CA2289414A1 - Vehicle for analyzing substance mixtures, especially pollutant and warfare agent mixtures - Google Patents
Vehicle for analyzing substance mixtures, especially pollutant and warfare agent mixtures Download PDFInfo
- Publication number
- CA2289414A1 CA2289414A1 CA 2289414 CA2289414A CA2289414A1 CA 2289414 A1 CA2289414 A1 CA 2289414A1 CA 2289414 CA2289414 CA 2289414 CA 2289414 A CA2289414 A CA 2289414A CA 2289414 A1 CA2289414 A1 CA 2289414A1
- Authority
- CA
- Canada
- Prior art keywords
- analyzer
- transport device
- hollow
- vehicle according
- outer shell
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Abandoned
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Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
- H01J49/00—Particle spectrometers or separator tubes
- H01J49/02—Details
- H01J49/04—Arrangements for introducing or extracting samples to be analysed, e.g. vacuum locks; Arrangements for external adjustment of electron- or ion-optical components
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01L—CHEMICAL OR PHYSICAL LABORATORY APPARATUS FOR GENERAL USE
- B01L3/00—Containers or dishes for laboratory use, e.g. laboratory glassware; Droppers
- B01L3/56—Labware specially adapted for transferring fluids
- B01L3/565—Seals
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N1/00—Sampling; Preparing specimens for investigation
- G01N1/02—Devices for withdrawing samples
- G01N1/22—Devices for withdrawing samples in the gaseous state
- G01N1/2273—Atmospheric sampling
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N1/00—Sampling; Preparing specimens for investigation
- G01N1/02—Devices for withdrawing samples
- G01N2001/022—Devices for withdrawing samples sampling for security purposes, e.g. contraband, warfare agents
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N30/00—Investigating or analysing materials by separation into components using adsorption, absorption or similar phenomena or using ion-exchange, e.g. chromatography or field flow fractionation
- G01N30/02—Column chromatography
- G01N2030/022—Column chromatography characterised by the kind of separation mechanism
- G01N2030/025—Gas chromatography
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- Chemical & Material Sciences (AREA)
- Health & Medical Sciences (AREA)
- Clinical Laboratory Science (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Analytical Chemistry (AREA)
- Sampling And Sample Adjustment (AREA)
- Investigating Or Analyzing Materials By The Use Of Electric Means (AREA)
Abstract
A vehicle being equipped for analyzing substance mixtures has an outer shell enclosing an interior. At least one analyzer is mounted in the interior. A transport device is connected with a first end to the analyzer. The transport device penetrates the outer shell so that a second end of the transport device is positioned external to the outer shell. The transport device has a first hollow member with a channel for transporting the substance mixture from the exterior of the outer shell to the analyzer. The first end of the transport device has a closure device for gas-tightly closing the transport device when the first end is to be detached from the analyzer.
Description
Background of the Invention The present invention relates to a vehicle for analyzing/detecting substance mixtures, especially pollutant and warfare agent mixtures, comprising a substance mixture receiver, an analyzer inside the vehicle, and a transport device for transporting the substance mixture from the receiver to the analyzer.
It is known to provide transport tanks with a device for detecting warfare agents. The device for detecting warfare agents is comprised, for example, of a double wheel sensing device that is placed onto the ground, a sensor with sensor head, and a mass spectrometer which is mounted in the tank and connected to the sensor. The wheels of the double wheel sensing device are connected respectively to a pivot arm whose movement can be controlled from within the tank.
For determining the contamination of the soil, a wheel is placed onto the ground and subsequently moved to the sensor head of the sensor so that the contamination adhering to the running surface of the wheel can be guided via the sensor into the mass spectrometer for detection. At the same time, the second wheel can be placed onto the ground for a new sample taking action.
When none of the sensing wheels is positioned at the sensing head of the sensor, it is possible to detect airborne contamination at the sensing head and to analyze it with the aid of the mass spectrometer.
However, contaminants which adhere to the sensing head after contact with the running wheels can negatively affect the analysis of further air or soil contamination so that the detection and analysis of locally varying contaminations cannot be reliably ensured.
It is therefore an object of the present invention to increase the measuring reliability for determination of locally varying contaminants external to the vehicle.
Summary of the Invention Inventively, this object is solved in that a vehicle selected for this task comprises a transport device for transporting the substance mixture from the external receiver to the analyzer. The transport device is in the form of a hollow member. Within the hollow member the mixture to be analyzed is transported, wherein the hollow member of the transport device penetrates the outer shell of the vehicle and is connected to the analyzer mounted within the vehicle.
The end of the hollow member of the transport device which is connected to the analyzer is provided with a closure device for gas-tightly closing the transport device upon separation of the transport device from the analyzer.
The invention has the advantage that a transport device, if contaminants adhere to its inner walls and thus may cause erroneous readings, can be separated from the analyzer and can be closed off at its end so that it can be removed from the vehicle.
Since the pressure within the interior of the vehicle is increased relative to the external air pressure, it is possible to attach replacement transport devices to the outer shell of the vehicle and to connect them with the analyzer without running the risk that contaminated outside air can penetrate into the interior of the vehicle. Accordingly, a transport device free of contamination is then again available for further detection and analysis.
In a preferred embodiment of the invention, the transport device in the form of a hollow member is embodied as a hose connection, wherein the end facing away from the analyzer is embodied as the external substance mixture receiver.
The hose connections can be pre-shaped in order to analyze substance mixtures within defined regions of the outside surface area of the vehicle. It is also possible to embody the hose connection facing away from the vehicle to be flexible so that an adaptation to the ground contour is possible and the contamination at the ground can be safely received and detected.
For detecting the harmful substances, pollutants, or warfare agents at different predetermined levels, the hose connection can be fixed by a rigid stabilization member with respect to its position external to the vehicle. In a further embodiment of the invention, the rigid stabilization member is a rigid pipe or tubing fastened to the outer shell of the vehicle and enclosing the hose connection.
The vehicle may be provided with a hose connection supply from which the desired length of hose connection is to be cut or which is in the form of a plurality of already cut-to-length hose portions. Such a hose supply ensures over a comparatively long service life proper analysis by replacing contaminated hose connections with a respectively supplied hose portion within the vehicle for the purpose of avoiding erroneous analysis results. For detecting harmful substances and warfare agent concentrations at different levels above the ground, it is possible to provide a transport device in the form of at least two separate hollow members guided through the outer shell of the vehicle so that the received substance mixtures are then guided to at least one analyzer. Since the measurements at the exterior of the vehicle, for example, close to the ground and at the head level of an average height person, are performed independently, the measuring results can be correlated with a certain measuring location.
As an analyzer for analyzing the substance mixtures, it is possible to employ inventively an ion mobility spectrometer.
In a preferred embodiment of the measuring arrangement, the analyzer is a combination of an ion mobility spectrometer and a gas chromatographic separation column. It is furthermore possible to arrange an ion mobility spectrometer downstream of the gas chromatographicseparation column which is provided for separation of the mixtures into the respective substances. Individual substances of the mixture separated by the separation column are then supplied to the downstream ion mobility spectrometer for further analysis.
For connecting a transport device for a substance mixture to an analyzer, an adaptor may be provided which is comprised of a hollow member and a closure device insertable into the hollow member. The hollow member is at one end closed off by a hollow needle receptacle having arranged therein a hollow needle projecting into the hollow chamber of the hollow member. The closure device has a septum which is penetrated by the hollow needle that is fixed within the closure device. The penetration of the septum by the hollow needle realizes a gas communication of the closure device.
The material of the septum is expediently selected such that the opening resulting from penetration by the hollow needle is closed automatically upon removal of the hollow needle from the septum. When the closure device is configured for attachment of a flexible hose connection and when the hollow needle receptacle and the hollow needle are correlated with the analyzer and connected thereto, contaminants within the hose connection cannot enter the interior of the vehicle after removal of the hose end from the analyzer.
Brief Description of the Drawings The object and advantages of the present invention will appear more clearly from the following specification in conjunction with the accompanying drawings, in which:
Fig. 1 shows schematically a vehicle with equipment for analyzing warfare agents;
Fig. 2 shows an arrangement of the evaluation and analyzing devices as viewed by the operator;
Fig. 3 shows a representation of the principle connection of the evaluation and analyzing devices;
Figs.4 show an adaptor for connecting a hose and 5 connection to the analyzer; and Fig. 6 shows a hose connection penetrating the outer shell of the vehicle.
Description of Preferred Embodiments The present invention will now be described in detail with the aid of several specific embodiments utilizing Figures 1 through 6.
Fig. 1 shows two ion mobility spectrometers 1, 2 and a gas chromatographic separation column 3 arranged in the schematically represented vehicle, the three components 1, 2, 3 being part of an analyzer for analyzing the harmful substances and/or warfare agents, wherein a further ion mobility spectrometer 4 can be arranged downstream thereof as a further part of the analyzer. The hose connections 5, 6 extending to the ion mobility spectrometers 1, 2 can be comprised of Teflon, PE (polyethylene), or similar materials. The hose connections penetrate the outer shell 7 of the vehicle at penetration locations 8, 9 and extend to respective pollutant or harmful substances receivers 10, 11, one being positioned close to the ground and one being spaced from the _7 _ ground. The hose connection 6 extending to the receiver 11 positioned close to the ground extends within a tube 12 that ensures the required measuring position to the hose connection 6.
The two ion mobility spectrometers 1, 2 and the gas chromatographic separation column 3, and well as a computer 13, an interface 14, and a hose supply 15 (Fig. 2) are supported on a vibration-dampened base plate and are fastened rigidly by a securing frame 16 (Fig. 1 ) to the exterior shell 7 of the vehicle.
For connecting the hose connections 5, 6 to the ion mobility spectrometers 1, 2 or to the gas chromatographic separation column 3, an adaptor 17 is used which is embodied at the side facing away from the analyzer as a hollow member with a hollow chamber 18 and is closed off by a hollow needle receptacle 19. A
hollow needle 20 is received in the hollow needle receptacle 19. It projects with its tip into the hollow chamber 18 of the hollow member (Fig. 5).
The spring clamps 21 arranged at the wall of the hollow chamber 18 of the hollow member serve as a fixation means for the connecting element 22 at the hose. The connecting element 22 has an inner channel 23 which is closed off by the gas-tight septum 24.
The septum 24 is comprised of a material, such as Teflon or PE, _g _ that can be penetrated by the hollow needle 20 and can sealingly rest thereat. After removal of the hollow needle 20, the opening caused by the hollow needle is automatically closed off in a gas-tight manner by the material of the septum. The septum is pressed by a connecting nut 26 provided with a bore 25 into the connecting element 22 so as to seal off the adaptor. The end piece 27 facing the hose connection of the connecting element 22 is designed for slipping the hose connection 5, 6 thereon and for fastening it thereto (Fig. 4).
A penetration arrangement 28 of the hose connection 5, 6 through the outer shell 7 of the vehicle is illustrated in Fig. 6. The base member 29 for the penetration arrangement 28 has a flange 30 which is fastened by means of rivets 31 to the outer shell 7 of the vehicle. For preventing exterior air from entering the interior of the vehicle, a seal 32 is used between the flange 30 and outer shell 7 of the vehicle. The hose connection 5, 6 penetrating the base member 29 is secured by a coupling nut 33 acting on a pressure seal 34 resting on the end face of the base member 29. This prevents penetration of contaminated exterior air into the vehicle at the outer wall of the hose connection.
The hose connections 5, 6 are connected by the above _g _ mentioned adaptor 17 to the ion mobility spectrometers 1 and 2.
The gas chromatographic separation column 3 comprises a modified injection module for sample application and carrier gas supply in comparison to the ion mobility spectrometers 1, 2. This module sucks air in through an opening during the measuring operation from the interior of the vehicle and guides the air as a carrier gas via filters to the gas chromatographic separation column 3. Such an injection module is known to a person skilled in the art and will therefore not be disclosed in further detail in this context.
The injection module has arranged thereat a hollow member with hollow chamber 18 of the adapter 17 so that one of the hose connections 5, 6 can be attached. Via a controlled multipath valve the carrier gas or the substance mixture in the hose connection 5, 6 is guided to the entry of the gas chromatographic separation column 3. The analysis of the individual contaminants of the mixture is then carried out in the ion mobility spectrometer 4 arranged downstream.
Data exchange between the individual components and the computer 13 is possible by a suitable interface 14. The principal connection scheme of the individual components of a suitable measuring arrangement is shown in Fig. 3.
The operation of the measuring arrangement is such that a permanent monitoring mode is employed in which the ion mobility spectrometers 1 and 2 constantly analyze the substance mixture received at a location close to the ground or at a spacing to the ground. As soon as a predetermined trigger threshold is surpassed in one of the ion mobility spectrometers 1, 2, the computer 13 receives a corresponding signal and the operator is alerted by the computer to switch to analysis mode. For this purpose, the respective hose connection 5, 6 is separated from the ion mobility spectrometer 1 or 2 and is connected to the gas chromatographic separation column 3. After completion of sample application, the air which contains pollutants is flushed out of the hollow needle 20 back into the hose connection 5 or 6 so that the contaminated air is removed from the hollow needle 20 in order to avoid contamination of the interior of the vehicle.
For exchanging a hose connection 5, 6, the flushing function of the ion mobility spectrometers is also actuated. Subsequently, the contaminated hose connection 5, 6 can be removed from the hollow needle receptacle 19 in which it was fastened during the measuring operation and is then pushed through the outer shell 7 to the exterior of the vehicle. A hose connection of the hose supply 15 is then placed under slight pressure into the hollow needle receptacle 19 so that the hollow needle 20 will penetrate the septum 24 and will again allow flow of gas to the analyzer.
The specification incorporates by reference the disclosure of German priority document 198 52 701.2 of 16 November 1998.
The present invention is, of course, in no way restricted to the specific disclosure of the specification and drawings, but also encompasses any modifications within the scope of the appended claims.
It is known to provide transport tanks with a device for detecting warfare agents. The device for detecting warfare agents is comprised, for example, of a double wheel sensing device that is placed onto the ground, a sensor with sensor head, and a mass spectrometer which is mounted in the tank and connected to the sensor. The wheels of the double wheel sensing device are connected respectively to a pivot arm whose movement can be controlled from within the tank.
For determining the contamination of the soil, a wheel is placed onto the ground and subsequently moved to the sensor head of the sensor so that the contamination adhering to the running surface of the wheel can be guided via the sensor into the mass spectrometer for detection. At the same time, the second wheel can be placed onto the ground for a new sample taking action.
When none of the sensing wheels is positioned at the sensing head of the sensor, it is possible to detect airborne contamination at the sensing head and to analyze it with the aid of the mass spectrometer.
However, contaminants which adhere to the sensing head after contact with the running wheels can negatively affect the analysis of further air or soil contamination so that the detection and analysis of locally varying contaminations cannot be reliably ensured.
It is therefore an object of the present invention to increase the measuring reliability for determination of locally varying contaminants external to the vehicle.
Summary of the Invention Inventively, this object is solved in that a vehicle selected for this task comprises a transport device for transporting the substance mixture from the external receiver to the analyzer. The transport device is in the form of a hollow member. Within the hollow member the mixture to be analyzed is transported, wherein the hollow member of the transport device penetrates the outer shell of the vehicle and is connected to the analyzer mounted within the vehicle.
The end of the hollow member of the transport device which is connected to the analyzer is provided with a closure device for gas-tightly closing the transport device upon separation of the transport device from the analyzer.
The invention has the advantage that a transport device, if contaminants adhere to its inner walls and thus may cause erroneous readings, can be separated from the analyzer and can be closed off at its end so that it can be removed from the vehicle.
Since the pressure within the interior of the vehicle is increased relative to the external air pressure, it is possible to attach replacement transport devices to the outer shell of the vehicle and to connect them with the analyzer without running the risk that contaminated outside air can penetrate into the interior of the vehicle. Accordingly, a transport device free of contamination is then again available for further detection and analysis.
In a preferred embodiment of the invention, the transport device in the form of a hollow member is embodied as a hose connection, wherein the end facing away from the analyzer is embodied as the external substance mixture receiver.
The hose connections can be pre-shaped in order to analyze substance mixtures within defined regions of the outside surface area of the vehicle. It is also possible to embody the hose connection facing away from the vehicle to be flexible so that an adaptation to the ground contour is possible and the contamination at the ground can be safely received and detected.
For detecting the harmful substances, pollutants, or warfare agents at different predetermined levels, the hose connection can be fixed by a rigid stabilization member with respect to its position external to the vehicle. In a further embodiment of the invention, the rigid stabilization member is a rigid pipe or tubing fastened to the outer shell of the vehicle and enclosing the hose connection.
The vehicle may be provided with a hose connection supply from which the desired length of hose connection is to be cut or which is in the form of a plurality of already cut-to-length hose portions. Such a hose supply ensures over a comparatively long service life proper analysis by replacing contaminated hose connections with a respectively supplied hose portion within the vehicle for the purpose of avoiding erroneous analysis results. For detecting harmful substances and warfare agent concentrations at different levels above the ground, it is possible to provide a transport device in the form of at least two separate hollow members guided through the outer shell of the vehicle so that the received substance mixtures are then guided to at least one analyzer. Since the measurements at the exterior of the vehicle, for example, close to the ground and at the head level of an average height person, are performed independently, the measuring results can be correlated with a certain measuring location.
As an analyzer for analyzing the substance mixtures, it is possible to employ inventively an ion mobility spectrometer.
In a preferred embodiment of the measuring arrangement, the analyzer is a combination of an ion mobility spectrometer and a gas chromatographic separation column. It is furthermore possible to arrange an ion mobility spectrometer downstream of the gas chromatographicseparation column which is provided for separation of the mixtures into the respective substances. Individual substances of the mixture separated by the separation column are then supplied to the downstream ion mobility spectrometer for further analysis.
For connecting a transport device for a substance mixture to an analyzer, an adaptor may be provided which is comprised of a hollow member and a closure device insertable into the hollow member. The hollow member is at one end closed off by a hollow needle receptacle having arranged therein a hollow needle projecting into the hollow chamber of the hollow member. The closure device has a septum which is penetrated by the hollow needle that is fixed within the closure device. The penetration of the septum by the hollow needle realizes a gas communication of the closure device.
The material of the septum is expediently selected such that the opening resulting from penetration by the hollow needle is closed automatically upon removal of the hollow needle from the septum. When the closure device is configured for attachment of a flexible hose connection and when the hollow needle receptacle and the hollow needle are correlated with the analyzer and connected thereto, contaminants within the hose connection cannot enter the interior of the vehicle after removal of the hose end from the analyzer.
Brief Description of the Drawings The object and advantages of the present invention will appear more clearly from the following specification in conjunction with the accompanying drawings, in which:
Fig. 1 shows schematically a vehicle with equipment for analyzing warfare agents;
Fig. 2 shows an arrangement of the evaluation and analyzing devices as viewed by the operator;
Fig. 3 shows a representation of the principle connection of the evaluation and analyzing devices;
Figs.4 show an adaptor for connecting a hose and 5 connection to the analyzer; and Fig. 6 shows a hose connection penetrating the outer shell of the vehicle.
Description of Preferred Embodiments The present invention will now be described in detail with the aid of several specific embodiments utilizing Figures 1 through 6.
Fig. 1 shows two ion mobility spectrometers 1, 2 and a gas chromatographic separation column 3 arranged in the schematically represented vehicle, the three components 1, 2, 3 being part of an analyzer for analyzing the harmful substances and/or warfare agents, wherein a further ion mobility spectrometer 4 can be arranged downstream thereof as a further part of the analyzer. The hose connections 5, 6 extending to the ion mobility spectrometers 1, 2 can be comprised of Teflon, PE (polyethylene), or similar materials. The hose connections penetrate the outer shell 7 of the vehicle at penetration locations 8, 9 and extend to respective pollutant or harmful substances receivers 10, 11, one being positioned close to the ground and one being spaced from the _7 _ ground. The hose connection 6 extending to the receiver 11 positioned close to the ground extends within a tube 12 that ensures the required measuring position to the hose connection 6.
The two ion mobility spectrometers 1, 2 and the gas chromatographic separation column 3, and well as a computer 13, an interface 14, and a hose supply 15 (Fig. 2) are supported on a vibration-dampened base plate and are fastened rigidly by a securing frame 16 (Fig. 1 ) to the exterior shell 7 of the vehicle.
For connecting the hose connections 5, 6 to the ion mobility spectrometers 1, 2 or to the gas chromatographic separation column 3, an adaptor 17 is used which is embodied at the side facing away from the analyzer as a hollow member with a hollow chamber 18 and is closed off by a hollow needle receptacle 19. A
hollow needle 20 is received in the hollow needle receptacle 19. It projects with its tip into the hollow chamber 18 of the hollow member (Fig. 5).
The spring clamps 21 arranged at the wall of the hollow chamber 18 of the hollow member serve as a fixation means for the connecting element 22 at the hose. The connecting element 22 has an inner channel 23 which is closed off by the gas-tight septum 24.
The septum 24 is comprised of a material, such as Teflon or PE, _g _ that can be penetrated by the hollow needle 20 and can sealingly rest thereat. After removal of the hollow needle 20, the opening caused by the hollow needle is automatically closed off in a gas-tight manner by the material of the septum. The septum is pressed by a connecting nut 26 provided with a bore 25 into the connecting element 22 so as to seal off the adaptor. The end piece 27 facing the hose connection of the connecting element 22 is designed for slipping the hose connection 5, 6 thereon and for fastening it thereto (Fig. 4).
A penetration arrangement 28 of the hose connection 5, 6 through the outer shell 7 of the vehicle is illustrated in Fig. 6. The base member 29 for the penetration arrangement 28 has a flange 30 which is fastened by means of rivets 31 to the outer shell 7 of the vehicle. For preventing exterior air from entering the interior of the vehicle, a seal 32 is used between the flange 30 and outer shell 7 of the vehicle. The hose connection 5, 6 penetrating the base member 29 is secured by a coupling nut 33 acting on a pressure seal 34 resting on the end face of the base member 29. This prevents penetration of contaminated exterior air into the vehicle at the outer wall of the hose connection.
The hose connections 5, 6 are connected by the above _g _ mentioned adaptor 17 to the ion mobility spectrometers 1 and 2.
The gas chromatographic separation column 3 comprises a modified injection module for sample application and carrier gas supply in comparison to the ion mobility spectrometers 1, 2. This module sucks air in through an opening during the measuring operation from the interior of the vehicle and guides the air as a carrier gas via filters to the gas chromatographic separation column 3. Such an injection module is known to a person skilled in the art and will therefore not be disclosed in further detail in this context.
The injection module has arranged thereat a hollow member with hollow chamber 18 of the adapter 17 so that one of the hose connections 5, 6 can be attached. Via a controlled multipath valve the carrier gas or the substance mixture in the hose connection 5, 6 is guided to the entry of the gas chromatographic separation column 3. The analysis of the individual contaminants of the mixture is then carried out in the ion mobility spectrometer 4 arranged downstream.
Data exchange between the individual components and the computer 13 is possible by a suitable interface 14. The principal connection scheme of the individual components of a suitable measuring arrangement is shown in Fig. 3.
The operation of the measuring arrangement is such that a permanent monitoring mode is employed in which the ion mobility spectrometers 1 and 2 constantly analyze the substance mixture received at a location close to the ground or at a spacing to the ground. As soon as a predetermined trigger threshold is surpassed in one of the ion mobility spectrometers 1, 2, the computer 13 receives a corresponding signal and the operator is alerted by the computer to switch to analysis mode. For this purpose, the respective hose connection 5, 6 is separated from the ion mobility spectrometer 1 or 2 and is connected to the gas chromatographic separation column 3. After completion of sample application, the air which contains pollutants is flushed out of the hollow needle 20 back into the hose connection 5 or 6 so that the contaminated air is removed from the hollow needle 20 in order to avoid contamination of the interior of the vehicle.
For exchanging a hose connection 5, 6, the flushing function of the ion mobility spectrometers is also actuated. Subsequently, the contaminated hose connection 5, 6 can be removed from the hollow needle receptacle 19 in which it was fastened during the measuring operation and is then pushed through the outer shell 7 to the exterior of the vehicle. A hose connection of the hose supply 15 is then placed under slight pressure into the hollow needle receptacle 19 so that the hollow needle 20 will penetrate the septum 24 and will again allow flow of gas to the analyzer.
The specification incorporates by reference the disclosure of German priority document 198 52 701.2 of 16 November 1998.
The present invention is, of course, in no way restricted to the specific disclosure of the specification and drawings, but also encompasses any modifications within the scope of the appended claims.
Claims (12)
1. A vehicle for analyzing substance mixtures, said vehicle comprising:
an outer shell (7) enclosing an interior;
at least one analyzer (1, 2, 3, 4) mounted in said interior;
a transport device (5, 6) connected with a first end to said analyzer (1, 2, 3, 4);
said transport device (5, 6) penetrating said outer shell (7) so that a second end of said transport device is positioned external to said outer shell (7);
said transport device comprising a first hollow member (5, 6) with a channel for transporting the substance mixture from the exterior of said outer shell (7) to said analyzer (1, 2, 3, 4);
said first end of said transport device having a closure device (22, 24, 26) for gas-tightly closing said transport device when said first end is to be detached from said analyzer (1, 2, 3, 4).
an outer shell (7) enclosing an interior;
at least one analyzer (1, 2, 3, 4) mounted in said interior;
a transport device (5, 6) connected with a first end to said analyzer (1, 2, 3, 4);
said transport device (5, 6) penetrating said outer shell (7) so that a second end of said transport device is positioned external to said outer shell (7);
said transport device comprising a first hollow member (5, 6) with a channel for transporting the substance mixture from the exterior of said outer shell (7) to said analyzer (1, 2, 3, 4);
said first end of said transport device having a closure device (22, 24, 26) for gas-tightly closing said transport device when said first end is to be detached from said analyzer (1, 2, 3, 4).
2. A vehicle according to claim 1, wherein said first hollow member of said transport device is a hose connection (5, 6) and wherein said second end of said transport device is a receiver for the substance mixtures.
3. A vehicle according to claim 2, wherein said transport device comprises a rigid stabilizing member (12) mounted external to said outer shell (7) and wherein a portion of said hose connection (6) extending external to said outer shell (7) is received in said rigid stabilizing member (12) so that said portion of said hose connection (5, 6) has a fixed position defining a fixed receiving level of said receiver above ground.
4. A vehicle according to claim 3, wherein said rigid stabilizing member is a tube fastened to said outer shell (7).
5. A vehicle according to claim 2, comprising a hose supply (15) arranged in said interior for replacing said hose connection when contaminated, wherein said hose supply is a continuous hose to be cut to length as needed or a plurality of cut-to-length hose portions.
6. A vehicle according to claim 2, wherein said transport device has a second hollow member (5, 6) identical to said first hollow member, wherein said second ends of said first and second hollow members (5, 6) are positioned at different receiving levels above ground and wherein the substance mixtures at the different receiving levels are guided to said at least one analyzer (1, 2, 3, 4).
7. A vehicle according to claim 1, wherein said at least one analyzer comprises an ion mobility spectrometer (1, 2).
8. A vehicle according to claim 1, wherein said at least one analyzer comprises a first ion mobility spectrometer (1, 2) and a gas chromatographic separation column (3) for separating the substances in the substance mixture.
9. A vehicle according to claim 8, wherein said analyzer further comprises a second ion mobility spectrometer (4) arranged downstream of said gas chromatographic separation column (3), wherein some of the substances separated by said gas chromatographic separation column (3) are further analyzed in said second ion mobility spectrometer (4).
10. A vehicle according to claim 2, further comprising an adapter (17) connected in line to said transport device and said at least one analyzer (1, 2, 3), said adapter comprising a hollow chamber (18) and a hollow needle receptacle (19) communicating with said hollow chamber (18) and facing said at least analyzer (1, 2, 3, 4) , said adapter (17) further comprising a hollow needle (20) having a tip, said hollow needle (20) positioned in said hollow needle receptacle (19) and said tip extending into said hollow chamber (18), wherein said closure device (22, 24, 26) comprises a gas-tight septum (24) inserted into said hollow chamber (18) and secured therein such that said hollow needle (20) penetrates said septum (24) to thereby make said closure device (22, 24, 26) gas-permeable.
11. A vehicle according to claim 10, wherein said septum consists of a material that, after removal of said hollow needle (20) from said septum (24), will automatically close a hole resulting from penetration of said hollow needle (20).
12. A vehicle according to claim 10, wherein said closure device (22, 24, 26) is configured to receive a flexible hose of said hose connection and wherein said hollow needle receptacle (19) and said hollow needle (20) are connected to said at least one analyzer (1, 2, 3, 4).
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE19852701.2 | 1998-11-16 | ||
| DE19852701 | 1998-11-16 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CA2289414A1 true CA2289414A1 (en) | 2000-05-16 |
Family
ID=7887902
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA 2289414 Abandoned CA2289414A1 (en) | 1998-11-16 | 1999-11-15 | Vehicle for analyzing substance mixtures, especially pollutant and warfare agent mixtures |
Country Status (2)
| Country | Link |
|---|---|
| EP (1) | EP1006347A3 (en) |
| CA (1) | CA2289414A1 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP2657675A3 (en) * | 2012-04-25 | 2016-03-09 | Krauss-Maffei Wegmann GmbH & Co. KG | Track device, vehicle and method for operating a track device |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102009015828A1 (en) | 2009-04-01 | 2010-10-07 | Krauss-Maffei Wegmann Gmbh & Co. Kg | Detection device for ground detections from the interior of a vehicle and vehicle with such a detection device |
| JP5216126B2 (en) * | 2011-08-19 | 2013-06-19 | 三菱重工業株式会社 | Dangerous substance detection system |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3886800A (en) * | 1973-10-15 | 1975-06-03 | John R Boehringer | Gas sampling device |
| DE3835207C1 (en) * | 1988-10-15 | 1989-08-03 | Bruker - Franzen Analytik Gmbh, 2800 Bremen, De | |
| DE4238399C1 (en) * | 1992-11-13 | 1994-03-24 | Bruker Franzen Analytik Gmbh | Mobile mass spectrometer with a sampling device with a rotating detection wheel with a metal rim |
| US5711786A (en) * | 1995-10-23 | 1998-01-27 | The Perkin-Elmer Corporation | Gas chromatographic system with controlled sample transfer |
| DE19543159A1 (en) * | 1995-11-18 | 1997-05-22 | Spectrospin Ag | Ion mobility spectrometer (IMS) |
-
1999
- 1999-11-15 CA CA 2289414 patent/CA2289414A1/en not_active Abandoned
- 1999-11-16 EP EP99122797A patent/EP1006347A3/en not_active Withdrawn
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP2657675A3 (en) * | 2012-04-25 | 2016-03-09 | Krauss-Maffei Wegmann GmbH & Co. KG | Track device, vehicle and method for operating a track device |
Also Published As
| Publication number | Publication date |
|---|---|
| EP1006347A3 (en) | 2002-08-14 |
| EP1006347A2 (en) | 2000-06-07 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| EEER | Examination request | ||
| FZDE | Dead |