Визначення метрологічних характеристик вимірювальних каналів з діодними перетворювачами
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Дата
2013
Автори
Каштальян, А.С.
Kashtalian, A.S.
Назва журналу
Номер ISSN
Назва тому
Видавець
Хмельницький національний університет
Анотація
Проведено дослідження метрологічних характеристик діодних сенсорів НВЧ електромагнітного поля.
Зокрема, розглянуто залежності чутливості за напругою діодних сенсорів в динамічному діапазоні. А також
досліджено вплив дестабілізуючих факторів на точність вимірювань.
The investigation of metrological characteristics of microwave electromagnetic field diode sensors is conducted in article. Metrological characteristics of measuring converter and measuring channel are primary component of initial information for estimation of informationmeasuring systems metrological characteristics, as a part of these systems. Such descriptions of measuring diode sensors as measure error, conversion function of measuring channel with diode sensor, destabilizing factors influence function are examined for metrological reliability evaluation. Measuring conversion function is researched in dynamic range to 10mW, the dependence of output voltage from input power and the dependence of voltage sensitivity from input power are received. The influence of destabilizing factors is explored: for observable microwave electromagnetic field in range from 0,3GHz to 3GHz; for surrounding environment temperature in range from 0ºC to 50º: for semiconductor junction serial resistance in corresponding to diode models ranges. Derived relations permit to compare common diode detectors, which are used only for electromagnetic field detection, and improved diode sensors with error correction, which are applicable for measuring of microwave electromagnetic field intensity. The parametric feedback method, the structural balancing method, the weak feedback method are used for accuracy increase in improved diode sensors.
The investigation of metrological characteristics of microwave electromagnetic field diode sensors is conducted in article. Metrological characteristics of measuring converter and measuring channel are primary component of initial information for estimation of informationmeasuring systems metrological characteristics, as a part of these systems. Such descriptions of measuring diode sensors as measure error, conversion function of measuring channel with diode sensor, destabilizing factors influence function are examined for metrological reliability evaluation. Measuring conversion function is researched in dynamic range to 10mW, the dependence of output voltage from input power and the dependence of voltage sensitivity from input power are received. The influence of destabilizing factors is explored: for observable microwave electromagnetic field in range from 0,3GHz to 3GHz; for surrounding environment temperature in range from 0ºC to 50º: for semiconductor junction serial resistance in corresponding to diode models ranges. Derived relations permit to compare common diode detectors, which are used only for electromagnetic field detection, and improved diode sensors with error correction, which are applicable for measuring of microwave electromagnetic field intensity. The parametric feedback method, the structural balancing method, the weak feedback method are used for accuracy increase in improved diode sensors.
Опис
Ключові слова
діодний сенсор, чутливість за напругою, дестабілізуючі фактори, функція вимірювального перетворення, diode sensor, voltage sensitivity, destabilizing factors, measuring conversion function
Бібліографічний опис
Каштальян, А. С. Визначення метрологічних характеристик вимірювальних каналів з діодними перетворювачами [Текст] / А. С. Каштальян // Вісник Хмельницького національного університету. Технічні науки. – 2013. – № 6. – С. 160-165.