Difference b/w voltages in two time frames

[aarief]

Hello,

I am working on LabVIEW for analysis on temparature measurements.

Can anyone help me out-- how to find the difference between two voltage values in two time frames?

I get continuous values of varying voltage from USB module(ez430 RF2500) every second, for example, at time t0 -- 0.415V , at t1 --  0.425V, ......continuous...i want to display the difference between the amplitudes between two time frames continuously (present and previous) in a waveform chart!

Can anyone suggest any method/VI for above!?

Thank in advance. 

[Jochen]

duplicate post