Maimaitar Daulara na Weston

Makaranta Weston Frequency Meter

Yanayin Weston frequency meter yana ci gaba da tsari na abu a kan mai kula na maye da sabon rike a kan duwatsu biyu.

Kunshi

Yana da duwatsu biyu, inductors uku, da kuma resistors biyu wadanda suka kunshi a cikin hanyar tushen.

Diagramma na Tushen

Diagramma ya nuna Duwatsu 1 da resistor (R1) da reactance coil (L1), da kuma Duwatsu 2 da reactance coil (L2) da parallel resistor (R2).

Siffarwar Gaba

Asashen duwatsu biyu suna nuna cewa. Scale na yanayin yana ci gaba da cewa a matsayin tsarin standard frequency, maimaitaccen yanayi zai zaune a 45o. Duwatsu 1 yana da resistor series (R1) da reactance coil (L1), idan duwatsu 2 yana da reactance coil series (L2) da parallel resistor (R2). Inductor (L0) yana ci gaba da supply voltage don kare masu harmonic, inda wannan inductor yake yi aiki a matsayin filter circuit. Za ta bayyana aiki na wannan yanayi.

Idan a yi apply voltage a matsayin standard frequency, maimaitaccen yanayi zai zaune a matsayin normal. Idan frequency yadda, maimaitaccen yanayi zai zuwa hagu, wanda ya nuna frequency yadda. Idan frequency ci, maimaitaccen yanayi zai zuwa yamma, wanda ya nuna frequency ci. Idan frequency ci daidai, maimaitaccen yanayi zai taka rawa a matsayin normal da kuma zuwa hagu.

Bayyana aiki na wannan yanayi. Voltage drop across an inductor yana da muhimmanci da frequency na source voltage. Idan frequency na applied voltage yadda, voltage drop across inductor L1 yadda, wanda yake zama current across Duwatsu 1. Wannan yake zama current through Duwatsu 1 to increase and the current through Duwatsu 2 to decrease.

Idan current through Duwatsu 1 yadda, magnetic field itace yadda, wanda yake zama magnetic needle to move more to the left, indicating higher frequency. Idan frequency ci, aiki na sama zai faru, amma maimaitaccen yanayi zai zuwa yamma.

Aiki da Frequency Changes

Magnetic needle moves left with higher frequencies and right with lower frequencies, reflecting the change in the current through the coils.