Piezoelectric quartz crystal sensor for explosive detection

The utility model discloses a piezoelectric quartz crystal sensor for explosive detection. The piezoelectric quartz crystal sensor comprises a detection crystal, a reference crystal, a detection oscillation circuit, a reference oscillation circuit, a waveform conversion circuit, a phase-locked ampli...

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Bibliographic Details
Main Author WU DEYAN
Format Patent
LanguageChinese
English
Published 02.10.2013
Subjects
DETECTING MASSES OR OBJECTS
GEOPHYSICS
GRAVITATIONAL MEASUREMENTS
INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIRCHEMICAL OR PHYSICAL PROPERTIES
MEASURING
PHYSICS
TESTING
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Summary:The utility model discloses a piezoelectric quartz crystal sensor for explosive detection. The piezoelectric quartz crystal sensor comprises a detection crystal, a reference crystal, a detection oscillation circuit, a reference oscillation circuit, a waveform conversion circuit, a phase-locked amplification circuit, a low-pass filter and a shaping circuit, wherein an output end of the detection crystal is connected with an input end of the detection oscillation circuit; an output end of the detection crystal is connected with an input end of the reference oscillation circuit; an output end of the detection oscillation circuit and an output end of the reference oscillation circuit are connected with an input end of the waveform conversion circuit; an output end of the waveform conversion circuit is connected with an input end of the phase-locked amplification circuit; an output end of the phase-locked amplification circuit is connected with an input end of the low-pass filter; and an output end of the low-pass
Bibliography:Application Number: CN20132199312U