Abstract:
A probe for an IR or UV sensor comprising a light emitter and detector is described comprising a lens. The detector detects the spectrums of the emitted light after it has passed a gas to be measured. The sensor of the present invention is especially suitable for such as harsh or aggressive environments measuring the exhaust gasses, for example in ships, vehicles, chimneys etc., and comprises purge gas protections for delicate optical parts to prevent particles etc. from the exhaust gas depositing on the optics. The sensor further has a flow of sample gas from the gas to be measured being adapted to prevent the purge gas from inferring with the measurements.
Abstract:
The invention relates to a sensor having a filter arrangement, downstream of which there is arranged a detector arrangement, and an evaluating device which is connected to the detector arrangement, the filter arrangement has at least a first filter, the suspect filter, which is configured as a band pass filter allowing the passage of a first predetermined band, the suspect band, at least one second filter, the reference filter(s), which is configured as band pass filters allowing the passage of a second predetermined band(s), the reference band(s), and where the detector arrangement has at least one detector associated with the at least one of the filters. The sensor uses the band pass filters to measure the temperature of an emitting source. The sensor with advantage could be utilized within the IR band, and could advantageously be used to detect CO 2 .
Abstract:
The present invention relates to gas sensors able to measure gas based on the absorption bands of radiation characteristic to the gas of interest, where the sensor comprises a gas measurement region. The present invention introduces the gas sensors configured and designed such, that a plural of gas sensors may be connected to form a self contained modular unit such forming a sensor construction able to measure e.g. a number of different gasses or just make a more precise measurement of one particular gas.
Abstract:
Gas sensor enable to measure gas based on the absorption bands of radiation characteristic to the gas of interest, where the sensor is able to measure gases of temperatures usually too high for the delicate parts of the sensor to endure. The present invention introduces a cooling device connected to the sensor for ensuring a lowered temperature in the vicinity of the delicate parts.
Abstract:
The invention relates to a sensor having a filter arrangement, downstream of which there is arranged a detector arrangement, and an evaluating device which is connected to the detector arrangement. However, since particles or substances in general present in the environment where the sensor operates, as these over time gets into contact with more delicate parts of the sensor, decreasing the time of operation of the sensor, before maintenances or even exchange is needed. It is therefore often desired to keep the more delicate parts of the sensor physically separated from the media or environment containing the substances or species being measured by the sensor. The present invention solves this problem by introducing sight glasses positioned at least in front of the delicate parts of the sensor, the sight glasses in general being formed with coating(s) chosen according to the environment wherein the sight glasses are to be used.
Abstract:
A probe for an IR or UV sensor comprising a light emitter and detector is described comprising a lens (2). The detector detects the spectrums of the emitted light after it has passed a gas to be measured (6). The sensor of the present invention is especially suitable for such as harsh or aggressive environments measuring the exhaust gasses, for example in ships, vehicles, chimneys etc., and comprises purge gas protections for delicate optical parts to prevent particles etc. from the exhaust gas depositing on the optics. The sensor further has a flow of sample gas from the gas to be measured being adapted to prevent the purge gas (7) from interfering with the measurements where the sample gas is split into at least two flows (6a, 6b, 6c) where one (6c) is adapted for preventing the purge gas from influencing the measurement in a measuring region (5).
Abstract:
The invention relates to a gas sensor comprising a gas measurement region such designed that the flow of gas in the region intrinsically serves to keep specific internal surfaces free of residues, e.g. soot particles. To this purpose means are introduced ensuring a non-direct path of the gas in its flow from one end of the measurement region to the other, such as by transferring it into a vortex letting the gas whirl from one end of the measurement chamber to the other, by forming a turbulent flow of the gas, etc..
Abstract:
The invention relates to a sensor having a filter arrangement, downstream of which there is arranged a detector arrangement, and an evaluating device which is connected to the detector arrangement, the filter arrangement has at least a first filter, the suspect filter, which is configured as a band pass filter allowing the passage of a first predetermined band, the suspect band (58), at least one second filter, the reference filter(s), which is configured as a band pass filter allowing the passage of a second predetermined band(s), the reference band(s) (RBl and RB2), and where the detector arrangement has at least one detector associated with at least one of the filters. The band passes reference filters are distributed above and below the band pass of the suspect filter. The sensor with advantage could be utilized within the IR band, and could advantageously be used to detect CO.
Abstract:
A probe for an IR or UV sensor comprising a light emitter and detector is described comprising a lens. The detector detects the spectrums of the emitted light after it has passed a gas to be measured. The sensor of the present invention is especially suitable for such as harsh or aggressive environments measuring the exhaust gasses, for example in ships, vehicles, chimneys etc., and comprises purge gas protections for delicate optical parts to prevent particles etc. from the exhaust gas depositing on the optics. The sensor further has a flow of sample gas from the gas to be measured being adapted to prevent the purge gas from inferring with the measurements where the sample gas are split into at least two flows where one is adapted for preventing the purge gas from influencing the measurement in a measuring region.
Abstract:
The invention relates to control of the ventilation in vessel cargo holds carrying e.g. reefer containers. The purpose of the invention is to optimize the overall energy consumption related thereto, i.e. minimizing the total energy consumed by the cargo hold ventilation and cargo carrying units, in particular but not limited to reefer containers, in the ventilated cargo hold or holds. The invention continuously or with intervals measures a number of physical parameters, e.g. temperatures, related to the cargo hold or holds and to the ambient conditions, and utilizes the measurement results to establish one or more control signals to directly or indirectly control the ventilation of the cargo hold or holds in such way that the total energy consumption of the ventilation and the cargo carrying units is dynamically minimized as conditions change.