cu associated with organic matter in the rhizosphere and bulk soils were significantly correlated (P < 5%). The results show that the differences between rhizosphere and bulk soils in chemical conditions such as DOC concentrations can change the proportion of soil Cu fractions and, therefore, Cu availability for wheat in calcareous soils amended with sewage sludge. The results show that the wheat root-induced modifications of chemical and biological soil conditions do not only lead to Cu depletion in mobile soil Cu fractions, but also to modification in soil Cu fractions which are commonly considered as more stable.

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In-situ quantification of manual assembly forces and postures during the manufacture of TV deflection coils

Cited by 4 publications

References 6 publications

Recording forces exerted on the bowel wall during colonoscopy: in vitro evaluation

Recording forces exerted on the bowel wall during colonoscopy: in vitro evaluation

3-D motion system ("data-gloves"): application for Parkinson's disease

Rhizosphere effects on Cu availability and fractionation in sewage sludge‐amended calcareous soils

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