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1. 发明专利

JPS59164919A Plant growth measuring apparatus 失效
标题翻译：植物生长测量装置
公开(公告)号：JPS59164919A
公开(公告)日：1984-09-18
申请号：JP3918183
申请日：1983-03-11
申请人： Koji Tamaki
发明人： TAMAKI KOUJI
IPC分类号： A01G7/00 , G01G3/14
CPC分类号： G01G3/1402
摘要： PURPOSE:To make it possible to measure plant growth with extremely good accuracy, by converting the wt. gain of a plant during a growing process thereof to the deflection amount of a cantilevered beam made of an elastic plate in a stepless manner by providing a growing plant wt. support apparatus to the free end of said cantilevered beam. CONSTITUTION:A growing plant 10 is supported by the ring 3 of a cantilevered beam sensor 7. The water level of a hydroponic solution is controlled so as to be always made constant in order to secure the supply of nutrient and water from the root of the plant 10. The load of the plant 10 is acted on a cantilevered beam 1 through the ring 3 to generate bending moment difference which is, in turn, detected by strain gauges 41-44 while the detected amount is detected by a bridge circuit 6. Because constant-voltage is applied to the bridge circuit 6, the growth measurement of the plant 10 can be performed by measuring the each detected output voltage changed with the elapse of time. In addition, by additionally providing a strain gauge to the part 4 of the cantilevered beam 1 in the longitudinal direction thereof, the deflection amount of the cantilevered beam 1 is converted to a digital value without receiving influence caused by the posture change of the plant 10 to make it possible to measure growth data.
摘要翻译：目的：为了能够以极高的精度测量植物的生长，植物生长过程中植物的增益以无级方式由弹性板制成的悬臂梁的偏转量通过提供生长的植物重量来获得。支撑装置到所述悬臂梁的自由端。构成：生长中的植物10由悬臂梁传感器7的环3支撑。水培溶液的水位被控制以便始终保持恒定，以确保营养和水从根部的根部供应工厂10的载荷通过环3作用在悬臂梁1上，以产生弯矩差异，而弯矩差值又由应变计41-44检测，而检测量由桥接电路6检测。由于将恒定电压施加到桥接电路6，所以可以通过测量随着时间的推移而改变的每个检测到的输出电压来进行设备10的生长测量。此外，通过向悬臂梁1的纵向方向另外设置应变仪，将悬臂梁1的偏转量转换为数字值，而不受植物10的姿势变化引起的影响以便衡量增长数据成为可能。

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