Sound reaction type force sensing abacus computation device and method
A technology of sound feedback and sensing beads, applied in the direction of sound input/output, calculation, computer, etc., can solve problems such as staying in digitization, achieve the effect of relieving task pressure, improving work performance, and realizing multi-terminal interaction
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[0024] The invention provides an acoustic feedback type force-sensing abacus calculation device and method. As shown in Figure 1. The device uses a PVDF piezoelectric film as a sensor 1 for detecting force signals. The film is trial-produced into a thin sheet with a size of 10mm*4mm, and leads 4 are drawn from both ends to transmit the charge signal to the amplifier circuit 5 . The film and the wires are packaged and tightly attached to the surface of the specific beads 2 on the bead rod 3. The wires 4 pass through the small holes on the surface of the beads 2 and lead to the amplifier circuit 5 on the circuit board below the beads. The amplifier circuit 5 Connected with the data acquisition module 6, the output charge signal is amplified into a voltage signal through the amplifier circuit 5 composed of two AD620 amplifier chips, and then converted into a digital electrical signal by a data acquisition module 6 and output to the computer 7. The computer 7 outputs a control si...
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