Accuracy Testing and Evaluation System of Image Data Processing Sizer and Electronic Weight Sizer.

本文研究了用部分回收率和标准量规的概念确定电子粒度仪精度的实用方法。将一组范围为100至350 g的配重以1 g的增量提供给电子重量分级器作为标准量规，并计算每个重量的部分回收率。分级器的准确度或灵敏度<DELTA>由w1 -w 0定义，其中w1和w 0分别是部分回收率为1和0时的权重。静态误差定义<delt>为w0.5 - ws，其中w0.5是部分回收率为0.5时的权重。一组直径为30 - 120毫米的石膏球，每增加1毫米，是处理球形水果的图像数据处理分级器的量规。两组两端有一个正圆锥的黄铜管，一个长度为150至300 mm，直径为25 mm，长度增量为1 mm，另一个直径为20至30 mm，长度增量为1 mm和200 mm，本文提出了将部分恢复概念与标准量规相结合的评价方法，并将其应用于圆柱形果蔬的图像数据处理分级机，取得了较好的效果。现代电子测瓣仪的准确性。

The prectical method to determine the accuracy of electronic sizers by means of the concept of the partial recovery and standard gauges has been studied. A set of counterweights ranging 100 to 350 g at the increment of 1g, is supplied to electronic weight sizers as the standard gauge, and partial recoveries of the each weight are calculated. The accuracy or sensitivity of a sizer,<DELTA>,is defined by w1 -w0, where w1 and w0 are the weights at which the partial recovery will be 1 and 0, respectively. The static error, <delt>, is defined by w0.5 - ws, where w0.5 is the weight at which the partial recovery will be 0.5. The value of w0.5 is called an actual separating point, and ws is the setting point.A set of plaster balls ranging 30 to 120 mm in diameter at the increment of 1mm, is the gauge for image data processing sizers, which deals with the globular fruit.Two sets of brass tubes with a right circular cone at both ends, one ranging 150 to 300 mm in length and 25 mm in diameter at the increment of 1mm in length, and another ranging 20 to 30 mm in diameter at the increment of 1mm and 200 mm in length, are used as the standard gauges for image data processing sizers which deal with cylindrical fruit and vegetables.The evaluation methods which combined the partial recovery concept with the standard gauges show good results to determine the accuracy of modern electronic sizers.