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

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

Zero consumption Anti-theft High power Code Switch for E-Bike Batteries

This project fits more for custom made battery casing that can have more space to hide things inside. This switch with few alterations can be used for any other project as well but is designed based on e-bike needs! This project use a clever functionality of....
Ultrasonic distance finder circuit

The circuit described here uses ultrasonic oscillations and operates based on the propagation velocity of these oscillations in the air. Thus, we can easily determine the distance of two points if the time within which the wave travels this distance is....
Simple Metal detector circuit with CD4030

Sometimes the precious metals are hidden too deep and are not detected except with complicated devices. In many cases, however, small pieces of precious metal buried near the surface can be detected by relatively simple means. Everyone is very attractive to....
Fully automatic watering circuit for flower pots

Many times for various reasons we forget or can not water the plants that we have in our homes. And many humidity sensors units just notify us with a beeping sound or with a flashing light, that the pot needs watering. But what if we are away from home? This....
Simple deep searching metal detector circuit

The principle behind a metal detector is really very simple. Proof of this is the circuit that follows, in which it proves that the construction of a metal detector can be done in the minute, with few components that we find very easily everywhere. With the....
Sub-Harmonic Bass Converter for Electric Guitars

The sub-harmonic bass generator is a sound producing unit for guitars. The sound it produces looks very much like that of the bass guitar. The octave generator is sometimes quite unusual since it does not produce any of the usual ways of coloring the sound,....
Echo Depth Sounding Sonar for Boats

In the past the sounding (sea bottom measurement) was done with the "bullet", that is, with a heavy lead object that the seamen plucked into the sea hung from a calibrated rope. As soon as the "bullet" reached the bottom, the depth appeared directly from the....
100W HiFi Audio Amplifier Circuit

This Amplifier was designed to have the following specifications: Distortion less than 0.1% at full power of 100W even at 20KHz. Power has to be attributed to an extended bandwidth. The output transistors must be protected against short circuits. The power....
Plant-Pot Water Level Indicator Circuit

A series of LEDs serve to alert the gardener when plants need water. Using two conventional digital integrated LEDs and a series of LEDs, we make a very useful device for gardening. The device detects the amount of water in the pot and alerts the grower.....

Create NOW your QR MENU for your Restaurant / Hotel / Bar / Caffe,

Comprehensive ordering/paying features. fully personalized to suit your Business.

Update Anytime! Easy and Simple!

Popular Circuits

25 Watt amplifier

Transistors are used for current sources. Base drive for these transistors is derived from the...

Simple LF converter

This converter allows coverage from 25 kHz up to 500 kHz. Use short coax from the converter to...

Voltmeter + Ammeter LCD panel

This multimeter was designed to measure output voltage and current in a PSU, where the current...

transistors Low power low voltage slow (0.1Hz) oscillator

The power supply varies, and the circuit must operate on under 10uA of current (not counting...

Bidirectional motor control (driver) circuit for Robotics beginners

How can we rotate a DC motor in clockwise and anti clockwise directions Or how can we rotate a...