Campbell-scientific CR3000 Micrologger Manual de usuario Pagina 38

  • Descarga
  • Añadir a mis manuales
  • Imprimir
  • Pagina
    / 590
  • Tabla de contenidos
  • SOLUCIÓN DE PROBLEMAS
  • MARCADORES
  • Valorado. / 5. Basado en revisión del cliente
Vista de pagina 37
Section 4. Quickstart Tutorial
38
A specific resistance in a pressure transducer strain gage correlates to a
specific water pressure.
A change in resistance in a wind vane potentiometer correlates to a change in
wind direction.
4.1.3.2.1 Voltage Excitation
Bridge resistance is determined by measuring the difference between a known
voltage applied to a bridge and the measured return voltage. The CR3000
supplies a precise scalable voltage excitation via excitation terminals. Return
voltage is measured on analog terminals. Examples of bridge sensor wiring using
voltage excitation are illustrated in figures Half-Bridge Wiring -- Wind Vane
Potentiometer
(p. 38) and Full-Bridge Wiring -- Pressure Transducer (p. 38).
Figure 5: Half-bridge wiring -- wind vane potentiometer
Figure 6: Full-bridge wiring -- pressure transducer
Vista de pagina 37
1 2 ... 33 34 35 36 37 38 39 40 41 42 43 ... 589 590

Comentarios a estos manuales

Sin comentarios