Vlady
New Member
I am new to this forum.
I am currently working on a project that will be able to measure an outside pressure. Using Setra 270 Transducer that has a range of 800-1150HPA. Output voltage is 0-5vdc depending on pressure. This is a very accurate pressure reader as some of you might be familiar with.
Easy part is just having an A/D converter and have it displayed. But this sensor is not as linear as would like it to be. It has reference points. Just so you may have an idea here is example of it.
HPA Vdc(output)
800hPa -0.004Vdc
820hPa 0.2857Vdc
850hPa 0.7151Vdc
870hPa 1.0009Vdc
900hPa 1.4294Vdc
920hPa 1.7152Vdc
950hPa 2.1436Vdc
And so on……
So my question is what kind of circuit you would recommend as far as type of A/D converter that would be accurate to the 4th digit, Programmable microcontrollers and interface. The second part of my question is software. Is there any microcontrollers that can be programmed to take into account reference points? My weakness is programming.
I hope this makes some since….
Any help would be greatly appreciated
Thanks
Vlad
:?:
I am currently working on a project that will be able to measure an outside pressure. Using Setra 270 Transducer that has a range of 800-1150HPA. Output voltage is 0-5vdc depending on pressure. This is a very accurate pressure reader as some of you might be familiar with.
Easy part is just having an A/D converter and have it displayed. But this sensor is not as linear as would like it to be. It has reference points. Just so you may have an idea here is example of it.
HPA Vdc(output)
800hPa -0.004Vdc
820hPa 0.2857Vdc
850hPa 0.7151Vdc
870hPa 1.0009Vdc
900hPa 1.4294Vdc
920hPa 1.7152Vdc
950hPa 2.1436Vdc
And so on……
So my question is what kind of circuit you would recommend as far as type of A/D converter that would be accurate to the 4th digit, Programmable microcontrollers and interface. The second part of my question is software. Is there any microcontrollers that can be programmed to take into account reference points? My weakness is programming.
I hope this makes some since….
Any help would be greatly appreciated
Thanks
Vlad
:?: