Member #514089

Member Since: January 27, 2014

Country: Spain

  • Hi , I recently purchased two sensors and reading the comments I ’ve gotten them work in the following ways :

    1 - . Black - Vss White - +5 Vdc Red - Signal

    Then I measure the voltage difference between the red wires and increase as the effort mV. If I press a sensor gives a positive value and if I pull the other gives a negative value. Right now, the two are at rest and the multimeter will mark me 0.6 mV, I suppose it’s an error rate of internal resistance.

    2 - . First sensor : Black - Vss White - +5 Vdc

    Second sensor : White - Vss Black - +5 Vdc

    The reading remains at rest 0.1 mV , but pressing either always gives me a positive value.

    I’ll try to get a Ampop to amplify the signal through the red wires and do some tests , what I get is , according to the scheme of the Wheatstone bridge that says to calculate an unknown resistance is needed to know the value of the other three is attempting to use a single sensor but doubt is the temperature compensation , work environment where sensors will suffer sudden temperature changes , so will be at 5 ° C in winter to 40 º C in summer.

    I will try to get the exact given temperature.

    regards

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