Force measurement composite device based on serial connection principle

Abstract

The invention relates to a force measurement composite device based on a serial connection principle. The force measurement composite device comprises a connecting rod, a dowel bar, a long range force transducer, a short range force transducer, an upper supporting plate, a lower supporting plate, a spring, a spring sleeve pipe, and a force transmission rack. The long range force transducer and the short range force transducer are respectively disposed on the upper end and the lower end of the connecting rod. The upper supporting plate is disposed between the long range force transducer and the short range force transducer, and the lower end of the short range force transducer is connected with the dowel bar, the lower end of which is connected with the spring. The part of the length of the dowel bar and the spring are disposed in the spring sleeve pipe, and the bottom part of the spring sleeve pipe is fixedly disposed on the lower supporting plate. The lower end of the spring is connected with the lower supporting plate, and the force transmission rack is disposed on the outer edge of the lower supporting plate, and a specific distance between the top part of the force transmission rack and the upper supporting plate is maintained in an initial state. The upper end of the long range force transducer and the lower end of the lower supporting plate are force bearing ends. The force measurement composite device has advantages of high measurement precision (high precision), large measurement load value range (long range), accurate and reliable testing results, and strong practicability.

Description

technical field [0001] The invention belongs to the fields of engineering such as civil engineering and machinery, and relates to an accurate force measurement device, in particular to a force measurement composite device based on the principle of series connection. Background technique [0002] A force sensor is a device or component that measures the amount of load exerted by one object on another object, and has been widely used in engineering testing, processing, and automation control. For example, in engineering testing, the load value applied to the test beam or column, the consolidation force of the soil compression test or the shear force of the triaxial test, and the automatic control system based on the load size all require accurate load measurement. Measurement. [0003] However, due to the limitations of its own materials, structural characteristics, and sensing elements, the current force sensors have the practical problem that the range and accuracy or resol...

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Problems solved by technology

[0005] The purpose of the present invention is to provide a force measurement composite device based on the series principle in order to overcome the above-mentioned defects in the prior art, so as to solve the problem that the range and accuracy of the current force sensor cannot be taken into account at the same time

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