Patent RU-2234695-C1 (RU)
Inventor: GARTSEV N A
IPC: G01N24/00
Filed: 2003-03-06
Granted: 2004-08-20
Abstract: FIELD: detection of drugs and explosives. 
     SUBSTANCE: the invention presents a detector for explosives and drugs detection. The device used for detection of drugs and explosives contains a signal processor, an indicating device, a receiving device, a synthesizer of frequencies, a synchronizer, a power amplifier, a nuclear quadrupole resonance sensor JAKR, a band pass filter and a damping device. At that the first output of the synchronizer is connected to the first input of the receiving device, the second output of the synchronizer is connected to the second input of the receiving device, the first input of the synchronizer is connected to an output of the synthesizer of frequencies; an input of the damping device is connected to the third output of the synchronizer, and an output of the damping device is connected to first input of the nuclear quadrupole resonance sensor JAKR; the fourth output of the synchronizer is connected to the input of the power amplifier, output of which is connected to the input of the band pass filter; the output the band pass filter is connected to the second input of the nuclear quadrupole resonance sensor JAKR. The exit of the nuclear quadrupole resonance sensor JAKR is connected to the third input of the receiving device; the first and the second outputs of the receiving device are connected accordingly to the first and second inputs of the signal processor and the first and the second outputs of the signal processor are connected to the first and second inputs of the indicating device; and the third output of the signal processor is connected to the second input of the synchronizer. The third input of the synchronizer is the input of a device to detect explosives and drugs. At that the special feature of the detector is addition of the following members: a converter of control signals, a controller, a permanent storing device, the first threshold device, the second threshold device, a control signals driver, an execution unit, an execution unit position sensing device, a temperature sensor. At that the fifth output of the synchronizer is connected to an input of the control signal converter, out put of which is connected to the in series connected the control unit and the permanent storage device. The first output of the permanent storage device is connected to the first input of the first threshold device, the output of the first threshold device is connected to the first input of the control signals driver, the first output the control signals driver is connected to an input of the execution unit, the second output of the permanent storage device is connected to the first input of the second threshold device, the output of the second threshold device is connected to the second input of the control signals driver, the output of the control signals converter is connected to the third input of the control signals driver, the second output of the control signals driver is connected to the third input of the indicating device, the output of the temperature sensor is connected to the second input of the first threshold device), the first output of the execution unit position sensing device is connected to the second input of the second threshold device, the second output of the execution unit position sensing device is connected to the fourth input of the control signals driver and the fourth input of the indicating device, the first output of the signal processor is connected to the second input of the control unit, The exit of the final control unit is mechanically coupled to the nuclear quadrupole resonance sensor JAKR. The technical result is an increased probability to find out explosives and drugs in case something under check hinders operation of the detector. 
     EFFECT: increased probability to find out explosives and drugs. 
     3 cl, 6 dwg