Liquid food quality fingerprint-based identifier
A fingerprint and liquid food technology, which is applied in the field of liquid food detection instruments, can solve the problems of long operation period, complicated instrument operation, and high price, and achieve the effects of convenient collection and analysis, simple operation, and simple circuit production
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[0018] Such as figure 1 As shown, the liquid food quality fingerprint recognition instrument of the present invention includes a signal generation and acquisition controller U1, a constant potential unit U2, a fingerprint collector U3, a current-to-voltage circuit U4, a computer U5, an analog switch and a working electrode conversion device; The signal generation and collection controller U1 is connected to the reference electrode and the auxiliary electrode in the fingerprint collection device U3 through the constant potential unit U2, and the working electrode in the fingerprint collection device U3 is connected to the working electrode conversion device, an analog switch and a current-to-voltage circuit U4 is connected to computer 5 .
[0019] Among them, the signal generation and acquisition controller U1 can use the USB-6009 data acquisition card of NI Company, and the computer U5 can use a notebook computer. The first analog output terminal AO1 of the data acquisition c...
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