Wiren Board 5: Модуль расширения ADC/en: различия между версиями
Fizikdaos (обсуждение | вклад) |
Fizikdaos (обсуждение | вклад) |
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2. "Current" jumper installed . Mode input current up to 70 mA. Measurement accuracy - 1%. Range - up to 70 mA. | 2. "Current" jumper installed . Mode input current up to 70 mA. Measurement accuracy - 1%. Range - up to 70 mA. | ||
Connection of current sensors. | |||
3. "Resistance" jumper installed . Measurement of resistance of 0.1-10 ohms. Measuring accuracy up to 0.2% (with R ~ 1k). | 3. "Resistance" jumper installed . Measurement of resistance of 0.1-10 ohms. Measuring accuracy up to 0.2% (with R ~ 1k). | ||
Версия 17:57, 14 января 2016
Universal module ADC. 12 bits. Adjustable gain (1-12 times) can accurately measure even small voltage
Three modes of operation:
1. ADC mode (jumpers open). Range of measurement is 0-3,3 V.
2. "Current" jumper installed . Mode input current up to 70 mA. Measurement accuracy - 1%. Range - up to 70 mA. Connection of current sensors.
3. "Resistance" jumper installed . Measurement of resistance of 0.1-10 ohms. Measuring accuracy up to 0.2% (with R ~ 1k).
Connection of sensors type Pt100, Pt1000, thermistor from 100 ohms to 10K.
4. Подключение датчика Pt100, Pt1000 по трех проводной схеме. Замкнута только одна перемычка "Resistance 1". Схема подключения на рисунке. Такое подключение позволяет учитывать сопротивление подводящих проводов, измерение получается более точным.
O1 - GND. O2 - INPUT2 О3 - INPUT1
ПО
To be done