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    • 1. 发明申请
    • DEVICE FOR MEASURING THE TIME WHICH A REMOVABLE MEDICAL DEVICE HAS BEEN IN PLACE
    • 用于测量可移除医疗装置的时间的装置
    • WO1991001535A1
    • 1991-02-07
    • PCT/EP1990001150
    • 1990-07-13
    • FROHN, Hermann-JosefKÜMMEL, DietmarKNÖRZER, GerhardWURST, Jürgen
    • FROHN, Hermann-Josef
    • G07C03/04
    • A61C7/00A61C7/10G07C3/04
    • The invention concerns a medical apparatus worn in the mouth and containing a battery-powered measurement device (15) with a pulse generator (18) and a counter (20) which counts the pulses generated by the pulse generator (18). The precision of measurement is determined by the precision of the oscillation frequency of the pulse generator (18). The invention calls for the use of a low-precision pulse generator. When the counter reading is read out to an external processing unit (21), the measurement unit (15) supplies a reference time (tR) which is the time the pulse generator (18) requires to generate a given number of pulses. The processing unit (21) calculates the time corresponding to the counter readng, using the length of the reference time (tR). The processing unit (21) thus measures the period of the pulse generated by thepulse generator (18) and multiplies this period by the number of pulses counted. In this way, an exact time measurement is obtained without the need for a high-precision pulse generator.
    • 本发明涉及一种佩戴在口中的医疗设备,并且包含一个电池供电的测量装置(15),其中脉冲发生器(18)和计数器(20)对脉冲发生器(18)产生的脉冲进行计数。 测量的精度由脉冲发生器(18)的振荡频率的精度决定。 本发明要求使用低精度脉冲发生器。 当计数器读取被读出到外部处理单元(21)时,测量单元(15)提供脉冲发生器(18)所需的时间以产生给定数量的脉冲的基准时间(tR)。 处理单元(21)使用参考时间(tR)的长度来计算与计数器读取对应的时间。 因此,处理单元(21)测量由脉冲发生器(18)产生的脉冲的周期,并将该周期乘以计数的脉冲数。 以这种方式,可以获得精确的时间测量而不需要高精度的脉冲发生器。