denniskthomas
Newbie level 5

Hello ,
I am doing in project with one Mild Steel rode.Here I am getting a maximum deflection of 20 micro meter only when I apply a rotational force.Is there any way to detect this much small deflection.
I can use strain gauge to detect this ,but the problem is I want to do this project under water.So it is not possible.
So it will be very helpful if anyone help me.
---------- Post added at 14:57 ---------- Previous post was at 14:53 ----------
now i am using the principle of metal detector to detect the deflection.The principle is that when an conductor cuts a magnetic field,it will change the value of magnetic field.Since the deflection is very less,so it is very difficult to get variation by this method.
can anyone help me?
I am doing in project with one Mild Steel rode.Here I am getting a maximum deflection of 20 micro meter only when I apply a rotational force.Is there any way to detect this much small deflection.
I can use strain gauge to detect this ,but the problem is I want to do this project under water.So it is not possible.
So it will be very helpful if anyone help me.
---------- Post added at 14:57 ---------- Previous post was at 14:53 ----------
now i am using the principle of metal detector to detect the deflection.The principle is that when an conductor cuts a magnetic field,it will change the value of magnetic field.Since the deflection is very less,so it is very difficult to get variation by this method.
can anyone help me?