文档介绍：外文参考资料二:
Abstract: In order to solve the weight problem often encountered in measuring the low-mass objects in the trade and daily life of the modern business, the design of a new pocket-sized electronic scales. This pocket-sized electronic scales Force Sensor gravity signals into electrical signals to measure, and measuring the results of the digital display. The pocket-sized electronic scales with a small size, light weight, easy to carry, intuitive display, measurement and high precision; complex structure, the cost disadvantages. This article focuses on the load cell works, pensation, the main parameters of selection. And the technical and economic analysis.
Keywords: pocket-sized electronic scales; weighing; sensor; pensationCLC number: TH715. 1] sign code: A Article ID: 100 522 895 (2007) 0220110204
1 A needs analysisIn merce and trade and everyday life, often encounter the problem of measuring the weight of the low-mass objects. Although the traditional steelyard can solve this problem, but inconvenient to carry, the efficiency is not high, the display is not intuitive and low measurement accuracy; mechanical spring balance can solve this problem, but the inertia inherent low frequency, high sensitivity, measurement accuracy is not high. With the progress and update of the puter technology, integrated circuit technology, sensor technology, electronic scales rapid development, it has a responsive, high accuracy, fully functional, the display is intuitive, compact, easy to use and so on.
For these reasons, in order to solve the low-mass objects weighing problem, if a small size, light weight, portable, digital display electronic scales, will be popular. Discussed below, that is, the scope of a weighing 5 pact electronic DesignThe principle of the structure of the pocket-sized electronic scales shown in Figure 1. The main task is to pact electronic scales weighing the choice of the force sensors. Dynamometer sensor types to achieve the weighing and