The invention provides a charge-
voltage converter for a piezoelectric intelligent aggregate
seismic damage monitoring system. The charge-
voltage converter is formed by connecting a plurality of
integrated circuit plates in parallel. Each
integrated circuit plate comprises a
signal source amplifying unit, a
control unit, a
gain display unit and a power supplying unit, wherein the
signal source amplifying unit is formed by sequentially connecting a charge-
voltage conversion circuit, a controllable
gain amplifying circuit, a controllable filter circuit, a low-pass filter circuit, a high-pass filter circuit and a voltage ejection follower; the
gain display unit comprises an
electronic switch and a gain indicator light circuit; the
control unit is respectively connected with an ejection follower output end, the controllable gain amplifying circuit, the controllable filter circuit, the
electronic switch and a computer
signal acquisition
system, and is used for monitoring an output signal, controlling voltage gain and gain display and controlling the filter
cutoff frequency; and the output voltage and the corresponding gain value are sent to a computer
data acquisition system through an interface to display. The charge-
voltage converter has the advantages of being capable of simultaneously acquiring multi-path of signals, reliably monitoring the concrete structure dynamic damage in seismic processes with different intensities; and the charge-
voltage converter is simple in construction and stable in performance.