Six-axis force sensor of bicycle pedal

Abstract

The invention discloses a six-axis force sensor of a bicycle pedal, which comprises a mechanical strain structure and an electronic inspection circuit, wherein the mechanical strain structure comprises a sensor strain body; a rotating shaft is sleeved by the sensor strain body; bearings are respectively mounted at the two ends of the rotating shaft in a matching manner; circuit boards are respectively arranged on the upper surface and the lower surface of the sensor strain body; stress bearing plates are respectively arranged on the other sides of the two circuit boards; the electronic inspection circuit comprises an amplification conditioning module; a voltage signal output terminal of the sensor strain body is connected with a signal input end of the amplification conditioning module; a signal output terminal of the amplification conditioning module is connected with a signal input end of an A / D conversion module; a signal output terminal of the A / D conversion module is connected with a signal input end of a wireless data transmission module through an RS232 bus; and a signal output end of the wireless data transmission module is in communication with a PC (personal computer) through a wireless Bluetooth. The structure of the sensor is designed on the basis of the shape of the conventional bicycle pedal, so as to satisfy the six-axis force or torque function and the measuring accuracy.

Description

technical field [0001] The invention mainly relates to the field of sensors, in particular to a six-dimensional force sensor for bicycle pedals. Background technique [0002] Most of the existing 6-dimensional force sensors are designed and manufactured for engineering measurement, precision control, precision manufacturing and other fields, and there are no products specially designed for bicycle movement measurement; if these 6-dimensional force / torque sensors are directly applied to bicycle movement measurement There are the following disadvantages and deficiencies in the field: [0003] 1. The shape of the sensor is mostly cylindrical and square, which do not meet the shape requirements of bicycle pedals; [0004] 2. The sensor generally does not have a rotating shaft inside, which does not conform to the working method of bicycle pedals; [0005] 3. The load-bearing measuring surface of the sensor has only one side, which does not conform to the usage habits of...

AI Technical Summary

Problems solved by technology

[0003] 1. The shape of the sensor is mostly cylindrical and square, which do not meet the shape requirements of bicycle pedals;

[0004] 2. The sensor generally does not have a rotating shaft inside, which does not conform to the working method of bicycle pedals;

[0005] 3. The load-bearing measuring surface of the sensor has only one side, which does not conform to the usage habits of bicycle pedals;

[0006] 4. The signal conditioning module and acquisition module of the sensor are mostly external, and the integration level is not high, which is troublesome to use;

[0007] 5. Most sensors use wired data transmission, which is very inconvenient if used for bicycle pedals

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