Strain type three-dimensional dynamometering platform

The utility model relates to a strain type three-dimensional dynamo metering platform, which belongs to the technical field of the gait detecting device. For overcoming the defect of the existing dynamo metering platform, the utility model discloses the strain type three-dimensional dynamo metering platform and comprises a foot plate, a box body positioned under the foot plate, four strain type three-dimensional force sensors, an opsonizing circuit and a USB interface data conversion and collecting circuit. The four strain type three-dimensional force sensors, the opsonizing circuit and the USB interface data conversion and collecting circuit are arranged in the box body. The strain type three-dimensional force sensors comprise an elastic body structure processed with an entire block of metal and a plurality of strain gages. The elastic body structure comprises two cantilever beams which are overlaided together in the form of layer and are used for detecting fore-after direction force and left-right direction force and a shear beam used for detecting vertical direction force. Four strain gages are respectively stuck with each beam, four strain gages on each beam compose a whole-bridge circuit, so each force sensor is provided with three whole-bridge circuit. The conformance requirement of the four force sensors which is required by the utility model is low, so the difficulty and the cost of processing, the difficulty and the cost of the installation and the difficulty and the cost of the debugging are reduced, and the use is convenient.