JP2002333415A - Measuring device and measuring method of pollutant - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a device for measuring pollutant quickly, highly-accurately and simply, by dissolving the pollutant on the fixed-area polluted surface into a trace and fixed-volume liquid. SOLUTION: This measuring device of the pollutant equipped with two electrodes in electrical contact with a conductivity meter or contactable therewith, for evaluating the degree of pollution of the pollutant from conductivity is equipped with an enclosure for including the electrodes, a support for crimping the enclosure onto the surface of a measuring object, and an introduction part for introducing the liquid into a space formed by the enclosure and the surface of the measuring object.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an apparatus and a method for measuring fouled matter. More specifically, the present invention relates to a measuring device and a measuring method for evaluating the degree of fouling of a fouled material.

[0002]

2. Description of the Related Art Conventionally, the degree of contamination has been measured by wiping a soiled surface of a fixed area with a wet cloth, suspending it in a fixed amount of distilled water or the like, measuring its conductivity, and measuring the equivalent salt content. The concentration was determined, but this method was very cumbersome. Therefore, in the measuring device described in JP-A-8-233760, first, an adhered body made of an absorbent material is attached to a soiled surface, and then the tips of a pair of rod-shaped electrodes are brought into contact with the adhered body. Then, the electrode is slightly vibrated. Thereafter, a predetermined voltage is applied between the two electrodes, and a current flowing between the two electrodes is measured to calculate the electric resistance. However, in this case, the dissolving rate of the contaminated material is extremely slow, and it takes a long time even if it is vibrated, and the reproducibility of the dissolving speed is low due to the effect of contaminants other than salts. There is a problem that the ratio varies. On the other hand, in the measuring apparatus described in Japanese Patent Application Laid-Open No. 5-322950, a liquid is used, but the liquid is limited to the liquid attached to the electrode, and therefore, the reproducibility of the amount of the liquid is poor. There's a problem.

[0003]

SUMMARY OF THE INVENTION Therefore, in the present invention, a method for quickly and accurately measuring a fouled substance by dissolving a fouled substance on a fouled surface of a fixed area in a small amount and a fixed volume of liquid. An object is to provide an apparatus and a measurement method.

[0004]

According to a first aspect of the present invention, there is provided an apparatus for measuring contamination, comprising two electrodes which are electrically connected to or can be connected to a conductivity meter. A contamination measuring device for evaluating the degree of contamination of an object, wherein the enclosure including the electrode, a support for crimping the enclosure to the surface of the object to be measured, and the surface of the object to be measured and the enclosure And an introduction part for introducing a liquid into a space formed by

[0005] According to a second aspect of the present invention, there is provided an apparatus for measuring a contaminated material, wherein a vibrating means for vibrating the liquid is provided near the liquid.

[0008] According to a third aspect of the present invention, there is provided an apparatus for measuring a contaminated material, wherein an introduction portion for introducing the liquid and a means for injecting a predetermined amount of liquid are connected by a tube or a minute hole.

According to a fourth aspect of the present invention, in the apparatus for measuring a contaminated material, a switch for driving and controlling a vibrating means for vibrating the liquid is provided in the means for injecting the predetermined amount of liquid. .

[0010] According to a fifth aspect of the present invention, there is provided an apparatus for measuring a contaminated material, wherein a projection protruding from the support is provided in a space defined by the enclosure and the surface of the object to be measured. The surface of the object to be measured is brought into contact with the surface of the object to be measured according to the relative position between the object and the surface of the object to be measured.

[0009] The apparatus for measuring a contaminated material according to a sixth aspect of the present invention is characterized in that it has a support means connected to the main body of the apparatus and for keeping the main body of the apparatus at a fixed position with respect to the measured object.

According to a seventh aspect of the present invention, there is provided an apparatus for measuring contaminants, wherein the conductivity meter and other sensor units are connected by a flexible electric wire and a tube.

[0011] According to another aspect of the present invention, there is provided a contamination measuring device, comprising: a communication device; a data transfer interface with an external electronic device;
It is characterized by including at least one of a display device and an alarm device.

The method for measuring fouling according to claim 9 is a method for measuring fouling comprising two electrodes and evaluating the degree of fouling of the fouling from electrical conductivity, wherein the two electrodes are provided inside a support. Is provided, and an enclosure is provided at the distal end edge of the support so as to cover the distal ends of the two electrodes. After the enclosure is pressed against the surface of the object to be measured, the enclosure and the object to be measured are pressed. The liquid is introduced into a minute space surrounded by the surface of the object, and then a predetermined voltage is applied between the two electrodes.

[0013]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, an apparatus and method for measuring a contaminated material according to the present invention will be described with reference to the accompanying drawings.

Embodiment 1 As shown in FIG. 1, a measuring apparatus according to Embodiment 1 has two electrodes 1 and an enclosure arranged around the electrodes 1, for example, having an inner diameter of 8 mm. A rubber O-ring 2 having a thickness of 1 mm, a support 3 made of rubber on the electrode 1, and a holding member 4 for holding the support 3;
A vibrator 5 disposed inside the support 3 and comprising a motor as a vibrating means and a weight; and two minute tubes 6 and 7 provided so as to reach a space formed by the O-ring 2 and the support 3. And a conductivity / contamination degree conversion display 8, which is a display device having a calculation function of measuring the conductivity between the electrodes 1 and converting the measured value to the degree of contamination and displaying the contamination value. In the present embodiment, components other than the conductivity contamination degree conversion display 8 constitute a sensor unit. The vibrator 5 is arranged so as to be in contact with the electrode 1 via an insulator. In FIG. 1, 9
Is a device to be measured, 9a is a surface (flat or curved surface) of the device to be measured (hereinafter referred to as a surface to be measured) of the device 9, and 10 is a liquid such as distilled water. In addition, as the electrode 1, gold or platinum, or a material obtained by plating them, carbon, or the like can be used. Also, O
Since the ring 2 may be deteriorated, it is desirable to provide a structure in which an annular groove is provided at the distal end of the support body 3 so that the ring 2 can be fitted in the groove and can be easily replaced.

The holding member 4 is provided with a DC power supply (battery) 11 for driving the vibrator 5. In the first embodiment, the switch of the vibrator 5 is installed on the holding member 4 or the like so that it can be turned on / off arbitrarily. However, the present invention is not limited to this. The O-ring 2 can be installed near the ring 2 and turned on at the same time as the O-ring 2 is pressed against the surface 9a to be measured of the device 9, and turned off when the O-ring 2 is separated.

The vibrator 5 is provided inside a rubber support 3. This is because vibration is easily transmitted to distilled water even if the O-ring 2 is firmly fixed to the measured surface 9a of the device 9 by hand or a robot arm and the support 3 is strongly fixed. Therefore, the same effect can be obtained even when the vibrator 5 is mounted on a hard object and a rubber-like substance is placed between the hard object and the holding member 4 held by a hand or the like. In any case, it is desirable that a rubber-like substance is present between the vibrator 5 and an object such as a hand that is relatively hard to vibrate. When the rubber-like substance is omitted, it is necessary to appropriately adjust the strength of supporting by hand.

In the conductivity pollution degree conversion display 8, the conductivity obtained from the conductivity meter and the equivalent salt adhesion density (the amount of salt attached to the surface of a certain area is divided by the area). Value) from the correlation coefficient, the measured conductivity is converted to the equivalent salt deposition density, and a program for displaying the same is built in. Therefore, the equivalent salt deposition density, that is, the pollution degree, can be calculated without the operator's calculation. You can know.
However, since the degree of contamination can be inferred only by the conductivity display function, it is also possible to use a conductivity display provided with a conductivity meter having no pollution degree conversion function.

The measurement apparatus according to the first embodiment is arranged in a well-balanced manner with respect to the arrangement of components such as the electrode 1 and the O-ring 2 so that the O-ring 2 alone makes the whole apparatus stand still on a horizontal plane. Therefore, leakage of the liquid can be prevented. After one measurement, the O-ring 2
With distilled water facing upward, distilled water is poured into the support 3. Then, after washing by vibrating the vibrator 5 for several seconds, the distilled water is discarded. By repeating such a cleaning operation, the measuring device can be cleaned until it can be used again.

Next, a procedure for measuring the degree of contamination of the equipment by the measuring apparatus according to the first embodiment will be described. First, the holding member 4
Alternatively, holding the conductivity contamination degree conversion display 8 in hand, the O-ring 2 is pressed against the surface 9a to be measured of the device 9 to be measured. Thereby, a small space surrounded by the O-ring 2 and the surface 9a to be measured of the device 9 is formed around the electrode 1. This space and the outside do not communicate with each other except for the fine tubes 6 and 7. Two electrodes 1 exist in this minute space. Since the O-ring 2 has an inner diameter of 8 mm and a thickness of 1 mm, the O-ring 2 is
The volume of the space consisting of a is 50 μL. Next, a certain amount of distilled water of about the volume of the space is poured from the fine tube 6 functioning as a liquid injection portion (introduction portion) using a device such as a micropipettor and a tube. Note that the micropipettor is an apparatus that can easily and repeatedly dispense a liquid of about 10 to 1000 μL in a predetermined volume. At this time, since the air escapes from another fine tube 7 that functions as an air vent, distilled water is smoothly injected. Thereafter, or when the support 3 is pressed, the distilled water is vibrated through the electrode 1 by activating the vibrator 5 at a vibration frequency of, for example, 1 to 1000 Hz.
This makes it possible to stir the distilled water and quickly dissolve the contaminants on the surface 9a to be measured of the device 9 in the distilled water, and at the same time shorten the time required to make the concentration of the solution uniform.

Next, a temporal change in the electric conductivity when the vibrator 5 is activated will be described. Vibrator 5
FIG. 2 shows the effect when the program is activated. That is, when the vibrator 5 was not activated, the conductivity of the distilled water was 100 μS / cm. However, when the vibrator 5 was activated from the time T1 (10 seconds), the electrical conductivity was 1 in about 10 seconds.
It increased from 00 μS / cm to 400 μS / cm, and then became constant. When the measurement is repeated for the same sample under the same conditions, the value of 100 μS / cm is ± 30 μS / cm.
(Ie ± 30%), but this 400 μS /
The cm was ± 10 μS / cm (ie ± 3%), which was very reproducible, and the accuracy was increased 10 times. In addition, the time required to reach a constant value is 10 seconds to 1 minute, and the vibrator 5
It was less than 1/2 compared to the case without.

As described above, the conductivity gradually increases, but when the conductivity becomes almost constant, if it can be notified to the measurer by an alarm device using light, sound, vibration, or the like,
The operator does not need to always look at the display device. Therefore, based on the change in the conductivity, it is calculated whether the measurement has become constant, and based on the result, the lamp is turned on, a sound is emitted, or the vibrator is moved to vibrate the measuring device. Thereby, the degree of fatigue of the measurer can be reduced.

Further, when the value becomes constant, the display value of the display device is held at that value. Thereby, even if the measuring device is separated from the surface to be measured, it is possible to see the degree of contamination and the measurement is facilitated.

Further, in general, if the equivalent salt content density is 0.01 mg / cm ² as a reference, if the density is more than 0.01 mg / cm ² , a cleaning operation is required. Therefore, an alarm signal is issued by turning on the lamp, blinking the lamp, or emitting a sound when the equivalent salt deposition density calculated from the change in conductivity exceeds the reference value. As a result, the measurer will be able to
No more mistakes. Further, the reference value may be set to an arbitrary value by a measurer in advance.

In addition, when the liquid is introduced from the liquid introduction part and the air is removed from the air vent part at the same time, if the air remains, the volume of the liquid becomes less than the assumed one,
Measuring the conductivity between the two electrodes does not correctly evaluate the correct conductivity of the liquid. Therefore, even if air remains so as to adhere to the support, a portion of the electrode close to the support is insulated so that correct conductivity can be measured as much as possible. This makes it possible to measure the conductivity independent of the presence or absence of a liquid near the support.

Furthermore, it has been found that air has a property of adhering to a hydrophobic object more easily than a hydrophilic object.
The specific gravity of air is lower than that of water. By utilizing these properties, air can be easily released. That is, as shown in FIG. 3A, by making the vicinity of the air outlet 12 hydrophobic and making the other portions hydrophilic, air can easily gather at the air outlet. Further, a depression 13 is formed near the air outlet 12 or FIG.
As shown in (b), the air outlet 12 and the liquid inlet 14
By forming the groove 15 in the support 3 which is on a straight line connecting the air, the air is easily collected at the air outlet 12. In addition, 1 is an electrode and 2 is an O-ring. The depression 13 has a depth of about 2 mm and a size of about 3 × 3 mm, for example. The groove 15 has a depth of, for example, 0.5 m.
m and a width of about 1 mm. As a result, when water is injected, the inside air comes out of the air outlet 12 almost completely. To make it hydrophobic, for example, grease may be applied very thinly. Alternatively, the hollow 13 and the groove 15 may be covered with a fluorine resin or the like. In addition, even if there is no hollow 13 or groove 15, 2 m around the air outlet 12
About m may be formed with a fluororesin or the like. Hydrophilicity can be achieved, for example, by forming with vinyl chloride. It is also possible to use another resin, for example, an acrylic resin.

Further, a metal electrode is provided so as to be in contact with the minute space separately from the one for measuring the degree of contamination, and the conductivity between the metal electrodes is monitored to monitor the introduction of the liquid into the minute space. When liquid is introduced into the part,
It is convenient for the measurer to notify the measurer by light, sound or vibration.

In order to prevent the liquid from wetting the surface to be measured after the measurement is completed, a funnel may be provided for collecting the liquid in close contact with the surface to be measured.

Next, the change with time in the conductivity of a measuring device using a sticking body made of an absorbent material (filter paper) as a conventional measuring device and the measuring device of the first embodiment were examined. In the conventional measuring device, a filter paper having a thickness of 0.3
After attaching the adherend moistened with distilled water to the surface of the device, the conductivity of the contaminated material was measured.
The results are shown in comparison with FIG. As is clear from FIG. 4, in the case of the measuring device using the filter paper, the first embodiment is used.
In comparison with the measuring device of the above, the time required for obtaining a constant conductivity was longer, and the value of the conductivity was smaller. This is considered to be due to the fact that the movement of ions in the contaminated material is slow in the filter paper, the liquid cannot be vibrated well, and the like.

The vibrator 5 according to the first embodiment vibrates the distilled water via the electrode 1, but the present invention is not limited to this, and is shown in FIG. In this way, the vibration speed of the vibrator 5 is transmitted to the liquid 10 by bringing the stirring rod 16 such as a plastic piece or a metal piece other than the electrode 1 into contact with both the vibrator 5 and the liquid 10 so that the dissolving speed of the contaminated material is reduced. Can be raised.

Further, the fine tube 7 used for air bleeding is used.
Has a straight pipe shape, but the present invention is not limited to this. For example, the shape may be a spiral shape or a shape in which the tip is bent 30 to 360 degrees (one rotation). . Thereby, the distilled water does not leak carelessly.

Second Embodiment In the first embodiment, as a liquid, a certain amount of distilled water of about the volume of the space is poured into the minute space using a device such as a micropipettor and a tube. By storing the liquid that dissolves the fouling substance in a bottle to which a micropipettor is connected, many liquids can be entrained, so that measurement can be continued many times. However, as shown in FIG. 6, the measurer S must simultaneously hold two objects, the bottle 22 of the infusion container, via the measuring device M and the tube 21. For this purpose, it is preferable to attach a holder to be attached to the belt 23 of the measurer S to the bin 22. In this case, for example, the micropipettor 24 is operated with the left hand, and the measuring device M is operated with the right hand.
Operate. It is also possible to put the bin 22 in a pocket. In the present embodiment, the bottle 22 and the micropipettor 24 are injection means. The bottle 22 may be made of any material that does not elute ionic substances. For example, plastic or glass can be used. If the bottle 22 is made of glass, it is preferable to protect it with a plastic object.

After the liquid is sent into the minute space A so that the micropipettor 24 is not carelessly operated, it is safe to provide a lock mechanism using a screw or a spring.

Further, the measuring device M may have a liquid holding function. For example, as shown in FIG.
A tube 28 having a valve 27 and a liquid inlet 26 with a lid 26a for injecting a liquid into the tube 5 are connected, and an air inlet 29 through which air enters is provided. It is connected to the space A. That is, the container 25 is a dropper-type container including the injection tube 25a and the injection cylinder 25b. Then, for example, a hand is inserted through a window formed in the measuring device M, and the container 25 (injection tube 25
By compressing b) with a finger, distilled water can be introduced into the micro space A. If compression is stopped, valve 27
The air enters the container 25 through the, and can be used repeatedly. As a flexible material of the container 25,
Not only polyethylene but also various polymers or rubbers can be used. Further, it is not necessary to use a flexible material for all the containers 25. This is the same as a dropper. The valve 30, of course, restricts the flow from the container 25 through the liquid outlet 31 in one direction of the micro space A. In the case of the valve 27 at the air inlet 29, the flow restricts the flow from the surrounding space in one direction of the container 25. Restrict. However, as shown in FIG. 8, neither the liquid outlet 31 nor the air inlet 29 has a valve, and the very small holes 32, 33 are provided.
By themselves, these objects can be achieved by utilizing the surface tension of water or the elasticity of rubber or the like.
Similar effects were obtained by using a syringe instead of a dropper.

Of course, the degree of contamination can be measured even if the function of the micropipettor is provided directly in the measuring device.

Further, the liquid leaks from the air outlet,
Since the measurer or the surface to be measured may get wet, to prevent this, as shown in FIG.
As in the case of the bottle 22 attached to the container, a waste liquid bin 22a for storing a waste liquid may be attached to the waist or the like, and this may be connected to the tube as the air vent portion by a tube 21a. Further, a waste liquid sump may be provided in the measuring device main body.

Third Embodiment In the first embodiment, it has been described that the switch of the vibrator 5 is installed on the holding member 4 or the like, and the switch is operated with the hand holding the holding member 4. However, holding the switch while operating the sensor body requires some skill. Therefore, FIG.
As shown in (2), the switch 34 is separated from the holding member 4 by the electric wire 35, and the switch 34 can be installed on the micropipettor 24, for example. This allows
If the holding member 4 is held by the right hand after the operation of injecting the liquid, for example, the right hand, the switch 34 of the vibrator is operated by the left hand, and the holding operation of the holding member 4 by the opposite hand (right hand) is performed. It can be performed more reliably.

The switch 34 may be of a type that energizes only when pressed, or a type that maintains energized once pressed once released. In the former case, there is an advantage that the operation time of the vibrator can be more finely operated. In the latter case, since there is no need for a manual maintenance operation, there is an advantage that fatigue due to measurement is small. Similar advantages can be obtained when the switch 34 is installed on the holding member 4 instead of the present embodiment. In this case, of course, there are various types of switches, and many types of switches can be used, for example, a type of knocking down a rod.

Fourth Embodiment In the first embodiment, the dissolution of the contaminated material on the measured surface 9a of the device 9 into the liquid is performed only by vibration. For this reason, it takes time to dissolve the very strongly adhered contaminants. Therefore, if a projecting object (projection) is connected to the support 3 and the surface 9a to be measured is rubbed with the object, the dissolution rate can be greatly increased. For example, FIG. 11 shows an example of a projection 41 having a brush. Vibrator 5
By vibrating the protrusions 41 by the vibration of, the contaminated material can be dissolved very quickly.

In this embodiment, even if the vibrator 5 is not used, the main body is slightly moved by hand to the measured surface 9 of the device 9.
After being pressed against a, the fouling can be dissolved very quickly by rocking back and forth or left and right. For example, FIG. 12 shows an example of a rotating brush connected to a motor 42 as a projection 42. In this case, the fouled substance can be dissolved very quickly without using a vibrator. The control of the motor 41 can also be performed by a switch similarly to the control of the vibrator described above. The range to be rubbed is desirably the entire surface inside the O-ring for accurate measurement.

Fifth Embodiment In the first embodiment, the measuring device is a
I was touching only by the ring. For this reason, some skill is required to hold the measuring device M perpendicular to the surface 9a to be measured. Otherwise, a gap will be formed between the O-ring 2 and the surface 9a to be measured, and the liquid will leak. Therefore, support means is installed on the apparatus main body such as the holding member 4 or the support 3. For example, as shown in FIGS. 13 and 14, as a support means, a structure in which an arm-like body 44 is connected to an apparatus main body, for example, a holding member 4 by a hinge 45, or as shown in FIG. A structure connected to the support member 4 together with the spring 47 housed in the step portion can be used. In the case of the support means shown in FIG. 15, the rectangular tubular body 46 can be pressed against the surface 9a to be measured by the force of the spring 47. The former case is effective when the surface to be measured is relatively wide, and the latter case is effective when the surface to be measured is relatively narrow. In the former case, by attaching a suction cup or a magnet to the tip of the arm-shaped body 44, the support means can be stably held. Further, the arm-shaped body 44 may be bent at the hinge 45 so as to be housed in the main body. The effect of stabilization can be obtained with only one arm-shaped body 44, but more stable when three or four arm-shaped bodies 44 are provided around the arm-shaped body 44.

Sixth Embodiment In the first embodiment, distilled water is used as a liquid for dissolving contaminants. However, the present invention is not limited to this, and a surfactant containing no ions may be used. ,
For example, distilled water in which polyoxyethylene sorbitan monostearate or the like is dissolved at a concentration equal to or higher than the limit micelle concentration, or distilled water in which an ion-free organic solvent such as ethanol is dissolved can be used. By dissolving the surfactant or the organic solvent, the dissolving rate of the contaminated material can be increased, and the contaminated material that cannot be dissolved only with distilled water can be dissolved. For example, 0.
When distilled water containing 5 to 3% of polyoxyethylene sorbitan monostearate was used, the time required for the fouling degree indicated value to reach a certain value was reduced by about 30%. The reason why a surfactant containing no ions is used is that the presence of ions makes the liquid itself conductive, making it difficult to evaluate the degree of minute contamination. However, even when the concentration of the surfactant is equal to or lower than the critical micelle concentration, the effect of adding the surfactant is recognized. When the degree of fouling is large, the effect of ions is relatively small, and the use of a surfactant containing ions is not denied.

Seventh Embodiment In the first embodiment, a vibrator 5 composed of a motor and a weight is used. However, the present invention is not limited to this, and as shown in FIG. The ultrasonic vibrator 50 installed so as to be in direct contact with the liquid 10 can be used. This ultrasonic transducer 5
The vibration frequency at zero reaches 20 kHz to 10 MHz. Further, the ultrasonic vibrator 50 can further increase the dissolving speed, and can also dissolve contaminants that cannot be dissolved only with distilled water. For example, when the ultrasonic vibrator 50 having a vibration frequency of 1.6 MHz was used, the time required to reach a certain value was reduced by about 50% as compared with a case where the ultrasonic vibrator 50 was not used. When using ultrasonic waves, it is necessary to provide an electric circuit and a power supply for oscillating the ultrasonic transducer 50.

Eighth Embodiment Next, in the eighth embodiment, the relationship between the time until the displayed value of the degree of contamination becomes constant and the degree of contamination is examined by changing the size (inner diameter or thickness) of the O-ring. Was. First, FIG. 17 shows the relationship between the thickness of the O-ring and the time until the displayed value of the degree of contamination becomes constant. However, this relationship fluctuates depending on the state of fouling. However, it can be seen that the thicker the O-ring, the longer it takes for the displayed value of the contamination degree to become constant. In addition, as shown in FIG. 18A, when there is fine unevenness in the contaminated part P than the circle surrounded by the O-ring 2, the inner diameter of the O-ring, that is, the area surrounded by the O-ring 2 is larger. Although the reproducibility is improved, the dissolving substance P takes a long time to dissolve, and as shown in FIG. The distribution of the degree of contamination in the region becomes difficult to understand. Therefore, it is difficult to determine the optimal value of the size (inner diameter or thickness) of the O-ring depending on the situation. However, considering the portability of the sensor unit and the dissolution rate of the contaminated material, 25 to 5
It is preferable to select so as to form a minute space of 00 μL. Of course, other than O-rings, rings of other shapes may be used as long as a minute space can be formed between the surface of the device and the support or the ultrasonic transducer.

Ninth Embodiment In the ninth embodiment, a dome-shaped enclosure 51 is used as shown in FIG. 19 instead of the O-ring enclosure, and the dome-shaped enclosure 51 and the object to be measured are used. A minute space is formed with the measured surface 9a of a certain device 9. By pressing the dome-shaped enclosure 51 against the surface 9a to be measured of the device 9, the internal air is extracted through the fine tube 7,
The liquid 10 can be introduced from the fine tube 6 by restoring the dome-shaped enclosure 51, so that a new device for liquid injection can be eliminated.

When the dome-shaped enclosure 51 is used, the dome-shaped enclosure 51 can be directly vibrated by a motor or a speaker structure (composed of an oscillator, a coil and a magnet). When vibrating such a dome-shaped enclosure,
The liquid can also be directly agitated by a motor or the like having fine wings attached to the rotating part. However, at this time, it is preferable to provide a waterproof mechanism.

In order to vibrate the liquid 10 and bring the liquid 10 into close contact with the surface 9a to be measured, the O-ring 2 and the dome-shaped enclosure 51 are made of a rubber-like substance such as silicone rubber or natural rubber. Although it is desirable to manufacture it, it can also be manufactured from an elastic plastic or a thin stainless steel plate.

Embodiment 10 Although only the O-ring is used as the enclosure in Embodiments 1 to 8, the present invention is not limited to this, and as shown in FIG. The O-ring 2 made of a rubber-like substance can be combined with a ring 52 made of a non-rubber-like substance such as a hard plastic or metal disposed inside the O-ring 2.
By using such an enclosure, as shown in FIG. 20 (b), even if the force of pressing the O-ring 2 against the surface 9a to be measured of the device 9 fluctuates, the O-ring 2 is not less than a certain amount by the non-rubber ring 52. Since the ring 2 is not deformed, the space (volume) in which the liquid enters can be made more completely constant. If the rubber O-ring 2 is in contact with the surface 9a to be measured of the instrument 9, a non-rubber ring 52 is arranged outside the rubber O-ring 2 as shown in FIG. You can also.

The positional relationship between the rubber-like substance of the O-ring 2 and the non-rubber-like substance of the ring 52 is not limited to these, but may be various forms.
For example, as shown in FIG. 22, an inner ring made of a non-rubber-like substance ring 53 and a cylindrical ring 54 of a rubber-like substance coated on the outside of the ring 53, and as shown in FIG. Material ring 55 and device surface 9 to be measured
An enclosure made of a rubber-like material O-ring 56 fixed to the a-side, or as shown in FIG. 24, a non-rubber-like ring 57 and the outer periphery of the ring 57 including the surface side of the device. And a covering portion 58 made of a rubber-like substance. The rubbery substance and the non-rubbery substance may be a softer rubbery substance and a harder rubbery substance, respectively.

Embodiment 11 In Embodiment 7, as shown in FIG. 25, an electrode 1 and a support 3 as shown in FIG. 25 are configured so that the conductivity pollution degree conversion display 8 in FIG. A belt 61 for handling is attached to a sensor unit composed of the above. The electrode 1 and the conductivity meter of the conductivity indicator or the conductivity contamination conversion indicator are flexible electric wires 6.
They are tied with two. Thereby, for example, the belt 6
If the O-ring 2 is pressed against the measured surface 9a of the device 9 with the finger 1 attached, the degree of contamination of the measured surface 9a of the device 9 in a narrow space where it cannot enter can be evaluated at a remote position. it can.

Embodiment 12 In Embodiments 1 to 8, the measurement results are displayed at only one place of the measuring device main body. Therefore, depending on the position of the measuring instrument, the measurer may be difficult to see. Therefore, as shown in FIG. 26, in addition to the first display device 71 viewed from the side of the measuring device M, a second
Is installed. This makes it easy to see the measurement result even if the measurement surface at a position lower than the eye of the measurer is measured. Further, by attaching one display device to the device main body via a rotating means such as a hinge,
Since the display device can be freely rotated, the measurement result can be viewed from the side or the ceiling of the main body as described above. Further, as these display devices, a display device using an organic EL device, a fluorescent tube, or the like, or a lighting device such as a lamp is attached, so that the measured values of the display device can be easily viewed even in darkness. .

In the above embodiments, a data transfer interface or an electrode that allows the device body to have a communication function or exchanges data with another communication device, for example, an external electronic device such as a mobile phone or a mobile terminal, is used. This makes it easier to collect and analyze the measurement results.

[0052]

According to the first aspect of the present invention, the enclosure includes the electrode, the support for crimping the enclosure to the surface of the object to be measured, and the surface of the enclosure and the surface of the object to be measured. Since there is provided an introduction portion for introducing a liquid into the space, the contaminated material on the surface can be uniformly dissolved, and the conductivity thereof can be accurately and simply evaluated. The provision of the liquid return port is safe because the surroundings of the measuring section are not unnecessarily wetted after the measurement. When the enclosure is made of a rubber-like substance, liquid does not easily leak. When a combination of a rubber-like substance and a non-rubber-like substance is used, the volume of the liquid tends to be constant.

According to the second aspect of the present invention, since the vibrating means for vibrating the liquid is provided near the liquid,
The liquid can quickly dissolve surface fouling.

According to the third aspect of the present invention, since the introduction portion for introducing the liquid and the means for injecting a fixed amount of liquid are connected by a tube or a minute hole, the surface to be measured can be connected to the surface to be measured. A liquid can be introduced into a small space in contact with the liquid, and a large number of liquids can be entrained by a tube connection, so that measurement can be continued many times.

According to the fourth aspect of the present invention, since the switch for driving and controlling the oscillating means for oscillating the liquid is provided in the means for injecting the fixed amount of liquid, the holding means can be held by one hand. The operation of holding the member can be more reliably performed.

According to the fifth aspect of the present invention, in the space defined by the enclosure and the surface of the object to be measured, a projection protruding from the support is provided, and the projection is connected to the support and the support. Depending on the relative position to the surface of the object to be measured, it is brought into contact with the surface of the object to be measured, so that it is possible to shorten the time required for dissolving the very strongly adhered contaminants or to improve the accuracy. it can.

According to the sixth aspect of the present invention, since there is provided a support means connected to the apparatus main body and for maintaining the apparatus main body at a fixed position with respect to the object to be measured, the measuring apparatus can be vertically mounted on the surface. In order to maintain, you do not need skill level,
No gap is formed between the O-ring and the surface, and leakage of the liquid can be prevented.

According to the seventh aspect of the present invention, since the conductivity meter and the other sensor units are connected by a flexible electric wire, the measuring unit can be separated from the conductivity meter and cannot enter. The degree of contamination of the surface of equipment in a small space can be evaluated at a remote location.

According to the eighth aspect of the present invention, a communication device,
Since it has at least one of a data transfer interface with external electronic devices, a display device, and an alarm device, it sends measurement data to external electronic devices, displays measured values to a measurer, and prepares for measurement. It is possible to inform the measurer of the completion, or to inform the measurer when the measured value exceeds the reference value.

Further, by holding the display value when the change in the conductivity becomes constant on the display device, the degree of contamination can be seen even when the measuring device is separated from the surface, and the measurement becomes easy. In addition, the alarm device notifies the measurer of the constant change in conductivity, so that the measurer does not need to constantly look at the display device, and the degree of fatigue of the measurer can be reduced.

According to the ninth aspect of the present invention, the two electrodes are arranged inside the support, and the front edge of the support is provided with an enclosure including the front ends of the two electrodes. After the enclosure is pressed against the surface of the object to be measured, a liquid is introduced into a minute space surrounded by the enclosure and the surface of the object to be measured, and then a predetermined voltage is applied between the two electrodes. In addition, the contaminants on the surface can be uniformly dissolved, and the conductivity can be accurately and simply evaluated.

[Brief description of the drawings]

FIG. 1 is a partially cutaway front view showing a first embodiment of a fouling measuring device of the present invention.

FIG. 2 is a diagram showing a change over time in conductivity when the vibrator in FIG. 1 is activated.

FIG. 3A is a diagram showing a depression formed near an air outlet, and FIG. 3B is a diagram showing a groove connecting the air outlet and a liquid inlet.

FIG. 4 is a diagram showing a temporal change in conductivity in the measuring device of the first embodiment and a conventional measuring device.

FIG. 5 is a partially cutaway front view showing another example of the vibrator of FIG. 1;

FIG. 6 is a partially cutaway front view showing a second embodiment of the apparatus for measuring a contaminated material of the present invention.

FIG. 7 is a partially cutaway side view showing another example of the measuring device of FIG. 6;

FIG. 8 is a partially cutaway side view showing still another example of the measuring device of FIG. 6;

FIG. 9 is a partially cutaway side view showing still another example of the measuring device of FIG. 6;

FIG. 10 is a diagram showing a third embodiment of the present invention.
FIG.

FIG. 11 is a diagram showing a fourth embodiment of the present invention.
FIG.

FIG. 12 is a partially cutaway front view showing another example of the protrusion of FIG. 11;

FIG. 13 is a diagram showing a fifth embodiment of the present invention.
FIG.

FIG. 14 is a view of the measuring device of FIG. 13 as viewed from a measurer.

FIG. 15 is a partially cutaway front view showing another example of the support means of FIG. 13;

FIG. 16 is a partially cutaway front view showing another embodiment of the vibration means.

FIG. 17 is a diagram showing the relationship between the thickness of the O-ring and the time until the displayed value of the degree of contamination becomes constant.

FIG. 18A is an explanatory view showing a case where the contaminated material has minute unevenness with respect to the O-ring, and FIG.
It is explanatory drawing which shows the case where there is large unevenness in the contaminated material with respect to the ring.

FIG. 19 is a diagram showing a ninth embodiment of the present invention.
FIG.

FIG. 20 (a) is a cross-sectional view of a principal part showing a tenth embodiment of a fouling substance measuring apparatus of the present invention, and FIG.
It is a figure showing the state where the ring was pressed against the surface of the device.

FIG. 21 is a cross-sectional view of a principal part showing another embodiment of the enclosure.

FIG. 22 is an essential part cross-sectional view showing still another embodiment of the enclosure.

FIG. 23 is a cross-sectional view of a principal part showing still another embodiment of the enclosure.

FIG. 24 is an essential part cross-sectional view showing still another embodiment of the enclosure.

FIG. 25 is a first embodiment of the apparatus for measuring a contaminated material of the present invention.
FIG.

FIG. 26 is a diagram showing a first embodiment of the present invention.
FIG.

[Description of Signs] 1 electrode, 2 O-ring, 3 support, 4 holding member,
5 vibrator, 6,7 micro tube, 8 conductivity contamination conversion indicator, 9 equipment, 9a surface (measured surface),
10 liquid, 11 DC power supply (battery), 12 stir bar,
21 tubes, 21a tubes, 22 bottles, 22
a Waste bottle, 23 belt, 24 micropipettor, 25 container, 25a injection tube, 25b injection cylinder, 26 liquid inlet, 26a lid, 27 valve, 2
8 tube, 29 air inlet, 30 valve, 31 liquid outlet, 32 minute hole, 33 minute hole, 34 switch, 35 electric wire, 41 protrusion, 42 motor, 44
Arm-shaped body, 45 hinge, 46 square cylindrical body, 47 spring, 50 ultrasonic transducer, 51 dome-shaped enclosure, 52
Ring, 53 ring, 54 cylindrical ring, 55 ring, 56 O-ring, 57 ring, 58 coating, 6
1 belt, 62 electric wire, 71 first display device, 72
Second display device.

 ──────────────────────────────────────────────────続 き Continued on the front page F term (reference) 2G028 AA01 AA02 BC04 CG02 DH03 DH30 FK02 HN03 HN09 LR02 LR03 LR04 2G060 AA06 AE07 AF08 AG11 HC10 HD01 HD02 HE02

Claims (9)

[Claims] Claims 1. A fouling substance measuring device comprising two electrodes that are electrically connected to or can be connected to a conductivity meter and that evaluates the degree of fouling of the fouling substance from conductivity.
An enclosure containing the electrode, a support for crimping the enclosure to the surface of the object to be measured, and an introduction part for introducing a liquid into a space formed by the enclosure and the surface of the object to be measured. An apparatus for measuring contaminated matter, comprising: 2. The apparatus according to claim 1, further comprising a vibrating means for vibrating the liquid near the liquid. 3. An apparatus according to claim 1, wherein said introduction part for introducing said liquid and means for injecting a predetermined amount of liquid are connected by a tube or a minute hole. 4. The apparatus according to claim 3, wherein a switch for driving and controlling a vibrating means for vibrating the liquid is provided in the means for injecting the fixed amount of liquid. 5. In a space defined by the enclosure and the surface of the object to be measured, a projection protruding from the support is provided, and the projection is positioned between the support and the surface of the object to be measured. The apparatus for measuring a contaminated material according to claim 1, 2, 3, or 4, wherein the apparatus is brought into contact with the surface of the object to be measured according to the target position. 6. The method of claim 1, further comprising supporting means connected to the main body of the apparatus for supporting the main body at a fixed position with respect to the object to be measured. apparatus. 7. The apparatus according to claim 1, wherein the conductivity meter and other sensor units are connected by a flexible electric wire and a tube. 8. The method according to claim 1, further comprising at least one of a communication device, a data transfer interface with an external electronic device, a display device, and an alarm device. measuring device. 9. A method for measuring fouling, comprising two electrodes and evaluating the degree of fouling of the fouling from electrical conductivity, wherein the two electrodes are arranged inside a support, and Is provided at the tip edge of the electrode, the cover including the tips of the two electrodes is pressed against the surface of the object to be measured, and then a minute area surrounded by the enclosure and the surface of the object to be measured is provided. A method for measuring fouling, comprising introducing a liquid into a space and then applying a predetermined voltage between the two electrodes.