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A method for remotely accessing packages suspect of containing hazardous devices. The method includes using a continuous stream of high velocity abrasive particles and/or fluid(s) created in-situ while attached to a remotely or autonomously operated vehicle to breach the exterior surface of a suspec

A method for remotely accessing packages suspect of containing hazardous devices. The method includes using a continuous stream of high velocity abrasive particles and/or fluid(s) created in-situ while attached to a remotely or autonomously operated vehicle to breach the exterior surface of a suspect package well below the impact initiation threshold thus preventing sufficient stimuli to initiate explosive, pyrotechnic, or flammable materials. An automatic standoff device may be used to allow the operator of a remotely operated vehicle or the feedback mechanism of an autonomously operated vehicle to optimally locate the abrasive fluid stream.

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A method for remotely accessing packages suspect of containing hazardous devices. The method includes using a continuous stream of high velocity abrasive particles and/or fluid(s) created in-situ while attached to a remotely or autonomously operated vehicle to breach the exterior surface of a suspec

A method for remotely accessing packages suspect of containing hazardous devices. The method includes using a continuous stream of high velocity abrasive particles and/or fluid(s) created in-situ while attached to a remotely or autonomously operated vehicle to breach the exterior surface of a suspect package well below the impact initiation threshold thus preventing sufficient stimuli to initiate explosive, pyrotechnic, or flammable materials. An automatic standoff device may be used to allow the operator of a remotely operated vehicle or the feedback mechanism of an autonomously operated vehicle to optimally locate the abrasive fluid stream. perature sensor configured to provide a first output signal dependent on the temperature of coolant in the cooling circuit, and said control unit is configured to determine a degree of conversion based on said first output signal. 5. The system according to claim 4 further comprising a second temperature sensor connected to said cooling circuit, said first and second temperature sensors being mounted in the cooling circuit with intermediate cooling channels in the heat exchanger, wherein said control unit is configured to determine heat emission of the heat exchanger based on differences between determined temperatures of the first temperature sensor and of the second temperature sensor. 6. The system according to claim 5, wherein said control unit is configured to estimate the degree of conversion based on the difference between a determined temperature of the first temperature sensor and of the second temperature sensor. 7. The system according to claim 5, wherein said first temperature sensor and said second temperature sensor are placed upstream and downstream from the heat exchanger. 8. The system according to claim 5, said first temperature sensor further comprising a thermostat valve in the cooling circuit, said thermostat valve being configured to open and close the flow of the cooling circuit through the heat exchanger. 9. The system according to claim 5, wherein said second temperature sensor is mounted on the heat exchanger in connection with cooling flanges in the heat exchanger. 10. The system according to claim 1, said detecting means further comprising a first sensor configured to measure the content of the one or more environmentally harmful substances downstream from the heat exchanger. 11. The system according to claim 10, said motor vehicle further comprising means for deflecting the air flow passing through said heat exchanger, said first sensor being arranged to be exposed partly to a first air flow which has passed the heat exchanger wherein a third output signal is generated, and exposed partly to a second air flow which has not passed through the heat exchanger, wherein a fourth output signal is generated, wherein said control unit is configured to estimate the degree of conversion based on said third and fourth output signals. 12. The system according to claim 11, said deflecting means further comprising an air channel which directs air to by-pass through the heat exchanger. 13. The system according to claim 11, said deflecting means further comprising a means for reversing a fan, said fan being coupled with the heat exchanger, wherein said reversing means allows said first sensor to be exposed partly to a first air flow which has passed the heat exchanger, and partly to a second air flow which has not passed the heat exchanger. 14. The system according to claim 10, said detecting means further comprising a second sensor configured to measure content of the one or more environmentally harmful substances upstream from the heat exchanger, wherein said control unit is configured to determine the degree of conversion based on output signals from said first and second sensors. 15. The system according to claim 14, wherein said engine is a combustion engine having an air inlet, said second sensor being located in an air channel connected to said air via a valve inlet in way possible to close said valve. 16. The system according to claim 10, further comprising means for generating a predetermined concentration of one or more environmentally harmful substances, wherein said means are arranged to expose the heat exchanger to a predetermined concentration of the one or more environmentally harmful substances upstream from the heat exchanger when determining the degree of conversion of the one or more environmentally harmful substances, and wherein said detecting means is configured to measure the concentration of the one or more environmentally harmful substances downstream from the heat exchanger. 17. The system according to claim 1, said detecting means further comprising a pressure sensor providing a first output signal dependent on static pressure downstream from the heat exchanger and on the air flow through the heat exchanger, wherein said control unit is configured to determine a degree of conversion based on said first output signal. 18. The system according to claim 1, said detecting means further comprising a differential pressure sensor providing a first output signal dependent on a pressure drop across the heat exchanging unit and on the air flow through the heat exchanger, wherein said control unit is configured to determine a degree of conversion based on said first output signal. 19. The system according to claim 1, wherein said detecting means comprises a flow sensor providing a first output signal dependent on the air flow through the heat exchanger, wherein said control unit is configured to determine a degree of conversion based on said first output signal. 20. The system according to claim 7, wherein said detecting means comprises a test cell coated with a catalytic coating exhibiting electrical or optical properties which change with wear and/or fouling; and wherein said control unit is configured to determine the degree of conversion of the heat exchanger with the catalytic coating from an output signal generated by said test cell. 21. The system according to claim 20, said test cell further comprising one or more wires having electrical properties changing in relation to degradation of the catalytic coating. 22. The system according to claim 21, wherein said one or more wires are sensitive to corrosion and insulated, wherein insulation on the one or more wires falls off at the same rate as the catalytic coating degrades, and wherein the wires corrode changing the electrical properties of the wires or opening the circuit. 23. The system according to claim 21, said test cell further comprising means for heating the wires, wherein degradation of the catalytic material and the degree of conversion is estimated by means of heating the wires with a current pulse after which a cooling course is determined based on the thermal conductivity of a surface, thereby providing a correlating degradation of the catalytic coating. 24. The system according to claim 20, said test cell further comprising a photocell mounted beneath a transparent carrier coated with a catalytic coating, wherein said test cell is arranged to generate an output signal dependent on optical absorbance or reflectance of the test cell and thereby correlating with the degradation of the catalytic coating. 25. The system according to claim 24, said test cell further comprising a second photocell mounted beneath a second transparent carrier without catalytic coating, wherein said test cell is arranged to generate a second output signal dependent on differences in absorbance or reflectance between the two transparent carriers, wherein said second output signal is used in determining degradation of the catalytic coating. 26. The system according to claim 24, said detecting means further comprising a light source illuminating the test cell when determining absorbance or reflectance, wherein a light intensity which is well-defined for the determination of absorbance or reflectance is obtained. 27. The system according to claim 20, said detecting means further comprising a photocell mounted in such a way that said photocell receives light emitted via fluorescence or phosphorescence from the catalytic coating, wherein a first output signal is created dependent on an optical absorbance or reflectance of the test cell and thereby correlating with the degradation of the catalytic coating. 28. The system according to claim 27, said detecting means further comprising a light source illuminating the test cell, wherein emitted light from the catalytic coating is generated. 29. The system according to claim 27, said detecting means further compr ising a second photocell which is mounted in such a way that said second photocell receives light emitted from a surface which is not coated with fluorescent material, wherein a second output signal is generated which is utilized as a reference for the first output signal from the surface which is coated with a catalytic coating having fluorescence, wherein the difference between light received in the first and second photocell is utilized in order to determine the degradation of the catalytic coating. 30. A motor vehicle system for determining the effectiveness of a catalytic coating, the motor vehicle system comprising: an engine with a cooling circuit connected thereto, said cooling circuit having a heat exchanger that is at least externally coated with a catalytic material for conversion of environmentally harmful substances; a control unit; and a sensor connected to said control unit, wherein said control unit is able to determine a degree of conversion of one or more environmentally harmful substances by said catalytic coating of said heat exchanger. 31. The system according to claim 1, wherein said control unit is configured to detect a concentration of said one or more environmentally harmful substances before conversion of the one or more environmentally harmful substances into substances which are not harmful to the environment.