Capacitive level measuring circuit


Posted on Mar 28, 2007

Capacitance/C tuck bit IJ volume level change is directly converted into electrical parameters, electrical parameters and then be converted to a unified signal transmission, pr


Capacitive level measuring circuit
Click here to download the full size of the above Circuit.

ocessing, display and so on. The electrical parameters can be divided into different: resistive, capacitive and inductive and so on, now capacitive for the introduction. We know that the most simple capacitor capacitance from the above equation by changing the t d, E or A change of approach could be made, respectively, the corresponding capacitive sensor. Capacitive level meter consists of capacitive sensors and measuring circuit. Capacitive sensors by changing the dielectric constant E of the general principle made, FIG. 6-38a, b capacitive liquid level sensors and measuring circuits. In setting a cylindrical capacitor test solution at the plate area A and distance d is fixed, the capacitance Velvet C. The dielectric medium between the plates with dielectric constant E change. Let the liquid dielectric permittivity, Tuen constant gas is e2, general E, ez, when the liquid level rises, the total dielectric constant increases. Thus the capacitance G increases, and vice versa, when the level drops Rang, E decreases. c, decreases. It is possible that by measuring the C rhyme change the level of liquid in the container. Figure 6-38b capacitance measuring circuit, G is the reference arm capacitance.




Leave Comment

characters left:

New Circuits

.

 


Popular Circuits

Increasing Regulator Current
Dc Motor-Speed Control
Fast Optical Recording Circuit
Filters
PWM Motor Control circuit
Diac Applications
ultrasonic cleaning transducers series parallel
Basic FET Amplifier
Two Relay-Based Motorcycle Alarm Circuits



Top