v = Data1_IN_VXH;
t1 = linspace(1,22.626,2262)
t2 = linspace(1,22.626,2261)
%dv = diff(v);
%dt = diff(t1).';
a = gradient(v);
%plot(t1,Data1_IN_VXH,'g',t1,a,'b')
plot(t1,a)