WO2012053193A1 - 水質監視装置 - Google Patents
水質監視装置 Download PDFInfo
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- WO2012053193A1 WO2012053193A1 PCT/JP2011/005821 JP2011005821W WO2012053193A1 WO 2012053193 A1 WO2012053193 A1 WO 2012053193A1 JP 2011005821 W JP2011005821 W JP 2011005821W WO 2012053193 A1 WO2012053193 A1 WO 2012053193A1
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- water quality
- quality monitoring
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- G—PHYSICS
- G08—SIGNALLING
- G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
- G08B21/00—Alarms responsive to a single specified undesired or abnormal condition and not otherwise provided for
- G08B21/18—Status alarms
- G08B21/182—Level alarms, e.g. alarms responsive to variables exceeding a threshold
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- 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
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N33/00—Investigating or analysing materials by specific methods not covered by groups G01N1/00 - G01N31/00
- G01N33/18—Water
Definitions
- the present invention relates to an apparatus for monitoring water quality.
- Japanese Laid-Open Patent Publication No. 2004-74137 describes providing a drinking water supply method and system for monitoring with aquatic organisms.
- This document is equipped with a bioassay system based on aquatic organisms used for monitoring and determining harmful substances such as acute toxicants in the processing or distribution route from raw water to drinking water. It is described that a single supply or a combined supply with sewable water that can be shared is used, and that only the sewage is automatically supplied as an independent supply when it cannot be determined by the system.
- only safe water is selected through a safety confirmation storage tank corresponding to an emergency situation provided in the landing channel and / or treatment channel except for the upper water channel such as city water. Transport while.
- Patent Document 2 discloses two types of an atmospheric pressure ion source (non-dissociative atmospheric pressure ion source) that mainly generates molecular weight-related ions and an atmospheric pressure ion source (dissociative atmospheric pressure ion source) that mainly generates dissociated ions. It is described that a kind of atmospheric pressure ion source is equipped in an ion mobility spectrometer to provide a switching mechanism between a non-dissociative ion source and a dissociative ion source.
- a database that registers the characteristic values (ion mobility or values correlated with it) of molecular weight-related ions generated by a non-dissociative ion source and dissociated ions generated by a dissociative ion source for each substance to be measured is provided. Is described. When ions matching the database are detected in both the non-dissociative ion source and the dissociative ion source, it is determined that the measurement target substance has been detected. At this time, reliability is improved by investigating the presence / absence of dissociated ions during the operation of the non-dissociative ion source and conversely checking the presence / absence of molecular weight related ions during the operation of the dissociative ion source. To do.
- Tanks or tanks for storing drinking water are distributed in various places such as water towers and rooftops of buildings in each region. Each of these aquariums may be contaminated by some circumstances or factors, or the water quality may deteriorate. Therefore, there is a demand for a system that can easily monitor the water quality of individual tanks.
- One aspect of the present invention is an air quality analysis unit that detects, with an ion mobility sensor, an air quality in an area at least partially closed by a boundary surface with a target water to be monitored and a partition wall, and an air quality analysis unit If the air quality pattern obtained by the above is out of the allowable range for the air quality pattern of the air in contact with the target water, the water quality monitoring device has an alarm unit that outputs an abnormal signal.
- the air (atmosphere) in a region having a boundary surface with water there is a substance that reflects the boundary surface, that is, the water quality below the water surface. Furthermore, substances originating from water below the water surface accumulate in a substantially closed area on the water surface. Substances resulting from water include those in which substances contained in water are vaporized, those released from water into the air, and gas generated by some factor in water.
- the ion mobility sensor ionizes molecules in the air and outputs a spectrum based on the mobility of the ionized molecules. For this reason, in this water quality monitoring device, the air quality in the substantially closed area that is in contact with the water is detected by the ion mobility sensor, resulting in the water contained in the air quality in the closed area. Substances (components) can be measured, and the quality of the water below the surface of the water can be indirectly determined from the measurement results with sufficient accuracy.
- Another aspect of the present invention is a water quality monitoring method including the following steps. 1. Detecting air quality in an ion mobility sensor at the boundary surface with water to be monitored and at least partially closed by a partition wall. 2. If the output pattern of the ion mobility sensor is outside the allowable range for the air quality pattern of the air in contact with the target water, an abnormal signal is output.
- summary of the drinking water supply apparatus which has a water quality monitoring apparatus.
- FIG. 1 shows a state in which a water quality monitoring device is attached to a water tank installed on the roof of a building.
- FIG. 2 shows a schematic configuration of the water quality monitoring apparatus 10.
- This water quality monitoring device 10 uses an ion mobility sensor 12 to determine the air quality in a region 9 that is at least partially closed by a boundary surface (water surface) 3 with a target water 2 to be monitored for water quality and a wall of a water tank 1 serving as a partition wall. If the air quality pattern detected by the air quality analysis unit 31 and the air quality pattern obtained by the air quality analysis unit 31 are out of the allowable range for the air quality pattern of the air in contact with the water to be monitored, it indicates an abnormality. And an alarm unit 32 for outputting a signal.
- the water quality monitoring device 10 for analyzing the air (sampling air) 9a in the region 9 in contact with the boundary surface 3 with the water 2 detects (measures) a substance reflecting the water quality existing in the sampling air 9a, and determines the water surface from the measurement result.
- the water quality below can be determined indirectly, but with sufficient accuracy.
- the substance 4 resulting from the water 2 below the water surface is accumulated together with the moisture (water vapor) 2a.
- Substances (measuring substances) 4 in the air (sampling air) 9a in the region 9 caused by water are vaporized substances contained in water, for example, VOCs such as formaldehyde, diosmine causing mold odor, Examples include chlorine, carbon tetrachloride, trihalomethane, and other carbon compounds.
- the measurement target substance 4 further includes substances (molecules, compositions, compounds, etc.) released from water into the air, such as cadmium, arsenic, hexavalent chromium, cyanide compounds, and the like.
- the measurement target substance 4 further includes gas generated by some factor in water, for example, gas released from the activities of Escherichia coli and other bacteria and microorganisms (metabolic volatile substance), gas generated due to spoilage or fermentation. Etc. are included.
- the ion mobility sensor 12 ionizes the introduced gas, for example, molecules in the air, and outputs a spectrum based on the mobility of the ionized object. Therefore, the ionized substance contained in the air can be discriminated or estimated by analyzing the spectrum.
- the quality of the sampling air 9a air quality
- the ion mobility sensor 12 measures the quality of the sampling air 9a (air quality) containing substances in the air in a substantially closed region 9 that is in contact with water.
- the spectrum obtained is obtained.
- the measurement target substance 4 contained in the sampling air 9a is detected.
- the water quality monitoring device 10 analyzes the air quality pattern when the measurement target substance 4 indicating that the water 2 is contaminated is included in the sampling air 9a obtained from the region 9 on the water surface. Therefore, it is possible to determine an abnormality in water quality at an early stage.
- the water 2 to be monitored is drinking water in this example, but may be industrial water such as pure water or waste water (waste water). In most cases, there is a water quality standard for the target water 2. As a result of measuring the air quality of the air in contact with the water of the water quality corresponding to the acceptable water quality standard by the ion mobility sensor 12, that is, the air quality pattern is obtained in advance by experiment or preliminary measurement.
- the obtained air quality pattern matches the water quality standard.
- An abnormal signal can be output by comparing with the air quality pattern. Therefore, it is possible to provide the water quality monitoring device 10 with a simple configuration and high accuracy.
- the sampling air 9a in the region 9 includes substances other than substances caused by the water 2 below the water surface. For example, if a compound, fungus, spoilage or the like that may contaminate the water 2 is dropped into the region 9, the measurement target substance 4 resulting from them is included in the sampling air 9a. Therefore, by monitoring the sampling air 9a in the region 9 with the water quality monitoring device 10, the contamination of the water 2 can be monitored at an earlier stage.
- One method for improving the detection accuracy (analysis accuracy) in the water quality monitoring device 10 is to measure the substance 4 to be measured, that is, the ion mobility sensor 12 in the region 9 in contact with water (in the sampling air 9a). It is to increase the concentration of the target chemical substance (chemical component, molecule, composition, compound, etc.).
- the target water 2 may be aerated (bubbled) with a carrier gas (typically air) that supplies the sampling air 9a in the region 9 to the ion mobility sensor 12.
- the component to be measured may be vaporized by pervaporation (permeation vaporization method) using a hollow fiber filter or the like.
- the water quality monitoring device includes a vaporization unit that promotes vaporization of the water 2 to be monitored and a dehumidification unit that dehumidifies the air in the area and supplies the deionized air to the ion mobility sensor 12.
- a vaporization unit that promotes vaporization of the water 2 to be monitored
- a dehumidification unit that dehumidifies the air in the area and supplies the deionized air to the ion mobility sensor 12.
- the vaporization unit may include a unit that promotes vaporization by heat. If the target water 2 contains a substance that vaporizes at different temperatures or a substance whose concentration changes, the air quality pattern obtained by the ion mobility sensor 12 changes depending on the temperature at which the water 2 is vaporized. Therefore, the water quality can be determined by associating the water temperature information of the vaporization unit with the air quality pattern.
- the vaporizing unit may include an inkjet that drops water into droplets and an ultrasonic vibration that vaporizes (atomizes) water mechanically. It is also effective to vaporize water containing substantially no impurities. On the other hand, when impurities that clog are included, it is effective to vaporize mechanically by ultrasonic vibration or the like.
- the vaporization unit may include a porous boundary wall that forms a boundary surface.
- a boundary wall of porous ceramic, porous glass, or porous membrane can be employed.
- the sampling air 9a having a high concentration of moisture 2a together with the measurement target component 4 is supplied to the ion mobility sensor 12 through a dehumidifying unit. Since the air quality in the region is saturated or close to moisture, dehumidification is performed using a method that makes it difficult for other components to be adsorbed, so that the influence of the moisture spectrum on the air quality pattern can be suppressed, enabling more accurate monitoring. It becomes. For example, if the moisture peak becomes too large, the peak of the measurement target component may be hidden or difficult to detect. There is also an advantage that the ion mobility sensor 12 can be purged with dehumidified air.
- the dehumidifying unit may be an absorptive one such as silica gel or molecular sieve, but consumes time and energy for regeneration.
- the dehumidifying unit may be one that lowers the relative humidity by heating or removes moisture by cooling with a Peltier element or the like.
- the dehumidifying unit may include a hygroscopic boundary wall, for example, a hygroscopic film such as DuPont's Nafion®. Dehumidification can be continuously performed by interposing a hygroscopic film between the sampling air 9a having a lot of water and the dry air.
- a unit for bubbling the water 2 by exhausting the ion mobility sensor 12 may be provided.
- the content in the sampling air 9a of components that affect the water quality at a low concentration can be improved, and more accurate monitoring is possible.
- the water quality monitoring device includes a reaction unit that samples the water 2 and supplies the product gas reacted with the reagent to the ion mobility sensor 12.
- the water quality monitoring device includes a sampling unit that samples a plurality of different depths of water to form a plurality of regions 9. It is possible to monitor not only the surface water quality but also the water quality at deep levels.
- An example of a water quality monitoring device monitors the water quality in the aquarium as shown below.
- the water quality monitoring device By installing the water quality monitoring device at an appropriate location inside the water tank, it is possible to monitor not only the stored water quality but also the environment inside the water tank (tank).
- a transmission unit that transmits the output of the alarm unit to the manager (organization to be managed) of the aquarium. Administrators can automatically monitor tanks at various locations.
- the water quality monitoring device is to monitor the water quality while floating on the water.
- the one that floats on the water may be fixed in position with a buoy or the like, or it may be one that monitors the water quality while moving on a predetermined course by an autonomous movement mechanism such as a screw or an external movement mechanism Good.
- the moving water quality monitoring device includes a unit for measuring a position such as GPS, and transmits the water quality and the position in association with each other to the manager.
- the alarm unit 32 can output a caution signal if the air quality pattern obtained by the air quality analysis unit 31 is within a range that is acceptable as an air quality pattern on the water surface but is not in a normal range. As a result, it is possible to monitor the stage before the water quality becomes abnormal.
- the alarm unit 32 may include a unit that changes the allowable range according to the output of a sensor that measures environmental conditions in the region, such as temperature and humidity.
- the sensitivity of the ion mobility sensor 12 may be affected by environmental conditions in the region such as temperature and humidity. Therefore, monitoring with higher accuracy is possible by taking into consideration the environmental conditions in the region.
- This water quality monitoring device desirably further includes a unit for floating the water quality monitoring device on the water surface.
- the trouble of installing the water quality monitoring device can be saved.
- the change in the distance from the water surface to the ion mobility sensor can be suppressed, water quality can be monitored with higher accuracy.
- FIG. 1 shows an outline of a drinking water supply device 60 installed on the roof of a building.
- the drinking water supply device 60 includes a water tank 1 (tank, water tank, water storage tank) for storing drinking water 2.
- the water tank 1 includes a bottom 1a serving as a partition wall, a side wall 1b, and a ceiling 1c.
- the supply device 60 is further attached to a pipe (supply pipe) 5 for supplying water to the water storage tank 1, a pipe (water supply pipe) 6 for supplying water from the water storage tank 1 to the user, and a water supply pipe 6 for drinking water. 2 and an emergency shutoff valve 7 for stopping the supply of 2.
- the supply device 60 includes the water quality monitoring device 10, and the water quality monitoring device 10 is disposed in an area (space) 9 surrounded by the water surface 3, the side wall 1 b, and the ceiling 1 c inside the water tank 1.
- the water quality monitoring device 10 is attached above the overflow level of the side wall 1b of the water tank 1 or on the ceiling 1c.
- a region 9 inside the water tank 1 to which the water quality monitoring device 10 is attached is a space closed by the water surface 3 that is a boundary surface with the drinking water 2, the side wall 1b, and the ceiling 1c, and overflow (not shown). Although there is a portion that can be opened or opened to the outside such as the inspection port 1d, the region 9 is a substantially closed space.
- the supply device 60 further includes a solar cell 21 for power supply installed outside the water tank 1 and an antenna 23 for communication, and these are connected to the water quality monitoring device 10.
- the water quality monitoring device 10 includes an interface for operating the emergency shutoff valve 7 and shuts off the water supply pipe 6 when the water quality monitoring device 10 detects an abnormality.
- the water quality monitoring device 10 includes a port 19 for sucking air from the area 9 inside the water tank 1, a temperature sensor 18 for detecting the temperature of the area 9, and a humidity sensor 17 for detecting humidity.
- the temperature sensor 18 and the humidity sensor 17 may be built in the water quality monitoring device 10 or may be installed at any location in the region 9.
- FIG. 2 is a block diagram showing a schematic configuration of the water quality monitoring device 10.
- the water quality monitoring device 10 includes a pump (fan, blower) 11 that sucks air (sampling air) 9a from an area 9 inside the water tank 1, and an ion mobility that detects the quality (air quality) of the sucked sampling air 9a. It includes a sensor 12 and a control unit 30 that drives the ion mobility sensor 12, analyzes the detection result of the ion mobility sensor 12, and performs a preset process based on the analysis result.
- the ion mobility sensor ion mobility spectrometer, ion mobility spectrometer 12
- ion mobility spectrometer 12 ionizes substances (molecules) in the air, and the spectrum (output pattern, air quality pattern) based on the difference in mobility of the ionized molecules. It is a sensor that outputs.
- the water quality monitoring apparatus 10 includes an ion mobility sensor 12 called an asymmetric field ion mobility spectrometer (FAIMS) or a differential electric mobility spectrometer (DMS).
- FIMS asymmetric field ion mobility spectrometer
- DMS differential electric mobility spectrometer
- the differential voltage (AC voltage, electric field voltage Vrf, hereinafter Vf) for controlling the electric field and the compensation voltage (DC voltage, hereinafter Vc) are changed to alternate between the high electric field and the low electric field asymmetrically. Switch to.
- the non-target chemical substance collides with the electrode (plate) that generates an electric field during the flight, and the + ions or ⁇ ions lose their charge and are not detected.
- the ionized chemical substance as the detection target can reach the detector and collide with the detector if the conditions of the voltage Vf and the voltage Vc are appropriately controlled.
- the control unit 30 is realized by a computer including a CPU and a memory, a system LSI, an ASIC, and the like.
- the control unit 30 includes a driver (air quality analysis unit) 31 that drives the DMS 12 under conditions suitable for detecting the air quality in the closed area 9, an alarm unit 32 that outputs an abnormal signal, and an alarm unit 32.
- the alarm unit 32 must be within a range where the air quality pattern 41 obtained by the air quality analysis unit 31 is allowed as the air quality pattern of the region 9 above the water surface 3, that is, the air quality pattern of the air in contact with the water surface 3. Output an abnormal signal.
- the transmission unit 39 transmits the output of the alarm unit 32 to the manager of the drinking water supply device 60 via the antenna 23, for example, a water tank supply company or a water tank management company.
- the memory 40 includes a database that stores a pattern 45 to be compared with the air quality pattern 41 obtained by the air quality analysis unit 31.
- the functions as the air quality analysis unit 31, the alarm unit 32, and the transmission unit 39 are supplied as a program (program product) and stored in the memory 40, for example.
- a processor such as a CPU of the control unit 30 appropriately downloads a program to realize a predetermined function.
- the transmission unit 39 is not limited to wireless communication, and may be one that can communicate with outside such as a building or a management company by wire. In addition, communication may be performed using a communication system such as a mobile phone network or a wireless LAN. Further, the transmission unit 39 may be a transmission / reception unit, and may be used for remotely monitoring the water quality monitoring device 10 or updating a comparison pattern stored in the database of the memory 40.
- the alarm unit 32 is obtained with the first function 33 that outputs an abnormal signal (red signal) if the obtained air quality pattern 41 is not within the allowable range for the air quality pattern on the water surface 3.
- the second function 34 for outputting a caution signal (yellow signal) if the air quality pattern 41 is within the normal range even if the air quality pattern 41 is allowed as the air quality pattern in contact with the water surface 3.
- a function 35 for performing processing such as operating the emergency shut-off valve 7 and a function for selecting or correcting a pattern 45 to be compared with the air quality pattern 41 obtained by the temperature and humidity of the region 9 on the water surface 3 36.
- the memory (database) 40 includes a normal air quality pattern 46 obtained in a state where normal (normal) air is in contact with a surface of water quality suitable for drinking water, and drinking is possible but optimal.
- Careful air quality pattern 47 that can be obtained when air is in contact with the surface of water that cannot be said, and abnormalities (dangerous that are obtained when air is in contact with the surface of water that cannot be drunk) Air quality pattern 48.
- the air quality pattern 47 requiring attention includes an air quality pattern that adversely affects water quality
- the abnormal air quality pattern 48 includes an air quality pattern that deteriorates or makes the quality of drinking water worse.
- the normal air quality pattern 46 includes an air quality pattern containing an evaporation component from drinking water containing moderate chlorine and the like.
- the air quality pattern 47 that requires attention is a component that shows deterioration of water quality, such as 2-methylisoborneol, diosmin, and volatile organic compounds (VOC), which cause mold odor.
- the air quality pattern containing the known evaporation component which cannot be said is included.
- an air quality pattern containing a high concentration of the above-mentioned components that deteriorate the water quality dangerous materials such as explosives such as dimethyl, dinitrobutane, which are related compounds of C-4, RDX related compounds such as cyclohexane, TNT related compounds such as DNT, dinitrobenzene, etc.
- explosives such as dimethyl, dinitrobutane, which are related compounds of C-4, RDX related compounds such as cyclohexane, TNT related compounds such as DNT, dinitrobenzene, etc.
- mustard related compounds such as dibutyl sulfide, 2-chloroethyl, sarin related compounds such as diisopropyl and methylphosphonate
- An air quality pattern is included. There is always a threat of attack by explosives, chemicals and / or biological matter. Therefore, it is desirable that an abnormal signal can be reliably output for known threats among these threats.
- the abnormal air quality pattern 48 includes an air quality pattern including components that cause rot odor such as methane and ethane released from the septic.
- rot odor such as methane and ethane released from the septic.
- animals and plants are mixed in the aquarium 1 for some reason, breed, and the carcass may rot. Such a situation is not preferable for maintaining the quality of drinking water. Therefore, when such an odor is contained in the region 9 of the water tank 1, it is desirable that an abnormal signal can be output.
- the abnormal air quality pattern 48 includes an air quality pattern including gas (metabolic volatile substance) released from the activities of bacteria and microorganisms.
- gas metabolic volatile substance
- the air quality pattern 41 in the region 9 above the water surface 3. Therefore, it is desirable that an abnormal signal can be reliably output.
- the DMS 12 ionizes ions that can be ionized in the air, and outputs an air quality pattern 41 including basically all information of the ionized molecules. Therefore, if the sampling air 9a contains the above-mentioned cautionary and abnormal (dangerous) molecules as the measurement target substance 4 and further unknown molecules, they are ionized and all of them are ionized. An air quality pattern 41 including information related to molecules is output. Further, the region 9 is substantially sealed (closed), and the evaporate from the water surface 3 stays in the region 9 and is concentrated. Therefore, if there are abnormal or sensitive factors in the water 2 and the region 9, the air quality pattern 41 obtained from the region 9 is different from the normal air quality pattern 46. Therefore, when the air quality pattern 41 is different from the normal air quality pattern 46, it is possible to monitor the water quality with high accuracy by making it necessary to be careful or abnormal.
- this water quality monitoring device 10 by obtaining the air quality pattern 41 of the region 9 above the water surface 3, the water quality of the water 2 stored in the aquarium 1 can be detected indirectly, but with high accuracy, Abnormality can be output. Further, the water quality of the aquarium 1 can be monitored with higher accuracy by correcting the pattern 45 to be compared according to environmental conditions such as the temperature and humidity of the region 9 and selecting a pattern suitable for the environmental condition from the database 40.
- Various patterns can be applied to the pattern matching algorithm and the pattern recognition algorithm between the air quality pattern 41 obtained from the DMS 12 and the pattern prepared in the database 40.
- this water quality monitoring device 10 it is first determined whether the water quality is in a normal range, and the other is determined as abnormal and / or cautionary. For this reason, the water quality monitoring device 10 does not identify each component included in the air quality pattern 41 obtained by the DMS 12. Therefore, processing for identifying each component such as template matching, neural network, statistical analysis, and genetic algorithm is unnecessary, and water quality can be monitored at high speed with a simple mechanism.
- the water quality monitoring apparatus 10 may include an analysis unit (analysis function) that identifies a measurement target component using a genetic algorithm or the like.
- the analysis unit can identify each component included in the air quality pattern 41 obtained by the DMS 12, and can specifically determine the threat.
- FIG. 3 is a flowchart showing an outline of processing in the water quality monitoring apparatus 10.
- step 51 the sampling air 9a in the closed region 9 on the water surface 3 is measured by the DMS 12, and the air quality pattern 41 of the sampling air 9a is obtained.
- step 52 the alarm unit 32 corrects one of the air quality patterns 46 to 48 in which the obtained air quality pattern 41 is prepared in the database 40 in advance, or the air quality patterns 46 to 48 by temperature and humidity. It is determined whether it corresponds to or matches any of the patterns. If it does not correspond to any of the patterns, the alarm unit 32 performs an abnormality process on the assumption that there is an abnormality in the water quality in step 55 or an abnormality in the water tank 1.
- the abnormality process includes wirelessly transmitting an abnormality signal (red signal) to the management company via the RF unit 39 and closing the emergency shutoff valve 7.
- Determining whether the patterns correspond or match includes comparing the peak position, height, width, and peak shift included in the air quality pattern when the voltages Vf and Vc of the DMS 12 are changed. .
- determination is made in advance including changes in the air quality pattern caused by changing the concentration of the measurement target component in the sampling air 9a or controlling the temperature and humidity. Comparing with air quality patterns 46-48.
- step 53 when the obtained air quality pattern 41 corresponds to or matches a normal air quality pattern 46 prepared in advance in the database 40 or a pattern obtained by correcting the air quality pattern 46 by temperature and humidity, the alarm unit 32 Returns to step 51 and continues water quality monitoring.
- step 54 when the obtained air quality pattern 41 corresponds to or matches the cautionary air quality pattern 47 prepared in advance in the database 40 or a pattern obtained by correcting the cautionary air quality pattern 47 by temperature and humidity.
- the alarm unit 32 performs attention processing in step 56.
- the attention processing includes wirelessly transmitting a warning signal (yellow signal) to the management company via the RF unit 39.
- step 54 if the obtained air quality pattern 41 corresponds to or matches the abnormal air quality pattern 48 prepared in advance in the database 40 or a pattern obtained by correcting the abnormal air quality pattern 48 with temperature and humidity, an alarm is generated.
- the unit 32 performs abnormality processing in step 55.
- FIG. 4 shows a drinking water supply device 60 in which a different water quality monitoring device 10 a is installed in the water tank 1.
- FIG. 5 is a block diagram showing a schematic configuration of the water quality monitoring apparatus 10a.
- the supply device 60 includes a sampling pipe 15 that samples water from an appropriate depth of the drinking water 2 below the water surface 3 and supplies the sampled water to the water quality monitoring device 10a.
- the water quality monitoring device 10 a forcibly vaporizes the sampled water 2 through the sampling pipe 15 and the pump 61 that samples the water 2 and supplies the sampled water 2 to the DMS 12.
- the unit 68 and valves 69a to 69d for selecting the air supplied to the DMS 12 are included.
- symbol is attached
- the vaporizing unit 63 forcibly vaporizes the water 2 to contain (mix) the sampling air 9a that supplies the DMS 12 with low-concentration impurities or gas contained in the water 2. Thereby, the influence of the water quality in the air quality pattern 41 obtained by DMS12 can be increased.
- the purge and trap method is known as a method for concentrating volatile components in water.
- sampled water is bubbled with an inert gas to collect volatile components in a trap tube. Thereafter, the trap tube is heated to release the adsorbed components, thereby concentrating the volatile components contained in the sampled water.
- An example of the vaporizing unit 63 is a unit that bubbles the sampled water 2 with an appropriate gas, for example, the sampling air 9 a sucked from the region 9 instead of the inert gas. By bubbling, the concentration of the measurement target component 4 in the sampling air 9 a can be increased, and the component of the water 2 can be reflected more efficiently in the sampling air 9 a supplied to the DMS 12. Therefore, the water quality can be judged more accurately.
- An air quality pattern when the vaporizing unit 63 is operated may be prepared in the database 40 in advance, and the air quality pattern may be compared with the air quality pattern 41 obtained from the DMS 12.
- vaporization unit 63 is a unit that atomizes the sampled water 2 by applying ultrasonic vibration. Without adding heat to the water 2 or adding other gases, the components of the water 2 can be gasified or atomized and mixed into the air supplied to the DMS 12. The DMS 12 can detect the components of the water 2 more accurately. Can be made.
- the vaporizing unit 63 is a unit that heats and evaporates the sampled water 2.
- the heated evaporant of the water 2 can be mixed into the air supplied to the DMS 12, and the component of the water 2 can be detected more accurately by the DMS 12. It is also possible to continue heating after the water 2 evaporates to evaporate the evaporation residue of the water 2 or oxidize and evaporate the evaporation residue (evaporation residue). Therefore, those vaporized substances or oxides can be mixed into the air supplied to the DMS 12 from the vaporizing unit 63, and the components contained in the water 2 can be detected with higher accuracy by the DMS 12.
- the reaction unit 65 reacts with the components mixed in the water 2 by injecting a controlled amount and concentration of the reagents 66 and / or 67 into the water 2, and the generated gas is converted into the air supplied to the DMS 12. Mix. By comparing the pattern including the components, concentrations and amounts of the reagents 66 and 67 and / or products (product gas), which are known in advance, with the air quality pattern 41 obtained from the DMS 12, the water quality of the water 2 is determined. Judge more accurately. When the water 2 is not drinking water but waste water or the like and is strong acid or strong alkali water, neutralize it with an appropriate reagent so that the evaporate from the neutralized water 2 is detected by the DMS 12. May be. The water 2 reacted with the reagent by the reaction unit 65 may be supplied to the vaporization unit 63 and forcibly vaporized, and then supplied to the DMS 12.
- the dehumidifying unit 68 dehumidifies the sampling air 9a sucked from the area 9 above the water surface 3 and supplies it to the DMS 12.
- a trace component contained in the sampling air 9a may be adsorbed together with the moisture 2a. Therefore, it is desirable that the dehumidifying unit 68 is a non-adsorption type.
- An example of the non-adsorption method is to heat the air with a heater to lower the relative humidity.
- Another example of a simple non-adsorption method is a method of obtaining a certain degree of dryness by cooling air with a Peltier element to dehumidify, and then heating with a heater.
- the sampling air 9a contains the measurement target component 4 whose peak overlaps with the moisture 2a in the air quality pattern by dehumidifying the sampling air 9a in the region 9 above the water surface 3 and supplying it to the DMS 12.
- the possibility that the target component 4 can be separated increases.
- the water quality can be judged more accurately from the drift of the peak included in the air quality pattern 41 due to the difference in humidity, or the measurement target included in the water 2 or the sampling air 9a
- Auxiliary information for identifying component 4 can be obtained.
- dehumidified air it is possible to periodically purge the DMS 12 to obtain stable performance over a long period of time.
- the alarm unit 32 of the water quality monitoring device 10a uses the operating state of the vaporizing unit 63, the reaction unit 65, and the dehumidifying unit 68 described above and the output (gas, gas) of these units 63, 65, and 68 to the air supplied to the DMS 12.
- a mode control unit 38 for controlling whether or not to mix is included.
- the mode control unit 38 further includes a function of selecting a pattern to be compared with the air quality pattern 41 measured by the DMS 12 from the database 40.
- the air quality (gas, gas) output from the vaporizing unit 63, the reaction unit 65, and the dehumidifying unit 68 or the air quality pattern 41 of the sampling air 9a mixed with them is the air quality of the sampling air 9a sucked directly from the region 9 Often different from the pattern. Therefore, it is effective to provide the database 40 with a pattern for comparison with the air quality pattern.
- Fig. 6 shows a different water quality monitoring device.
- the water quality monitoring device 70 is of a type that floats on the water surface 3.
- a floating ring (float) 71 for securing buoyancy for maintaining the entire water quality monitoring device 70 on the water, and a metal or plastic that covers the water surface 3.
- a partition wall (shell) 73 a partition wall (shell) 73.
- the water quality monitoring device 70 includes a monitoring unit 79 having the function of the water quality monitoring device 10 or 10a described above.
- the monitoring unit 79 is installed inside the shell 73 and sucks sampling air 9 a from the area 9 closed by the water surface 3 and the shell 73. Therefore, the water quality monitoring device 70 determines the water quality of the water 2 that is floating.
- this water quality monitoring device 70 is floating on the water surface 3, the distance from the water surface 3 to the suction port 19 can be kept substantially constant, and the suction port 19 can be brought close to the water surface 3 safely. For this reason, the quality of water quality can be judged in a shorter time.
- the water quality monitoring device 70 includes an evaporation unit 75 suspended below the water surface.
- the evaporation unit 75 forcibly evaporates the water 2 into the area (space) 9 inside the shell 73.
- a typical evaporation unit 75 is a heating element such as an ultrasonic vibrator or a heater.
- the evaporation unit 75 is maintained at a certain distance (depth) from the water surface 3. Therefore, the moisture 2a can be efficiently supplied to the region 9 and the measurement target substance 4 can be supplied to the inside of the shell 73, and the measurement target component 4 reflecting the water quality can be retained and concentrated in the region 9 inside the shell 73. .
- the water quality monitoring device 70 further includes a bubbling unit 76 suspended below the water surface. Outside air is supplied to the bubbling unit 76 by a blower or an air pump 77, and the air bubbled into the inner region 9 of the shell 73 is supplied. Sampling air 9 a is supplied from the internal region 9 to the DMS (ion mobility sensor) 12 of the monitoring unit 79.
- the ion mobility sensor 12 is required to constantly flow a certain amount of gas including a flow rate as a carrier gas that causes the measurement target component 4 to reach the sensor 12. Outside air may be simply introduced into the internal region 9. However, the concentration of the measurement target component in the inner region 9 may not be sufficiently high. By supplying the bubbled outside air to the internal region 9, the concentration of the measurement target component in the region 9 can be increased.
- this water quality monitoring device 70 is a type that floats on the water surface 3, it is possible to save the trouble of attaching it to the inner wall of the water tank 1. It is also possible to monitor the quality of the flowing water by connecting the water quality monitoring device 70 to the flowing water by connecting to an appropriate anchor. Therefore, it is also suitable for monitoring the water quality at the outlet of the wastewater treatment system or at the discharge destination.
- Fig. 7 shows a different water quality monitoring device.
- the water quality monitoring device 80 is of a type that moves on the water 2 and includes a hull 81 that moves the water quality monitoring device 80 on the water and an engine 82 for water movement.
- the water quality monitoring device 80 includes three water analysis units 83, three sampling pumps 84, a supply source 88 of dry air 88a, and a control unit 30.
- the control unit 30 has the same function as the control unit 30 of the water quality monitoring device 10 or 10a described above.
- the three water analysis units 83 include a common configuration, and each water analysis unit 83 collects and analyzes the water 2 having different depths by the respective sampling pumps 84.
- Each of the water analysis units 83 includes a vaporization unit 85 that vaporizes the collected water 2 to generate sampling air 9a, a gas supply unit 86 that supplies the carrier gas 9b to the vaporization unit 85, and dehumidification that dehumidifies the sampling air 9a.
- a unit 87 and a DMS (ion mobility sensor) 12 that measures a measurement target component contained in the dehumidified sampling air 9a are included.
- the gas supply unit 86 is supplied with dry air 88a that is fresh air and exhaust 12a of the DMS 12 that is return air.
- the gas supply unit 86 has a function of selecting the dry air 88a and the DMS exhaust 12a, and And the function of adjusting the mixing ratio of these gases.
- the sampling air 9a having a high concentration of the measurement target substance 4 can be generated, and the water quality can be monitored with high accuracy.
- fresh dry air 88a By supplying fresh dry air 88a to the vaporizing unit 85, real-time water quality monitoring becomes possible.
- the control unit 30 includes a function of controlling the switching and mixing ratio in the gas supply unit 86, and controls the component of the carrier gas supplied to the vaporization unit 85 according to a preset schedule, a result obtained by the water analysis unit 83, or the like. .
- the vaporization unit 85 includes a chamber 85a and a vaporization tube 85b having a porous peripheral wall (boundary wall) housed inside the chamber 85a.
- Water 2 collected by the sampling pump 84 is supplied to the vaporizing tube 85b, and the moisture 2a and the measurement target substance 4 contained in the water 2 are released into the region 9 inside the chamber 85a via the vaporizing tube 85b. Therefore, the surface of the vaporizing tube 85 b becomes the boundary surface 3 between the water 2 and the region 9.
- Examples of the vaporizing tube 85b are a porous glass tube, a porous ceramic tube, and a hollow fiber filter including a porous material having an appropriate pore size.
- the vaporization unit 85 includes a heater 85h that controls the temperature inside the chamber 85a or the temperature of the vaporization tube 85b, and a heater control unit 85i that controls the heater 85h.
- a heater 85h that controls the temperature inside the chamber 85a or the temperature of the vaporization tube 85b
- a heater control unit 85i that controls the heater 85h.
- the temperature at which the moisture 2a is formed and the measurement target component 4 is vaporized or released can be controlled.
- the vaporizing tube 85b is employed, a wide evaporation area can be formed in the chamber 85a having a small volume, and the area controlled by the heater 85h can be reduced. Therefore, it is easy to control the evaporation temperature (evaporation condition) in the vaporization unit 85.
- the component released from the water 2 may change, and the change in the component can be captured by the DMS 12.
- the water 2 may be continuously supplied to the vaporizing tube 85b by the sampling pump 84. Further, the water 2 is temporarily held in the vaporizing tube 85b, the evaporation conditions such as the evaporation temperature in the chamber 85a are changed with time, and the change of the measurement target component 4 released into the chamber 85a is measured by the DMS 12. May be.
- the water 2 that has passed through the vaporizing tube 85a is discharged, for example, in the stern direction so as not to affect the sampling of the water 2.
- the dehumidifying unit 87 for dehumidifying the sampling air 9a includes a chamber 87a to which dry air 88a is supplied, and a dehumidifying tube 87b installed inside the chamber 87a.
- the dehumidifying tube 87b includes a hygroscopic peripheral wall (boundary wall).
- dehumidifying tube 87b is a tube (pipe) made by Nafion (registered trademark) manufactured by DuPont.
- This tube can selectively remove the moisture 2a contained in the sampling air 9a, and the measurement target component 4 is removed together with the moisture 2a, thereby suppressing the concentration of the measurement target 4 in the sampling air 9a from being lowered. it can. Depending on the component, it may be removed together with the moisture 2a. Therefore, it is also effective to use a dehumidifying unit of another type such as a Peltier element and switch in a time division manner.
- the dehumidified sampling air 9a is supplied to the DMS 12, and the air quality pattern 41 of the sampling air 9a is obtained.
- the air quality pattern 41 of each water analysis unit 83 is supplied to the control unit 30 to determine the water quality at each water depth.
- the water quality monitoring device 80 includes a GPS unit 25 and can measure its own position. Therefore, the water quality monitoring device 80 transmits the position at which the water quality is monitored together with the water quality at each depth to a monitoring center or the like.
- the control unit 30 includes a function as a robot that monitors the water quality while moving on the lake surface or the sea surface according to a predetermined route based on the position measured by the GPS unit 25. For this reason, the water quality monitoring device 80 can monitor the water quality of a wide range of water areas such as lakes and bays. The water quality monitoring device 80 can monitor the water quality inside or around the aquaculture ginger.
- the ion mobility sensor 12 of the water quality monitoring device may be a sensor system in which other types of sensors or the same or different types of DMS are connected. For example, a combination with gas chromatography (GC) may be used.
- GC gas chromatography
- the ion mobility sensor 12 is not limited to DMS but may be other types of IMS, such as TOFIMS, FTIR, or a combination of these with DMS.
- the water quality monitoring device may be equipped with a sensor for detecting other water quality, for example, a pH monitor, a turbidimeter, a radiation measurement unit, and the like.
- the present invention has been described mainly using a water quality monitoring device for monitoring the quality of drinking water, but the water to be monitored is not limited to drinking water, but waste water, drainage, river water, sea water, Pure water, ultrapure water, or the like may be used.
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Abstract
Description
1.水質を監視する対象の水との境界面および隔壁により少なくとも部分的に閉鎖された領域の空気質をイオン移動度センサーにより検出すること。
2.イオン移動度センサーの出力パターンが前記対象の水に接する空気の空気質パターンとして許容される範囲外であれば異常信号を出力すること。
Claims (16)
- 水質を監視する対象の水との境界面および隔壁により少なくとも部分的に閉鎖された領域の空気質をイオン移動度センサーにより検出する空気質分析ユニットと、
前記空気質分析ユニットにより得られた空気質パターンが、前記対象の水に接する空気の空気質パターンとして許容される範囲外であれば異常であることを示す信号を出力するアラームユニットとを有する水質監視装置。 - 請求項1において、前記対象の水の気化を促進する気化ユニットと、
前記領域の空気を除湿して前記イオン移動度センサーに供給する除湿ユニットとをさらに有する、水質監視装置。 - 請求項2において、前記気化ユニットは、前記境界面を形成する多孔性の境界壁を備えている、水質監視装置。
- 請求項2または3において、前記除湿ユニットは、吸湿性の境界壁を備えている、水質監視装置。
- 請求項1ないし4のいずれかにおいて、前記イオン移動度センサーの排気を前記領域に戻す循環ユニットをさらに有する、水質監視装置。
- 請求項5において、前記循環ユニットは、前記排気により前記対象の水をバブリングするユニットを含む、水質監視装置。
- 請求項1ないし6のいずれかにおいて、前記対象の水を試薬と反応させた生成ガスを前記イオン移動度センサーに供給する反応ユニットをさらに有する、水質監視装置。
- 請求項1ないし7のいずれかにおいて、複数の異なる深さの水をサンプリングして複数の前記領域を形成するサンプリングユニットをさらに有する、水質監視装置。
- 請求項1ないし8のいずれかにおいて、前記領域は前記対象の水を貯留する水槽の内部である、水質監視装置。
- 請求項1ないし8のいずれかにおいて、当該水質監視装置を水上に浮遊させるユニットをさらに有する、水質監視装置。
- 請求項1ないし10のいずれかにおいて、前記対象の水の管理者に前記アラームユニットの出力を送信する送信ユニットをさらに有する、水質監視装置。
- 請求項11において、当該水質監視装置の位置を検出する測位ユニットをさらに有し、前記送信ユニットは当該水質監視装置の位置情報を含めて送信する、水質監視装置。
- 請求項1ないし12のいずれかにおいて、前記アラームユニットは、前記空気質分析ユニットにより得られた空気質パターンが前記対象の水に接する空気質パターンとして前記許容される範囲内で正常な範囲外であれば注意信号を出力する、水質監視装置。
- 請求項1ないし13のいずれかにおいて、前記アラームユニットは、前記領域内の環境条件を測定するセンサーの出力により前記許容される範囲を変えるユニットを含む、水質監視装置。
- 水質を監視する対象の水との境界面および隔壁により少なくとも部分的に閉鎖された領域の空気質をイオン移動度センサーにより検出することと、
前記イオン移動度センサーの出力パターンが前記対象の水に接する空気の空気質パターンとして許容される範囲外であれば異常信号を出力することとを有する水質監視方法。 - 請求項15において、前記出力パターンが前記対象の水に接する空気質パターンとして前記許容される範囲内で正常な範囲外であれば注意信号を出力することをさらに有する、水質監視方法。
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US13/880,133 US8981947B2 (en) | 2010-10-18 | 2011-10-18 | Water quality monitoring apparatus |
CN201180061029.5A CN103282769B (zh) | 2010-10-18 | 2011-10-18 | 水质监视装置 |
JP2012539599A JP5852001B2 (ja) | 2010-10-18 | 2011-10-18 | 水質監視装置 |
SG2013029566A SG189462A1 (en) | 2010-10-18 | 2011-10-18 | Water quality monitoring apparatus |
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Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2015004622A (ja) * | 2013-06-21 | 2015-01-08 | アトナープ株式会社 | 軽合金溶湯の品質を推定する方法および装置 |
EP2844994A4 (en) * | 2012-04-30 | 2015-12-16 | Baker Hughes Inc | METHOD FOR MONITORING AND TREATING INDUSTRIAL LIQUIDS |
JP2022537088A (ja) * | 2019-06-21 | 2022-08-24 | グリー エレクトリック アプライアンシーズ インク オブ ズーハイ | ホルムアルデヒド濃度の検出方法、装置及び空気清浄機 |
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Publication number | Priority date | Publication date | Assignee | Title |
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KR20130086496A (ko) * | 2012-01-25 | 2013-08-02 | 한국전자통신연구원 | 센서 데이터를 사용한 수질 센서 장애 제어 장치 및 방법 |
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Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH03258385A (ja) * | 1990-03-06 | 1991-11-18 | Inax Corp | 水質監視機構付き水槽及び水質管理システム |
JPH05142119A (ja) * | 1991-11-15 | 1993-06-08 | Ebara Infilco Co Ltd | 液体中の揮発性成分の分析方法及び分析キツト |
JP2000146947A (ja) * | 1998-11-06 | 2000-05-26 | Yokogawa Electric Corp | 水質管理システム |
JP2000292320A (ja) * | 1999-04-08 | 2000-10-20 | Mitsubishi Electric Corp | 環境水中の揮発性物質検知装置 |
JP2001083122A (ja) * | 1999-09-14 | 2001-03-30 | Nohmi Bosai Ltd | 大気中の微量有害物質の監視方法及びその監視装置 |
JP2009002815A (ja) * | 2007-06-22 | 2009-01-08 | Hitachi Ltd | イオンモビリティ分光計 |
Family Cites Families (13)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3990066A (en) * | 1974-10-25 | 1976-11-02 | Malmgren Arthur L | Water quality monitor |
US7157700B2 (en) * | 2001-06-30 | 2007-01-02 | Sionex Corporation | System for collection of data and identification of unknown ion species in an electric field |
AU2002250295A1 (en) * | 2001-03-16 | 2002-10-03 | Ewatertek Inc. | System and method for monitoring water quality and transmitting water quality data |
CA2452128A1 (en) * | 2001-06-30 | 2003-01-16 | Sionex Corporation | System for collection of data and identification of unknown ion species in an electric field |
DE10235612B4 (de) * | 2002-08-02 | 2012-06-21 | Siemens Aktiengesellschaft | Verfahren und Vorrichtung zur Überwachung der Qualität von Schmieröl |
US7470898B2 (en) * | 2003-04-01 | 2008-12-30 | The Charles Stark Draper Laboratory, Inc. | Monitoring drinking water quality using differential mobility spectrometry |
US7078680B1 (en) * | 2004-02-06 | 2006-07-18 | The United States Of America As Represented By The Secretary Of The Navy | Ion mobility spectrometer using ion beam modulation and wavelet decomposition |
US7100427B2 (en) * | 2004-05-07 | 2006-09-05 | Sensicore, Inc. | Multi-sensor system for fluid monitoring with selective exposure of sensors |
WO2006036929A1 (en) * | 2004-09-27 | 2006-04-06 | Source Sentinel, Llc | System for monitoring quality of water system |
US8190375B2 (en) | 2005-07-08 | 2012-05-29 | Metanomics Gmbh | System and method for characterizing a chemical sample |
US20070257684A1 (en) * | 2006-04-20 | 2007-11-08 | Eberhard Essich | Monitor for Evaluating Changes in Water Quality |
CN101562114B (zh) * | 2009-05-22 | 2011-04-20 | 公安部第三研究所 | 一种使用Hadamard变换方法的离子迁移谱仪 |
JPWO2011077731A1 (ja) * | 2009-12-22 | 2013-05-02 | アトナープ株式会社 | 化学物質を検出する装置 |
-
2011
- 2011-10-18 CN CN201180061029.5A patent/CN103282769B/zh not_active Expired - Fee Related
- 2011-10-18 JP JP2012539599A patent/JP5852001B2/ja not_active Expired - Fee Related
- 2011-10-18 WO PCT/JP2011/005821 patent/WO2012053193A1/ja active Application Filing
- 2011-10-18 SG SG2013029566A patent/SG189462A1/en unknown
- 2011-10-18 US US13/880,133 patent/US8981947B2/en not_active Expired - Fee Related
Patent Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH03258385A (ja) * | 1990-03-06 | 1991-11-18 | Inax Corp | 水質監視機構付き水槽及び水質管理システム |
JPH05142119A (ja) * | 1991-11-15 | 1993-06-08 | Ebara Infilco Co Ltd | 液体中の揮発性成分の分析方法及び分析キツト |
JP2000146947A (ja) * | 1998-11-06 | 2000-05-26 | Yokogawa Electric Corp | 水質管理システム |
JP2000292320A (ja) * | 1999-04-08 | 2000-10-20 | Mitsubishi Electric Corp | 環境水中の揮発性物質検知装置 |
JP2001083122A (ja) * | 1999-09-14 | 2001-03-30 | Nohmi Bosai Ltd | 大気中の微量有害物質の監視方法及びその監視装置 |
JP2009002815A (ja) * | 2007-06-22 | 2009-01-08 | Hitachi Ltd | イオンモビリティ分光計 |
Non-Patent Citations (2)
Title |
---|
J. I. BAUMBACH: "Process analysis using ion mobility spectrometry", ANALYTICAL AND BIOANALYTICAL CHEMISTRY, vol. 384, no. 5, March 2006 (2006-03-01), pages 1059 - 1070 * |
JOSEPH E. ROEHL: "A microprocessor-controlled chemical detection and alarm system based on ion mobility spectrometry", IEEE TRANSACTIONS ON INDUSTRIAL ELECTRONICS, vol. 32, no. 2, May 1985 (1985-05-01), pages 108 - 113 * |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP2844994A4 (en) * | 2012-04-30 | 2015-12-16 | Baker Hughes Inc | METHOD FOR MONITORING AND TREATING INDUSTRIAL LIQUIDS |
JP2015004622A (ja) * | 2013-06-21 | 2015-01-08 | アトナープ株式会社 | 軽合金溶湯の品質を推定する方法および装置 |
JP2022537088A (ja) * | 2019-06-21 | 2022-08-24 | グリー エレクトリック アプライアンシーズ インク オブ ズーハイ | ホルムアルデヒド濃度の検出方法、装置及び空気清浄機 |
JP7356510B2 (ja) | 2019-06-21 | 2023-10-04 | グリー エレクトリック アプライアンシーズ インク オブ ズーハイ | ホルムアルデヒド濃度の検出方法、装置及び空気清浄機 |
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CN103282769B (zh) | 2015-09-30 |
JP5852001B2 (ja) | 2016-02-03 |
US8981947B2 (en) | 2015-03-17 |
JPWO2012053193A1 (ja) | 2014-02-24 |
CN103282769A (zh) | 2013-09-04 |
US20130285821A1 (en) | 2013-10-31 |
SG189462A1 (en) | 2013-05-31 |
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