Difference between revisions of "Strain Gauge Amplifier"

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==== Formulas ====
 
==== Formulas ====
<nowiki>Vout[mV] = G * Vex[V] * Sensitivity[mV/V] * Load/(Rated Load)</nowiki>
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<syntaxhighlight lang=basic style="border:0px dashed blue">
 +
 
 +
 
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G = 1  ;Amplifier Gain
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 +
Vout[mV] = G * Vex[V] * Sensitivity[mV/V] * Load/(Rated Load)</nowiki>
  
 
<nowiki>Load = Vout*(Rated Load) / (G * Vex * Sensitivity)</nowiki>
 
<nowiki>Load = Vout*(Rated Load) / (G * Vex * Sensitivity)</nowiki>
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* Vout = Output Voltage of the Amplifier
 
* Vout = Output Voltage of the Amplifier
 
* G = Amplifier Gain
 
* G = Amplifier Gain
 
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</syntaxhighlight>
  
  

Revision as of 13:25, 6 October 2017

Connection and Wiring Guidelines

Load Cell

A load cell based on strain gauge sensors is basically a full wheatstone bridge which is specified by its voltage sensibility in [mV/V] of the applied excitation voltage and the load sensibility in [Applied Load/Rated Load].

The SGA-2 Amplifier can be connected either in 4- or 6 wire mode:

Sga 6wire full bridge.JPG Sga 4wire full bridge.JPG

The 6-wire mode compensate any voltage drops on the excitation voltage line between the amplifier and the sensor/load cell.

Formulas

G = 1  ;Amplifier Gain

Vout[mV] = G * Vex[V] * Sensitivity[mV/V] * Load/(Rated Load)</nowiki>

<nowiki>Load = Vout*(Rated Load) / (G * Vex * Sensitivity)</nowiki>

where:
* Vout = Output Voltage of the Amplifier
* G = Amplifier Gain


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