Tag Archives: Current Loop

Resistance Thermometer Current Loop Transmitter

Posted on January 21, 2011 by Rust

Resistance temperature sensor (RTD, resistive temperature device)  comes in NTC (negative temperature coefficient) and PTC (positive temperature coefficient) forms. A schematic diagram below show a signal conditioner circuit for such thermometer. This sensor conditioning circuit works in current mode (current … Continue reading →

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4-20mA Current Loop Bridge Sensor Transmitter

Posted on January 17, 2011 by Rust

Bridged resistive sensing elements is common in resistive type sensors/transducers. This sensor type need a biasing voltage to operate. LM10 provide low reference voltage, which is suitable for powering usually low resistance bridge type sensors such as strain gauges. The … Continue reading →

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Precision Current Loop Thermocouple Transmitter

Posted on January 12, 2011 by Rust

Current loop analog data transmission is used in industrial environment because of its robustness (good noise immunity), while providing wiring fault detection (short and broken wiring) with a simple mechanism by detecting out range current level. In 4-20mA current loop … Continue reading →

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