The invention relates to an intelligent heater with linear temperature rise and constant temperature heating effects and of a small unmanned aerial vehicle airspeed head. The principle that the resistance of a thermistor increases along with temperature rise is utilized to make the difference between two paths of output of a bridge circuit consisting of the temperature measuring resistor and the temperature stabilizing resistor also reduced along with the rise of the temperature, and linear control over the resistance current of the heating airspeed head is achieved through a gain and linear processing circuit and a triode processing circuit, so the current of the airspeed head heating resistor is linearly and directly proportional to the two output differences of a bridge type comparisoncircuit, that is, when the resistance value of the thermistor is smaller than that of the temperature stabilizing resistor, the heating resistor is linearly and progressively decreased and heated, andwhen the resistance value of the thermistor is equal to that of the temperature stabilizing resistor, the heating resistor is constantly heated. The heater is reasonable in design, simple and reasonable in structure, convenient and accurate in heating and high in universality.

    本发明涉及一种具有线性升温和恒定温度加热的小型无人机空速管的智能加热器,利用热敏电阻随温度升高而阻值增大的原理,使由测温电阻和温度稳定电阻构成的桥式电路的两路输出差也随着温度的升高而减小,通过增益和线性处理电路和三极管处理电路实现了对加热空速管电阻电流的线性控制,使空速管加热电阻电流与桥式比较电路的两路输出差成线性正比例,即当热敏电阻的阻值小于温度稳定电阻时,对加热电阻进行线性递减加热,当热敏电阻的阻值等于温度稳定电阻时,对加热电阻进行恒定加热。本发明设计合理,结构简单合理,加热便捷准确,通用性强。


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    Titel :

    Intelligent heater of small unmanned aerial vehicle airspeed head


    Weitere Titelangaben:

    一种小型无人机空速管的智能加热器


    Beteiligte:
    WANG WEI (Autor:in) / SUN LINFENG (Autor:in)

    Erscheinungsdatum :

    2020-11-27


    Medientyp :

    Patent


    Format :

    Elektronische Ressource


    Sprache :

    Chinesisch


    Klassifikation :

    IPC:    H05B ELECTRIC HEATING , Elektrische Heizung / B64D Ausrüstung für Flugzeuge , EQUIPMENT FOR FITTING IN OR TO AIRCRAFT



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