Pressure heavy load sensor of concrete filled steel tube

Abstract

Disclosed is a one-dimensional heavy load sensor which is high in accuracy, high in rigidity, large in load and low in cost. The concrete filled steel tube structure is adopted as a bearing body, the outer portion of the concrete filled steel tube structure is of a cylindrical structure, two sets of resistance strain sheets are arranged in the bearing body, the first set comprises four resistance strain sheets vertically and evenly distributed on the contact surface of concrete and the steel tube, the other set comprises one resistance strain sheet which is arranged in the center of the concrete filled steel tube, the two ends of the resistance strain sheets are connected with wires, and the wires on the resistance strain sheets are connected to external equipment through through holes in the wall and the bottom end of the sensor. The concrete filled steel tube is adopted as the bearing body, the load bearing capacity is largely increased, and the size of the bearing body can be largely reduced. The sensor is provided with the two sets of resistance strain sheets which are five in number, so that the sensitivity and accuracy of the sensor are improved. The pressure heavy load sensor of the concrete filled steel tube has the advantages of being simple in structure, convenient to machine, reliable in performance, good in load bearing capacity, high in measurement accuracy, small in size, high in rigidity, stable in performance and the like.

Description

technical field [0001] The invention relates to a heavy-duty sensor for weighing and measuring pressure. Background technique [0002] In the current heavy-duty weighing, the carrier used by the pressure sensor is all-metal material. In order to carry a large load, the volume of the sensor is often increased, which increases the cost of the sensor. It is inconvenient to use, inconvenient to process and manufacture, and difficult to weigh. accurate. Although many heavy-duty sensors adopt a hollow structure, this reduces the stiffness of the sensor and sacrifices the load value of the load. Contents of the invention [0003] The purpose of the present invention is to provide a high-precision, large-load, high-rigidity, low-cost one-dimensional heavy-duty sensor. [0004] In order to achieve the above object, the present invention adopts the following scheme: high precision, large load, high rigidity, low-cost one-dimensional heavy load sensor is based on the unified theor...

AI Technical Summary

Problems solved by technology

[0002] In the current heavy-duty weighing, the carrier used by the pressure sensor is all-metal material. In order to carry a large load, the volume of the sensor is often increased, which increases the cost of the sensor. It is inconvenient to use, inconvenient to process and manufacture, and difficult to weigh. accurate

Although many heavy load sensors adopt a hollow structure, this reduces the stiffness of the sensor and sacrifices the load value

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