Ion-flow anemometer using a high-voltage pulse

A high-linearity DC planar Ionic anemometer

“…Due to their inherent low mechanical noise, simplicity without mechanical moving parts [5], good frequency response and linear sensitivity, ionic anemometers based on gas discharge have been studied for several decades. Several types of ionic anemometer such as perpendicular type, parallel type and spatial coaxial type have been proposed and tested.…”

“…Yamanaka et al [6][7][8][9][10] put forward perpendicular anemometers in which the anode and cathode are perpendicular to each other, but these are limited by their large size and their influence on the airflow distribution. Asano et al [5,[11][12] proposed a parallel-type ionic anemometer which can obtain airflow velocity by measuring the time difference of ion motion between two parallel electrodes, but this is restricted by its poor accuracy and large size. Barat et al [2,[13][14][15] designed some coaxial anemometers in which the two or three spatial electrodes are coaxial, but it is difficult to assemble them precisely.…”

The behavior of emitted charge cloud from an axisymmetric ion-flow anemometer

“…Even in ion-flow anemometers wide variety of principles has been investigated and developed [l-81. A pulsed ion-flow anemometer which has been developed and reported previously is one of such a group and showed good relations between the measured value and actual wind velocity [9].…”