jit_singh_tara
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Dear friends ,
i want to know is it possible to set zero in an instrumentation amp.for example:
i want to connect a load cell to a 3 opamp op07 instrumentation amp .
Now we all know that we can set the gain by using gain resistor as shown in the figure.......
But how can we do the zero setting.
the signal from load cell is a differential one . i want:
a. 0V at output at no load ,
b. full 5000mV(5V) at output at full load (i.e) 10mV signal between V1 and V2 in the figure..
I want that when i change the gain resistor value using a trimpot , my no load 0V should not change.
Has anyone ever done this with this kind of an instrumentation amp.
Thx....
i want to know is it possible to set zero in an instrumentation amp.for example:
i want to connect a load cell to a 3 opamp op07 instrumentation amp .
Now we all know that we can set the gain by using gain resistor as shown in the figure.......
But how can we do the zero setting.
the signal from load cell is a differential one . i want:
a. 0V at output at no load ,
b. full 5000mV(5V) at output at full load (i.e) 10mV signal between V1 and V2 in the figure..
I want that when i change the gain resistor value using a trimpot , my no load 0V should not change.
Has anyone ever done this with this kind of an instrumentation amp.
Thx....