Two-wire thermocouple temperature transmitter with cold end temperature compensation
The utility model discloses a two-wire thermocouple temperature transmitter with cold end temperature compensation. The two-wire thermocouple temperature transmitter comprises a cold end temperature compensation circuit and an XTR101AP conversion circuit. Wherein the A end of the thermocouple is con...
Gespeichert in:
| Hauptverfasser: | , , , |
|---|---|
| Format: | Patent |
| Sprache: | chi ; eng |
| Schlagworte: | |
| Online-Zugang: | Volltext bestellen |
| Tags: |
Tag hinzufügen
Keine Tags, Fügen Sie den ersten Tag hinzu!
|
| Zusammenfassung: | The utility model discloses a two-wire thermocouple temperature transmitter with cold end temperature compensation. The two-wire thermocouple temperature transmitter comprises a cold end temperature compensation circuit and an XTR101AP conversion circuit. Wherein the A end of the thermocouple is connected with the XTR101AP conversion circuit, the B end of the thermocouple is connected with the cold end temperature compensation circuit and the XTR101AP conversion circuit, and the XTR101AP conversion circuit is further connected with the cold end temperature compensation circuit. According to the utility model, a high-precision low-drift 4-20mA two-wire system transmitter dedicated chip XTR101AP is adopted, and a high-precision current type temperature sensor AD590 is innovatively added to carry out thermocouple cold junction precision compensation circuit design, so that a unique high-precision precision cold junction compensation two-wire system thermocouple temperature transmitter with excellent performance |
|---|