Digital caliper with PSoC

[Anonymous]

Hi everybody,

   

I try to develop digital caliper with PSoC instead of ASIC. As you know digital caliper use capacitance change for measure the displacement.

   

First i use TI FDC1004(capasitance to digital converter) for observe capacitance change but i can't get clear results. After that i decide to use

   

PSoC for produce PWM's for input and measure capacitance change. Any body help me how can i use PSoC for capacitance measurement ?

   

Here is the good page for understand how does digital caliper work.

   

http://electronics.stackexchange.com/questions/6713/how-does-an-electronic-caliper-work

[ETRO_SSN583]

What PSOC family are you planning on using ? 3, 4, 5LP ?

       

Regards, Dana.

[Anonymous]

Probably it will be PSoC 3 family but i don't sure. Do you have any idea that which family will more effective for this work ?

[odissey1 · Accepted solution]

        Cankut, Digital caliper system goes far beyond capacitive measurement. Though it does involve it, it is just a tip of the iceberg. If you just need digital caliper reading into PC or some controller (for example for home-made 3D printer), I suggest buying of-the-shelf unit (~$30 on eBay, search "DRO").