Force sensing device

A sensing device and sensor technology, which is applied in the direction of measuring device, measuring force, and measurement of the change force of the material magnetic property caused by the applied stress, can solve the problem that the patient does not understand the pressure point, and achieve a good analysis effect

Inactive Publication Date: 2017-08-01
HCI VIOCARE TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Due to diabetic peripheral neuropathy, it may be that the patient is unaware of the pressure points on their feet, and a lack of careful daily observation can lead to serious foot problems

Method used

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Embodiment Construction

[0098] figure 1 and figure 2 A pressure or force sensing device according to a first embodiment of the invention is schematically shown. This device comprises magnetic field generator 12, and in the present embodiment, magnetic field generator 12 is disc permanent magnet, as ferromagnetic material magnet, as magnetite (Fe 3 o 4 ) or Neodymium at a distance D above the magnetic field sensor 14, which in this embodiment is a Hall effect sensor such as Honeywell SS466A or Honeywell SS3OAT, although other types of magnetic fields may be used sensor. Various MEMS magnetometers are available. The distance D is achieved by installing the magnetic field generator 12 in a layer 1 made of a flexible and bendable material such as porous, foam, EVA, silicone grease, silicone or polyurethane, and between the magnetic field generator 12 and the magnetic field sensor 14 Tier 2 is provided. Layer 2 is a flexible and bendable material such as porous, foam, EVA, silicone, silicone and po...

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PUM

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Abstract

A force or pressure sensing device comprises one or more magnets (12, 406) resiliently held spaced from one or more magnetic sensors (14) such that pressure on the device displaces the magnets (12, 406) relative to the magnetic field sensors (14). The device may be incorporated into an insole (100, 110, 400) of a shoe, or integrated into a shoe, or integrated into a seat, cushion, mattress or saddle. The device includes one or more magnetic focussing elements (18) on the opposite side of the magnetic field sensor (14) from the magnets (12, 406) to focus and condition the magnetic field passing through the sensor (10, 14). The magnetic focussing elements (18) may be permanent magnets (406) or magnetic materials having a high magnetic permeability such as mu-metals. Additional magnetic focussing elements (18) may be placed adjacent to the magnets (12, 406). Plural magnetic field sensors (14) can be arranged in a symmetrical arrangement in a plane below the one or more magnets (12, 406) so that shear forces applied to the device causes lateral relative displacement of the magnet (406) and magnetic field sensors (14) changing the magnetic field sensed by the magnetic field sensors (14). The device can also include a motion detector such as an accelerometer which may be integral with the magnetic field sensor (14).

Description

technical field [0001] The invention relates to a force sensing device. Background technique [0002] The need to measure force arises in many applications. Further, there are many different technologies for providing force sensing. The force sensing device to which the present invention is particularly directed is suitable for use as a non-invasive medical / sports / fitness sensor that can be used to measure forces applied to or by the human body. By measuring force, pressure, torque and shear can be calculated. Its purpose is to provide sensing devices that can be used in wearable devices such as shoes, smart clothing, and objects that focus on forces applied to or by the human body, such as mattresses, cushions, wheelchairs, car seats, snowboards and other sports device etc. The measurement of force in these situations is invaluable for purposes such as physical rehabilitation, athletic training, or medical care goals such as avoiding pressure sores or pressure points. ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01L1/12A43B1/00A43B3/00A47C31/12
CPCA43B1/0054A47C31/12G01L1/122A47C7/62A43B3/34B68C1/02A43B17/006A43B17/02A43B17/18A47C31/00
Inventor 哈里普拉尚斯·依兰戈万克里斯托斯·卡帕托斯
Owner HCI VIOCARE TECH
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