JP2003279540A - Aerial ion measuring apparatus - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an aerial ion measuring apparatus for measuring ions in air by correcting effects of disturbances caused by an external environment such as changes in wind and flows of air at the measurement of ions in air, and measuring and displaying the ratio of ions in air contained in a unit volume. <P>SOLUTION: The aerial ion measuring apparatus for measuring positive and negative ions contained in air comprises an aerial ion trap for capturing aerial ions, an aerial ion detecting part for processing and outputting a captured measurement signal, a wind velocity detector provided for one end of the aerial ion trap for detecting the wind velocity inside the aerial ion trap, and a measurement control unit for receiving the input of, measuring, and processing the measurement signals from the aerial ion detector and the wind velocity detector. <P>COPYRIGHT: (C)2004,JPO

Description

Detailed Description of the Invention

[0001]

TECHNICAL FIELD The present invention relates to an apparatus for measuring positive and negative air ion amounts. In particular, it is for correcting and measuring the influence of a disturbance caused by the external environment, such as a change in the air flow in the device when measuring the amount of air ions. The present invention relates to an air ion measuring device for measuring and processing the proportion of positively and negatively charged air ions present in the air.

[0002]

2. Description of the Related Art In recent years, negative ions are considered to bring good effects on health and are also called vitamins in the air. It is considered to be good for your body if you ingest a large amount of negative ions, and many negative ion generators have been commercialized. However, negative ions are not visible, and it is not known how much negative ions are filled in the air. In addition, it is said that negative ions have a life span, and the proportion in the air decreases as the distance from the generation source increases.

Therefore, the proportion of negative ions and positive ions can be simply measured so that it is possible to know how much the amount of negative ions that are considered good for health is in the surrounding environment. There is a need for a capable air ion measurement device.

Further, various electrical problems including static electricity are occurring as environmental problems of electronic equipment-related products and parts, and it is said that it is necessary to measure the positive and negative air ion amounts in a certain space. ing.

A conventional air ion measuring device is disclosed in Japanese Patent Laid-Open No. 8-
No. 62180 discloses an ion trap for an ion amount measuring device. In this method, voltages of different polarities can be applied to two electrodes provided on an insulating plate to measure the positive and negative air ion amounts at the same time, and the air ion amount when ionized air is blown It is characterized by measuring.

Further, Japanese Patent Laid-Open No. 2001-13109 discloses a positive and negative ion amount measuring device. This is also a device for detecting the amount of positive and negative ions, and it is possible to simultaneously measure the amount of positive and negative air ions without switching the polarities between the two pairs of electrode cylinders and the collecting electrodes by sucking air ions into the housing using a fan. Is a feature.

[0007]

However, in the structure described in Japanese Patent Laid-Open No. 8-62180, there is a description about obtaining the total amount of air ions, but the ratio of air ions contained in a unit volume of air. Is not disclosed. In addition, JP-A-2001
In the configuration described in Japanese Laid-Open Patent Publication No. 13109, the total amount of air flowing into the measuring unit is known in advance according to the specifications of the fan to be used. be able to.

However, in any of the configurations, the influence of external disturbances such as changes in the air flow during the measurement of the amount of air ions cannot be avoided. In particular, in the measurement at the outlet of an air conditioner with an air ion generator, there was a problem in terms of the reliability of the measurement data due to the influence of the above-mentioned disturbance and the like.

The present invention has been invented in view of the above problems, and is an apparatus for measuring the ratio of ions contained in the air and the amount of the ions, and the apparatus is equipped with a wind speed detection unit including a wind speed sensor. It is an air ion measuring device that measures and displays the ratio of ions contained in a more stable unit volume of air by detecting the air flow rate and correcting the factor of disturbance from the external environment.

[0010]

In order to achieve the above object, the air ion measuring device of the present invention adopts the constitution described below. An air ion measuring device for measuring positive and negative ions contained in air, which is an air ion trap part for trapping air ions, and an air ion detecting part for processing and outputting the trapped measurement signal. And a wind speed detection unit provided at one end of the air ion trap unit for detecting the wind speed in the air ion trap unit,
An air ion measuring device comprising a measurement control unit for inputting, measuring and processing measurement signals from the air ion detecting unit and the wind speed detecting unit. Next, in the above-mentioned air ion measuring device, a fan is provided at an air outlet of the air ion trap portion. Furthermore, the wind speed detection unit includes a wind speed sensor and a detection circuit for processing a measurement signal from the wind speed sensor and outputting the measurement signal to the measurement control unit. .

[0011]

BEST MODE FOR CARRYING OUT THE INVENTION The air ion measuring device according to the present invention has the following configuration. An air ion trap unit for trapping air ions, an air ion detection unit for processing and outputting a measurement signal captured from the air ion trap unit, and an air ion trap provided at one end of the air ion trap unit An air ion measuring device comprising: a wind speed detecting unit for detecting a wind speed in the trap unit; and a measurement control unit for inputting measurement signals from the air ion detecting unit and the wind speed detecting unit and performing measurement processing. Can be provided. Here, the air ion trap section in the present invention is a mechanism for trapping ions in the air, and the air ion detecting section processes and outputs the trapped measurement signal.
The wind speed detection unit is a mechanism that measures the wind speed that has flowed into the air ion trap unit, and transmits the detected signal to the measurement control unit. The measurement control unit is a mechanism that inputs measurement signals such as the amount of air ions and the amount of wind velocity from the air ion detection unit and the wind velocity detection unit, measures and displays the ratio of positive and negative air ions from this.

Further, in addition to the above-mentioned structure, a more stable measurement can be achieved by using an air ion measuring device having a fan at the air outlet of the air ion trap section.

Further, the wind speed detection unit is composed of a wind speed sensor and a detection circuit for processing the measurement signal from the wind speed sensor and outputting the measurement signal to the measurement control unit, and detects the wind speed amount flowing into the air ion trap unit. To detect. With the above configuration, the wind velocity flowing into the air ion trap section is detected,
It is possible to measure the amount of positive and negative air ions contained in a unit volume by correcting the influence of external disturbance.

(First Embodiment) A first embodiment of the present invention will be described below with reference to the drawings.

FIG. 1 is a conceptual diagram of an air ion measuring device of the present invention, in which a positive and negative air ion amount detecting mechanism is independently provided. FIG. 3 shows a conceptual diagram of the circuit of the wind speed sensor, and FIG.
It is the figure which showed the output potential of a wind speed sensor, and the relationship of wind speed.
FIG. 5 is a view showing a flow chart relating to the measuring method of the air ion measuring device of the present invention.

First, the first embodiment will be described with reference to FIG. The air ion trap unit 2 is composed of a pair of detection electrodes 10 and a ground electrode 12 for detecting positive and negative air ion amounts. Detection electrode 10 and ground electrode 12
Are arranged so as to face each other, and the distance between both electrodes is set to about several mm. At the time of measurement, the voltage applied to each of the detection electrodes was set to positive and negative 6 to 8V.

The amount of air containing positive and negative air ions flowing into the air ion trap section 2 is detected by a wind speed sensor 20 arranged near the air outlet 18, and measurement control is performed from the detection circuit 22 after A / D conversion. The signal is transmitted to the unit 6. Further, positive and negative ions in the air are once trapped in the detection electrode 10 to which a voltage is applied before reaching the air outlet 18.

The positive and negative air ions trapped by the detection electrode 10 provided in the air ion trap section 2 are subjected to current-voltage conversion, amplification, A / D conversion, etc. by the air ion detection section 14 provided independently. After performing the processing, the measurement signal is output to the measurement control unit.

The measurement controller 6 includes an air ion detector 14,
The measurement signal sent from the wind speed detection unit 4 is input, the measurement signal is measured, and then the measured value is displayed. The measurement signal sent from the wind speed detection unit 4 is converted into a wind speed value, and the total air amount is calculated from information such as the volume inside the air ion trap unit 2 and the sampling time (measurement time).
Further, the measurement signal sent from each air ion detection unit 14 is converted into a positive ion amount and a negative ion amount, and the ratio of each air ion is expressed by the number per unit volume from the ratio with the total air amount. indicate.

(Second Embodiment) In the second embodiment of the present invention, a fan is added in addition to the above-mentioned air ion measuring device. Only the portion added to the configuration described in the first embodiment will be described below with reference to FIG.

In this configuration, in addition to the configuration of the first embodiment described above, the fan 8 is provided in the wind velocity detecting section 4 near the air outlet 18.
Are arranged. As a result, from the air inlet 16
A constant amount of air from the fan and an additional amount of air due to external environmental disturbance are introduced. That is, the wind speed detection unit 4 detects the air volume including the disturbance of the external environment. The measurement control unit 6 takes in the wind speed value V0 by the fan as an initial value, reads the variation ± α due to the influence of the external environment at the time of measurement, and corrects it as V0 ± α.

Further, the wind speed detecting section 4 of the present invention comprises a wind speed sensor 20 and a detecting circuit 22. As shown in FIG. 3, the wind speed sensor is composed of two pairs of elements such as thermistors. One is a detection element 24 and the other is a temperature compensation element 26 that detects the temperature of the wind. The two pairs of elements form a Wheatstone bridge, and convert the potential difference generated when the electrical balance of the bridge is lost due to heat deprivation and change in the heating resistance value into a wind speed value.

The conversion of the wind speed value is derived from the relationship between the wind speed sensor and the output potential shown in FIG. Further, the total amount of air taken in is calculated from the intake time (sampling time), the volume of the air ion trap mechanism 2, and the like.

According to the method of the present invention, the wind velocity flowing into the air ion trap is detected, the influence of external environmental disturbance is corrected, and the ratio of negative ions and positive ions contained in a unit volume of air is measured. It becomes possible.

Next, the measurement algorithm of the present invention will be described with reference to the flow chart of FIG. 5 together with the case of the first embodiment. First, when the power button of the measuring device is pressed to start the measurement, zero adjustment is automatically performed. Next, it is determined whether there is wind speed or not. If there is wind speed,
Take corrective measures depending on whether a fan is used or not. When a fan is used, the wind speed is known in advance, so it is measured how much the wind speed changes. If no fan is used, the amount of wind velocity that naturally flows is measured and calculated as the total air amount. After that, the result obtained by the above correction is converted into the amount of air ions per unit volume and measured and displayed.

With the above configuration, it is possible to correct the influence of disturbance caused by the external environment, such as changes in wind and air flow when measuring positive and negative air ion amounts. It is considered that the problem of external environmental disturbance is caused by the fact that the air being measured is convected in the device or partially cavitized, and the actual intake amount of air changes. To be By using the wind speed detecting unit of the present invention to measure and correct the amount of air actually taken in, it becomes possible to accurately measure the ratio of the amount of air ions per unit volume.

Although the wind speed sensor has been described as the wind speed detecting mechanism of the present invention, it is not particularly limited.
What is important is to measure the total amount of air, and other wind speed detecting means may be used.

In the embodiments of the present invention, the parallel plate type in which the detection electrode and the ground electrode are arranged in parallel has been described.
There is no particular limitation, and a cylindrical detection configuration may be used.

[0029]

According to the air ion measuring device of the present invention, which comprises the air ion trap portion, the air volume detection portion, and the measurement control portion, it is possible to perform the measurement without being affected by the disturbance of the external environment. became.

[Brief description of drawings]

FIG. 1 shows a conceptual diagram of an air ion measuring device according to an embodiment of the present invention.

FIG. 2 is a conceptual diagram of an air ion measuring device using a fan according to an embodiment of the present invention.

FIG. 3 is a conceptual diagram of a detection circuit of a wind speed sensor.

FIG. 4 is a diagram showing a relationship between an output potential of a wind speed sensor and wind speed.

FIG. 5 is a view showing a flowchart regarding a measuring method of the air ion measuring device of the present invention.

[Explanation of symbols]

2 Air ion trap section 4 Air volume detector 6 Measurement control unit 8 fans 10 Detection electrode 12 Ground electrode 14 Air ion detector 16 Air inlet 18 Air outlet 20 Wind speed sensor 22 Detection circuit 24 detectors 26 Temperature compensation element

Claims (3)

[Claims] 1. An air ion measuring device for measuring the amount of positive and negative air ions contained in air, the air ion trap portion for trapping air ions, and the measurement trapped from the air ion trap portion. An air ion detection unit for processing and outputting a signal, a wind speed detection unit provided at one end of the air ion trap unit for detecting the wind speed in the air ion trap unit, and the air ion detection unit and wind speed detection An air ion measuring device comprising a measurement control unit for inputting a measurement signal from the unit and performing measurement processing. 2. The air ion measuring device according to claim 1, wherein a fan is provided at an air outlet of the air ion trap portion. 3. The wind speed detection unit includes a wind speed sensor and a detection circuit for processing a measurement signal from the wind speed sensor and outputting the measurement signal to the measurement control unit. Item 3. The air ion measuring device according to Item 1 or 2.