Squeeze-in type wheel load force transducer
A force sensor, wheel weight technology, applied in the direction of measuring force, instruments, measuring devices, etc., can solve the problems of nonlinear error zero point and instability, and achieve the effect of improving nonlinear error and zero point instability.
Active Publication Date: 2010-06-09
HANGZHOU QIANJIANG WEIGHING TECH
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Problems solved by technology
[0007] The present invention aims to solve the problem that the plug-in load cell is prone to non-linear error and zero point instability, and therefore provides a plug-in wheel load cell of the present invention, which can effectively overcome nonlinearity and zero point instability. stable
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[0026] Plug-in wheel weight sensor, with deformation control area 1, sensitive area 2 and isolation area 4 on the circular cylinder, strain gauge 6 attached to the sensitive area, compensation plate 5 inside the cylinder, and sensor outside The end is connected with a shielded cable 8, and the outer wall of the cylinder is provided with four ribs 3 that are uniformly distributed in the circumferential direction and are radially symmetrical. The height of the two ribs in the radial direction of I-III is lower than that of the two ribs in the radial direction of II-IV. high.
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The invention discloses a squeeze-in type wheel load force transducer which can effectively solve the defects of non-linearity and zero-point instability. A deformation control area (1), a sensitive area (2) and an isolation area (4) are arranged on an annular barrel, a strain gage (6) is fitted on the sensitive area, and four radially symmetrical ribs (3) uniformly and circumferentially distribute on the outer wall of the barrel. The squeeze-in wheel load force transducer is characterized in that the heights of the two ribs in the radial direction I-III is smaller than those of the two ribs in the radial direction II-IV. The invention is suitable for the squeeze-in force transducer.
Description
technical field [0001] The present invention relates to a device for measuring force or stress using the property that resistance varies with applied force. Background technique [0002] The plug-in load cell is a device that measures the force on an object. For example, the plug-in sensor is embedded in the mounting hole of the rail. When the rail car wheel acts on the rail, the rail deformation caused by gravity will cause the corresponding deformation of the sensor, which will change the resistance of the strain gauge and produce a changed electrical signal output. Calculate the magnitude of the force exerted on the measurement. [0003] Insert type load cell in the prior art, the first such as Figure 7 , Figure 8 The conical truncated structure sensor adopted by the Japanese company shown is an interference fit because the entire interface is in contact with the rigid structure. In the process of transferring stress with the rigid structure, due to the large contact ...
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IPC IPC(8): G01L1/22
Inventor 顾增华凌行峰戴明新
Owner HANGZHOU QIANJIANG WEIGHING TECH
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