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    • 1. 发明公开
    • A device for measuring physical parameters
    • Vorrichtung zum Messen physikalischer参数。
    • EP0395188A1
    • 1990-10-31
    • EP90201080.0
    • 1990-04-27
    • N.V. Nederlandsche Apparatenfabriek NEDAP
    • Stekelenburg, Jan Cornelis
    • G01K1/02G01K7/24
    • G01K1/024G01K7/245
    • A device for measuring physical parameters, in particular suitable for measuring temperature, comprising a probe including a sensor element capable of converting the value to be measured into an electrical signal, said probe including a receiving circuit in which an AC voltage can be induced by an electromagnetic interrogation field which, in operation, is generated by a transmitter/receiver forming part of the measuring device, which AC voltage can be modulated depending on the measured value of the physical parameter, and wherein the probe includes a digital code circuit in which an identification code is stored, as well as a substantially digital measuring circuit connected to the sensor element, the arrangement being such that, in operation, the code circuit and the measuring circuit successively, through a switch element, modulate the AC voltage induced in the receiver circuit with a binary signal.
    • 一种用于测量特别适合于测量温度的物理参数的装置,包括:探头,其包括能够将待测量的值转换成电信号的传感器元件,所述探头包括接收电路,其中AC电压可由 电磁询问场,其在操作中由形成测量装置的一部分的发射器/接收器产生,该AC电压可以根据物理参数的测量值进行调制,并且其中探头包括数字代码电路,其中, 存储识别代码以及连接到传感器元件的基本上数字的测量电路,该布置使得在操作中,代码电路和测量电路依次通过开关元件调制在接收器中感应的AC电压 电路与二进制信号。
    • 3. 发明公开
    • Thermistor thermometer
    • 温度计温度计
    • EP0180393A3
    • 1987-05-13
    • EP85307603
    • 1985-10-22
    • Citizen Watch Co. Ltd.
    • Hanaoka, Tadashi
    • G01K07/24
    • G01K7/245
    • A thermistor thermometer has a reference resistance correcting section for controlling the number of pulses of an oscillation signal to a predetermined reference value. The oscillation signal is sampled in response to a measuring time signal at a reference temperature. The reference temperature is given as a predetermined temperature below a possible operating temperature range. The thermistor thermometer also has a sensitivity correcting section for operating the thermometer for first and second operating intervals at different counting rates. The first and second operating intervals constitute a sampling period of the measuring time signal. The first and second operating intervals of the sensitivity correcting section are switched over in response to a reference count signal from a temperature counter. The tempeature counter counts the oscillation signals sampled in response to the measuring time signal and generates temperature data.