公开(公告)号：WO2017051430A2

公开(公告)日：2017-03-30

申请号：PCT/IN2016/050074

申请日：2016-03-03

Applicant: NANOSNIFF TECHNOLOGIES PVT. LTD.

Inventor： KALE, Nitin S ,  GULLAIYA, Nehul ,  CHANDRATRE, Deepali ,  SANGAVE, Sachin ,  DESAI, Hrishikesh ,  RAO, V Ramgopal ,  MUKHERJI, Soumyo ,  BARDEJA, Kapil

CPC classification number: G01N27/18 ,  G01N1/44 ,  G01N33/227 ,  G01N2001/028

Abstract: An explosive detection system for detecting explosive trace in a sample includes a detection unit, and a processing unit. The detection unit that receives a desorbed sample includes a first heater, a second heater, a first resistance temperature detector (RTD), a second RTD, and an amplifier. The first heater is exposed to the desorbed sample. The first heater and the second heater are supplied with specific voltage for three or more experiments. The first RTD and the second RTD measure changes in resistance due to heating of the first heater and the second heater to calculate voltages across the first RTD and the second RTD. The amplifier amplifies the voltages to calculate a differential voltage for each of the three or more experiments, and converts the differential voltage into a digital signal. The processing unit is configured to process the digital signal to detect explosive trace in the desorbed sample.

Abstract translation: 用于检测样品中的爆炸痕迹的爆炸检测系统包括检测单元和处理单元。 接收解吸样品的检测单元包括第一加热器，第二加热器，第一电阻温度检测器（RTD），第二RTD和放大器。 第一个加热器暴露于解吸的样品。 第一个加热器和第二个加热器供应三个或更多个实验的电压。 第一RTD和第二RTD测量由于第一加热器和第二加热器的加热而改变电阻，以计算跨第一RTD和第二RTD的电压。 放大器放大电压以计算三个或更多个实验中的每一个的差分电压，并将差分电压转换为数字信号。 处理单元被配置为处理数字信号以检测解吸样品中的爆炸痕迹。

公开(公告)号：WO2013175503A2

公开(公告)日：2013-11-28

申请号：PCT/IN2013/000322

申请日：2013-05-20

Applicant: NANOSNIFF TECHNOLOGIES PVT. LTD.

Inventor： PATIL, Sheetal ,  RAO, V. Ramgopal ,  MUKHERJI, Soumyo ,  GULLAIYA, Nehul

IPC: G01N1/10

CPC classification number: G01N1/40 ,  G01N1/405 ,  G01N30/6095

Abstract: The present invention provides a nanostructure based MEMS preconcentrator for detecting chemicals, explosives and gases. The preconcentrator comprises a micro heater, a temperature sensor, and a sorbent layer. The micro heater heats the system to various temperatures. The temperature is read by a micro-resistance based temperature sensor. The sorbent layer is in the form of semi-conducting oxide nanostructures.

Abstract translation: 本发明提供一种用于检测化学品，爆炸物和气体的基于纳米结构的MEMS预浓缩器。 预浓缩器包括微加热器，温度传感器和吸附剂层。 微加热器将系统加热到各种温度。 温度由基于微电阻的温度传感器读取。 吸附剂层是半导体氧化物纳米结构的形式。