Flexible sole force measuring system
A measurement system and foot force sensor technology, applied in the field of sensor measurement, can solve problems such as large hysteresis, poor sensor consistency, and slow response, and achieve high precision, reliable performance, and fast response
Inactive Publication Date: 2013-10-16
XI AN JIAOTONG UNIV
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Problems solved by technology
Although there are many types of sensors that can be used for plantar force measurement, their application effects are limited to varying degrees due to factors such as measurement accuracy and reliability, especially the plantar force sensor with conductive rubber as the sensitive unit has hysteresis Problems such as large size, slow response, and poor consistency between the sensitive units of the sensor
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[0014] The structural principle and working principle of the present invention will be described in detail below in conjunction with the accompanying drawings.
[0015] see figure 1 , a flexible plantar force measurement system, comprising a sole 1, a first plantar force sensor 2 is arranged at the first metatarsophalangeal joint of the sole 1, a second plantar force sensor 3 is arranged at the second metatarsophalangeal joint, and a fourth plantar force sensor 3 is arranged at the fourth metatarsophalangeal joint The third plantar force sensor 4 is arranged at the fifth metatarsophalangeal joint, the fourth plantar force sensor 5 is arranged, the first plantar force sensor 2, the second plantar force sensor 3, the third plantar force sensor 4, and the fourth plantar force sensor The power lead of 5 links to each other with power supply A, and the signal output leads 9 of the first plantar force sensor 2, the second plantar force sensor 3, the 3rd plantar force sensor 4, the 4...
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The invention relates to a flexible sole force measuring system, comprising a sole, wherein four physiological load-bearing points of the sole are provided with sole force sensors, power supply leads of the sole force sensors are connected with a power supply, signal output leads of the sole force sensors are connected with an input end of an amplification circuit, an output end of the amplification circuit is connected with an input end of a multiplexing device, an output end of the multiplexing device is connected with an input end of an analog-to-digital converter, and an output end of the analog-to-digital converter is connected with a computer. The structure of each sole force sensor is as follows: an absolute pressure sensor is packed in one silicon rubber ball body, and the silicon rubber ball body is compressed by a contact force between the sole force of a human body and the ground, thus the volume is smaller, the change of the pressure is measured through the absolute pressure sensor and is sequentially processed by an amplification circuit and a multiplexing device, and then a signal is transmitted to the analog-to-digital converter, and finally an oscillograph is displayed in a computer so that the sole force of the human body is indirectly measured. The flexible sole force measuring system has the advantages of simple structure, high measurement precision and reliable performance.
Description
technical field [0001] The invention relates to the technical field of sensor measurement, in particular to a flexible plantar force measurement system. Background technique [0002] Plantar force is the most direct biomechanical parameter that reflects gait support and stability, and plays a vital role in human gait analysis, related foot disease diagnosis, and other rehabilitation medical fields. As an advanced technology in today's gait research, plantar force measurement can be widely used in many fields and is expected to achieve breakthrough results. In the field of clinical biomechanics, it provides relevant technical support for the analysis of plantar force distribution and gait characteristics of special populations and patients with foot diseases; in addition, through in-depth research on the measured plantar force, it is expected to be used in Parkinson's syndrome, hemiplegia, diabetes, etc. Greater research results in gait studies of patients. [0003] The rea...
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IPC IPC(8): A61B5/22
Inventor 赵玉龙张学锋张雪蕾于忠亮
Owner XI AN JIAOTONG UNIV