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    • 2. 发明公开
    • Indicating devices
    • Anzeigevorrichtungen。
    • EP0476948A2
    • 1992-03-25
    • EP91308420.8
    • 1991-09-16
    • Serif PLC
    • Adam, Jeremy Graham
    • G01K11/16
    • G01N27/048A01G27/008
    • The invention concerns indicating devices for use with plants for indicating whether or not a plant is being subjected to the correct conditions of temperature and/or moisture. A device 12 carrying instructions 13 concerning the type of plant for which it is suitable is printed with an enclosed volume of liquid crystal ink which has one colour at a suitable temperature for the plant and other colours when the temperature is too hot or too cold. The device also carries a strip 16 of material which changes colour according to the moisture level of the soil in which it is inserted to give an indication when the soil is too dry. Alternatively an electronic circuit and probe may measure the moisture level.
    • 本发明涉及指示用于植物的装置,用于指示植物是否正在经受正确的温度和/或湿度条件。 印有关于其适合的植物类型的指令(13)的标签或标签(12),其具有封闭体积的液晶油墨(14),所述液晶油墨在合适的温度下具有用于植物的一种颜色(7),并且 其他颜色(8,9)当温度过高或过冷时。 该装置还带有根据其被插入的土壤的水分水平改变颜色的材料条(16),以在土壤太干时给出指示。 或者,电子电路和探针可以测量湿度水平。 另一装置(17)可以测量光级。