Interface Piezoelectric Thin Film Sensor with PIC

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Thangadurai
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2010/02/22 22:34:51 (permalink)
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Interface Piezoelectric Thin Film Sensor with PIC

Hi,

In my project i need to monitor the pressure for that i am using the Piezo-electric Thin Film sensor(DT1-028K/L from Measurement Specialties) to sense the applied pressure. I dont how to use the piezo sensor because its changing its amplitude and frequency simultaneously when force is applied to the sensor i dont know how to measure the applied pressure using this sensor and how to set the analog input range for adc for this sensor.Please help me.....

Nano
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    nur53
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    RE: Interface Piezoelectric Thin Film Sensor with PIC 2010/02/23 02:17:31 (permalink)
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    In the following link :
    http://www.ehag.ch/PDF-Files/MSI/PART3-INT.pdf
    on page 4 in Figure 12 Piezo Film Element as a simple Voltage Generator
    I have seen Output Voltage V0 .
    I guess you should create here Output V0 = f(Pressure) diagram .
    According to the value of V0 you can use it directly or after having amplified it by an OPAMP as ADC input to PIC to calculate and show the related pressure .

    http://en.wikipedia.org/wiki/File:SchemaPiezo.gif

    Regards
    post edited by nur53 - 2010/02/23 02:53:20
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