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http://dx.doi.org/10.12673/jant.2019.23.2.200

Forklift Weight Measurement System using Anchor Bolt Type Strain Gauge Sensor  

Han, Chi-moon (Research center, RCN Co. Ltd.)
Yim, Choon-Sik (Research center, RCN Co. Ltd.)
Lee, Seong-Real (Division of Navigational Information System, Mokpo National Maritime University)
Abstract
The most frequent type of safety-accident in industry is the overturning of forklift. The leading cause of this accident is overload in forklift. Thus, it is needed to measure the weight on board of forklift. The most common method is based on load cell, and this method has the merit of high accuracy. However, high price is the disadvantage of this method. In this paper, we propose the new measurement system of the weight on board of forklift based on the strain gauge sensor, which has the disadvantage of low accuracy. The differentiation of the proposed system is that the shape of the strain gauge sensor customized for anchor bolt of forklift in order to improve the accuracy and durability. In system four strain gauge sensors are inserted into four anchor bolts. The test result shows that 1% error of measurement is obtained in the proposed anchor bolt type strain gauge sensors.
Keywords
Strain gauge; Anchor bolt; Forklift; Weight on board; IoT;
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