Device, method and system for add on attachment of applied force strain sensor onto exercise equipment
AssigneeWatteam Ltd
InventorsEliyahu David, Ofir Gal-On
Life of this patent
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Abstract
A device, method, and system that allows the easy add on attachment of an applied-power sensor, assuring precise measurements over time, even in vibrating environments such as exercise environments. The device possesses structural qualities such that tightening the wrapping latch around a measured object/part presses a loaded spring between the object/part and the sensor, achieving and maintaining sufficient and constant contact, thus allowing continuously precise measuring. The device also includes a transmitter to transmit the measured data to an external data processing device and may include a processor to process the data before transmitting.
Claims16
A device for measuring a force applied to a bicyclic pedal by a rider;
- said device attachable to a standard bicyclic crank carrying said pedal secured thereto;
- said device comprising:
- a. attaching means adapted for quickly embracing and detaching from said crank;
- b. a spring-loaded leaf attached to said crank;
- said spring-loaded leaf configured for measuring deformation of said crank;
- c. at least one strain gauge adapted to measure a strain of said spring-loaded leaf;
- said strain gauge configured for indicating crank deformation;
- and
- d. a control unit.
A method of measuring a force applied to a bicyclical pedal by a rider;
- said method comprising the steps of:
- a. providing a device for measuring a force applied to a bicyclic pedal by a rider;
- said device attachable to a standard bicyclic crank carrying said pedal secured thereto;
- said device comprising
- i. attaching means adapted for quickly embracing and detaching from said crank;
- ii. a spring-loaded leaf attached to said crank;
- said spring-loaded leaf configured for measuring deformation of said crank;
- iii. at least one strain gauge adapted to measure a strain of said spring-loaded leaf;
- said strain gauge configured for indicating crank deformation;
- iv. a control unit;
- b. attaching said device to said crank;
- c. applying a turning torque to said crank by said rider;
- d. elastically deforming said crank by said turning torque;
- and
- e. measuring deformation by means of said strain sensor.
Dependencies are inferred from the claim text.