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Water Level Sensor and Motor Control

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RONAK ALI

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all respected:
I have worked on project of Water level sensor and Motor Control and successfully completed.
Now I want to further add features to it... Please tell me suitable features
 

Re: Water level sensor and Motor Control

RONAK ALI said:
all respected:
I have worked on project of Water level sensor and Motor Control and successfully completed.
Now I want to further add features to it... Please tell me suitable features
Click to expand...

What is the sensor, used to measure the water level.
 
Re: Water level sensor and Motor Control

I need to display available water level in Liter

resolution 5L
Water tank 500L
 

Re: Water level sensor and Motor Control

bestos said:
very simple u need to use what they call a binary ladder circuit ------------
Click to expand...


To display linear result, we need to find a sensor, What do you recommend
 

Re: Water level sensor and Motor Control

display the content(availability) of the water in tank with LCD.

it will be more useful for the publics....
 

Re: Water level sensor and Motor Control

What about to use a simple metal electrode to sense the water limits?
 


Re: Water level sensor and Motor Control

PA3040 said:
Whare can I buy it? ( Potentiometric float )
I think more hard part is installation.
Can I have plug and play sensor

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Life is more easy with sensor
Click to expand...

its have somewhat life, its life is dela with water type.
 

Re: Water level sensor and Motor Control

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I am doing a similar project. I have 2 uC boards. One is at the tank and it used adc and potentiometic sensor to calculate the liquid level and then sends motor ON or OFF Command using nRF24L01 to motor control board which has another nRF24L01 and it picks up the command and controls the relay which controls the motor (pump).
 

Re: Water level sensor and Motor Control

jayanth.devarayanadurga said:
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I am doing a similar project. I have 2 uC boards. One is at the tank and it used adc and potentiometic sensor to calculate the liquid level and then sends motor ON or OFF Command using nRF24L01 to motor control board which has another nRF24L01 and it picks up the command and controls the relay which controls the motor (pump).
Click to expand...


How about this

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Re: Water level sensor and Motor Control

jayanth.devarayanadurga said:
Pressure sensor can be used to detect water level but It has to be insulated fully so that water doesn't damage the device.
Click to expand...
What are the limitation that we have to face when we use Pressure sensor in your experience

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elecbaba said:
Capacitive plates can be made and place in tank making a capacitor and read capacitance as fluid acts as dielectric and so the capacitance changes with fluid level. Plates can be made wateproof using varnish. A lookup table translate it into available quantity in tank.

http://www.ieec.uned.es/Investigacion/Educon2010/SearchTool/EDUCON2010/papers/2010S03A01.pdf
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Click to expand...

In this method the maintenance cost may be high and result may be very time to time I think
 

Re: Water level sensor and Motor Control

If max pressure given by sensor is 10 Kpas and pressure due to water is 100 kpas then it can't be used because pressure created by water is more than the sensor can sense.
 

Re: Water level sensor and Motor Control

bestos said:
You can just make a simple sensor which is not too hard. But is technical. What u do is use a simple small ball like the one attached in our water closet system. Attach a soft iron to the ball so the iron can be carried up when the ball rises up due to the water level(when water level increases), and then brought down due to the water level too(when water level decreases.). The end of the soft iron is attached to a soft spring also. As the ball moves upward due to rise in water level then the spring is also drawn upward too and vice versa when the water level drops then the spring compresses back. The order end of the spring can be connected to a linear potentiometer. so that there would also be relative displacement as the spring moves upward or downward. Note that it is better to use a straight linear variable potentiometer rather than the circular type as that would be more complicated to sense...... The output from the straight linear potentiometer is then tapped for signal conditioning. Isn't dis easy??
Apart from a resistor u can also use a variable transformer or a linear variable differential transformer. If u are having difficulty in understanding this concept let me know

Hope this helps
Click to expand...

Yes this is good idea. from my perspective instillation and maintenance are very difficult in this regard.

I can suggest more improve than your suggested with bit low mechanical solution

We can use diaphragm that middle connected magnetic cylinder which move up and down base on water pressure to diaphragm and magnetic cylinder move via inductor core which energized voltage according to the magnetic field. (you can see it old washing machine)
we can Install this aware from the water thank. what do you think?

However I need more closed to soiled state solution




Thanks
 
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