UA153189U - MICROELECTRONIC TRANSDUCER FOR MEASURING HUMIDITY WITH FREQUENCY OUTPUT - Google Patents
MICROELECTRONIC TRANSDUCER FOR MEASURING HUMIDITY WITH FREQUENCY OUTPUT Download PDFInfo
- Publication number
- UA153189U UA153189U UAU202204462U UAU202204462U UA153189U UA 153189 U UA153189 U UA 153189U UA U202204462 U UAU202204462 U UA U202204462U UA U202204462 U UAU202204462 U UA U202204462U UA 153189 U UA153189 U UA 153189U
- Authority
- UA
- Ukraine
- Prior art keywords
- terminal
- capacitor
- resistor
- field
- effect transistor
- Prior art date
Links
- 238000004377 microelectronic Methods 0.000 title abstract 2
- 239000003990 capacitor Substances 0.000 abstract 12
- 230000005669 field effect Effects 0.000 abstract 4
- 230000000903 blocking effect Effects 0.000 abstract 3
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- Investigating Or Analyzing Materials By The Use Of Electric Means (AREA)
Abstract
Мікроелектронний перетворювач для вимірювання вологості з частотним виходом містить джерело постійної напруги, польовий транзистор, два резистори. У пристрій введено два біполярні транзистори, резистор, вологочутливий резистор, перший конденсатор, який входить до фазозсувного кола, другий конденсатор, який слугує для вибору резонансної частоти коливального контуру, третій конденсатор, блокувальний конденсатор. Перший вивід вологочутливого резистора з'єднаний з першим виводом другого резистора, з першим полюсом джерела постійної напруги, другий полюс якого з'єднаний з другим виводом третього резистора, з другим виводом блокувального конденсатора, з другим виводом другого конденсатора, з емітером першого біполярного транзистора, зі стоком та першим затвором польового транзистора, з другим виводом першого конденсатора, які під'єднані до заземлення. Перший вивід першого конденсатора з'єднаний з другим виводом вологочутливого резистора, з витоком польового транзистора та базою першого біполярного транзистора, колектор якого з'єднаний з другим затвором польового транзистора, з першим виводом другого конденсатора та з першим виводом третього конденсатора, з емітером другого біполярного транзистора, база якого з'єднана з другим виводом третього конденсатора та з першим виводом першого резистора, другий вивід якого з'єднаний з колектором другого біполярного транзистора та з першим виводом блокувального конденсатора, з другим виводом другого резистора та з першим виводом третього резистора.A microelectronic converter for measuring humidity with a frequency output contains a constant voltage source, a field-effect transistor, and two resistors. The device includes two bipolar transistors, a resistor, a moisture-sensitive resistor, the first capacitor, which is included in the phase-shifting circuit, the second capacitor, which serves to select the resonance frequency of the oscillating circuit, the third capacitor, a blocking capacitor. The first terminal of the moisture-sensitive resistor is connected to the first terminal of the second resistor, to the first pole of the constant voltage source, the second pole of which is connected to the second terminal of the third resistor, to the second terminal of the blocking capacitor, to the second terminal of the second capacitor, to the emitter of the first bipolar transistor, with the drain and first gate of the field-effect transistor, with the second terminal of the first capacitor connected to ground. The first terminal of the first capacitor is connected to the second terminal of the moisture-sensitive resistor, to the drain of the field-effect transistor and the base of the first bipolar transistor, the collector of which is connected to the second gate of the field-effect transistor, to the first terminal of the second capacitor and to the first terminal of the third capacitor, to the emitter of the second bipolar transistor, the base of which is connected to the second terminal of the third capacitor and to the first terminal of the first resistor, the second terminal of which is connected to the collector of the second bipolar transistor and to the first terminal of the blocking capacitor, to the second terminal of the second resistor and to the first terminal of the third resistor.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
UAU202204462U UA153189U (en) | 2022-11-28 | 2022-11-28 | MICROELECTRONIC TRANSDUCER FOR MEASURING HUMIDITY WITH FREQUENCY OUTPUT |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
UAU202204462U UA153189U (en) | 2022-11-28 | 2022-11-28 | MICROELECTRONIC TRANSDUCER FOR MEASURING HUMIDITY WITH FREQUENCY OUTPUT |
Publications (1)
Publication Number | Publication Date |
---|---|
UA153189U true UA153189U (en) | 2023-05-31 |
Family
ID=88792732
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
UAU202204462U UA153189U (en) | 2022-11-28 | 2022-11-28 | MICROELECTRONIC TRANSDUCER FOR MEASURING HUMIDITY WITH FREQUENCY OUTPUT |
Country Status (1)
Country | Link |
---|---|
UA (1) | UA153189U (en) |
-
2022
- 2022-11-28 UA UAU202204462U patent/UA153189U/en unknown
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