KR20190056852A - Weighing machine having a means for removing static electricity - Google Patents

Abstract

Disclosed is a scale device. The scale device has: a housing having an inner space; a scale disposed in the inner space of the housing; a humidity meter coupled to the housing, and measuring the humidity of the inner space of the housing; and a moisture supply device for supplying a mixed gas of water vapor and air to the inner space of the housing on the basis of the humidity information provided by the humidity meter. A measuring error can be fundamentally removed by static electricity by using the scale device.

Description

[0001] WEIGHING MACHINE HAVING A MEANS FOR REMOVING STATIC ELECTRICITY [0002]

BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to an apparatus for removing an error caused by static electricity.

A scale is a device that is used to measure the weight or mass of a sample in a variety of research or experiment processes. As technology develops, it is required to measure the exact mass or weight of a small sample.

However, when the mass or the weight of a small sample is measured in a dry state, a measurement error often occurs due to the generation of static electricity.

It is necessary to develop a technology that can fundamentally eliminate the measurement error of the scale due to such static electricity.

SUMMARY OF THE INVENTION It is an object of the present invention to provide a balance device which is equipped with a moisture supply device and which can eliminate a measurement error caused by static electricity even in a dry condition.

A balance apparatus according to an embodiment of the present invention includes: a housing having an inner space; A balance disposed in the inner space of the housing and measuring the mass or weight of the sample; A humidity meter coupled to the housing and measuring humidity of the interior space of the housing; And a moisture supply device coupled to the housing and supplying a mixed gas of water vapor and air into the internal space of the housing based on humidity information of the internal space provided by the humidity meter.

In one embodiment, the housing is provided with a work hole for loading a sample on the balance, and a radially separated rubber film may be installed on the work hole.

In one embodiment, the housing may be provided with a first water vapor supply hole through which water vapor is injected from the moisture supply device, the moisture supply device being coupled to the housing and including a first space for receiving water, And a second space in which steam generated from the first steam supply hole is mixed with air supplied from the outside and a second steam supply hole corresponding to the first steam supply hole is formed; And a water vapor generating device disposed in the first space and having energy applying means for generating water vapor from the water by applying energy to the water. In one embodiment, the energy applying means may include a heating wire or an ultrasonic generator.

In one embodiment, the mixing chamber may include an outer wall defining an inner space and a partition wall dividing the inner space into the first space and the second space, An opening for supplying water vapor to the second space may be formed. The mixing chamber may include a water inlet for injecting water into the first space and an air inlet for connecting the second space to the external air injection device.

In one embodiment, the moisture supply device may further include a filter disposed to block the first water supply hole of the housing to prevent foreign matter from entering the internal space of the housing.

In one embodiment, the moisture supply device may further include a blower for injecting the mixed gas of the second space into the inner space of the housing.

In one embodiment, the moisture supply device may further include a controller for adjusting a rotational speed of the blower or a power applied to the energy applying unit based on humidity information of the internal space of the housing provided from the humidity meter .

According to the balance apparatus of the present invention, the steam generated by the steam generator can be supplied to the interior of the housing together with air to remove the static electricity generated in the lower jig. Therefore, in a dry atmosphere, A measurement error caused by static electricity can be prevented.

1 is a perspective view for explaining a balance apparatus according to an embodiment of the present invention.
2 is a cross-sectional view of the scale device shown in Fig.
3 is a cross-sectional view for explaining an embodiment of the steam generator shown in FIG.

Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings. The present invention is capable of various modifications and various forms, and specific embodiments are illustrated in the drawings and described in detail in the text. It is to be understood, however, that the invention is not intended to be limited to the particular forms disclosed, but on the contrary, is intended to cover all modifications, equivalents, and alternatives falling within the spirit and scope of the invention.

The terms first, second, etc. may be used to describe various components, but the components should not be limited by the terms. The terms are used only for the purpose of distinguishing one component from another. For example, without departing from the scope of the present invention, the first component may be referred to as a second component, and similarly, the second component may also be referred to as a first component.

The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. The singular expressions include plural expressions unless the context clearly dictates otherwise. In the present application, the term " comprises " or " having ", etc. is intended to specify that there is a feature, step, operation, element, part or combination thereof described in the specification, , &Quot; an ", " an ", " an "

Unless defined otherwise, all terms used herein, including technical or scientific terms, have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. Terms such as those defined in commonly used dictionaries are to be interpreted as having a meaning consistent with the contextual meaning of the related art and are to be interpreted as either ideal or overly formal in the sense of the present application Do not.

FIG. 1 is a perspective view for explaining an apparatus for balancing according to an embodiment of the present invention, FIG. 2 is a cross-sectional view of the balance apparatus shown in FIG. 1, and FIG. 3 is an explanatory view of an embodiment of the water vapor generating apparatus shown in FIG. Fig.

1, 2 and 3, a balance apparatus 1000 according to an embodiment of the present invention includes a balance 1100, a housing 1200, a humidity meter 1300, and a moisture supply apparatus 1400 .

The balance 1100 can measure the mass or weight of the sample. If the mass or the weight of the sample can be measured, the kind of the scale 1100 is not particularly limited. For example, as the balance 1100, a known balance device such as a balance, a spring type balance, and an electric balance can be applied without limitation.

The housing 1200 may have an internal space in which the scale 1100 is received and may be formed of a transparent synthetic resin material such as acrylic resin or PET so that the inside of the housing 1200 can be observed from the outside. The shape and structure of the housing 1200 are not particularly limited as long as the balance 1100 can be received therein. In one embodiment, the housing 1200 may have a bottom open structure to facilitate installation of the balance 1100 or loading of the sample.

A work hole 1210 may be formed at one side of the housing 1200 to load a sample on a scale 1100 disposed inside the housing 1200. The hole 1210 may be formed of a non- Can be blocked with a radially-separated rubber membrane to minimize contamination. Two working holes 1210a and 1210b may be formed in the housing 1200 to introduce both hands of the user into the inner space of the housing 1200. [

A first water supply hole 1220 through which water vapor can be injected from the moisture supply device 1300 may be formed on the other side of the housing 1200.

The humidity meter 1300 may be coupled to the housing 1200 and measure the humidity of the internal space of the housing 1200. If the humidity of the internal space of the housing 1200 can be measured, the configuration of the humidity meter 1300 is not particularly limited and a known humidity meter may be applied without limitation.

The moisture supply device 1400 is coupled to the housing 1200 and may generate steam to supply the moisture to the inner space of the housing 1200.

In one embodiment, the moisture supply device 1400 may include a water vapor generator 1410, a filter 1420, a blower 1430, and a controller 1440.

The steam generator 1410 may include a mixing chamber 1411 and an energy applying means 1412.

The mixing chamber 1411 is coupled to the housing 1200 and can provide a space for accommodating water and a space for mixing water vapor generated from the water and externally supplied air. In one embodiment, as shown in FIG. 3, the mixing chamber 1411 may include a partition 1413 dividing the internal space into a first space and a second space, and the first space may contain water In the second space, water vapor and air supplied from the outside can be mixed. In this case, the partition 1413 may be provided with an opening 1413a for supplying steam generated in the first space to the second space. In order to form the space for receiving the water, the opening 1413a may be formed at a position spaced apart from the bottom of the mixing chamber 1411 by a predetermined distance.

A second steam supply hole 1411a corresponding to the first steam supply hole 1220 of the housing 1200 may be formed on the outer side wall of the mixing chamber 1411 forming the second space. In addition, an air inlet 1411b may be formed on an outer wall of the mixing chamber 1411 to form the second space to receive the air from the outside, and the air inlet 1411b may include an amount of air to be injected A control valve (not shown) may be provided. A water inlet 1411c for supplying water from the outside to the first space may be formed on the outer side wall of the mixing chamber 1411 forming the first space.

The energy application means 1412 is disposed inside the first space of the mixing chamber 1411 and can generate water vapor from the water by applying energy to the water. In one embodiment, the energy application means 1412 may generate heat or generate ultrasonic waves using electrical energy. For example, the energy application means 1412 may include a heating wire or an ultrasonic generator.

The filter 1420 is disposed to block the first water vapor supply hole 1220 of the housing 1200 to prevent external foreign matter from entering the internal space of the housing 1200. If the foreign matter can be filtered while passing through a mixed gas of air and water vapor, the material and construction of the filter 1420 are not particularly limited, and known filters can be applied without limitation. In one embodiment, the filter 1420 may be disposed between the first water vapor supply hole 1220 of the housing 1200 and the second water vapor supply hole 1411a of the mixing chamber 1411, And may be arranged to block the second water vapor supply hole 1411a in the mixing chamber 1411. [

The blower 1430 may be disposed inside or outside the mixing chamber 1411 and injects the mixed gas in the mixing chamber 1411 into the inner space of the housing 1200 via the filter 1420 can do. In one embodiment, the blower 1430 may be disposed within the second space of the mixing chamber 1411. If the gas inside the mixing chamber 1411 can be injected into the inner space of the housing 1200, the structure of the blower 1430 is not particularly limited.

The controller 1440 controls the amount of water vapor supplied to the inner space of the housing 1200 by adjusting the rotational speed of the blower 1430 or adjusting the power applied to the energy applying unit 1412. The controller 1440 controls the rotation speed of the blower 1430 or the energy applying unit 1412 based on the humidity information of the internal space of the housing 1200 provided from the humidity meter 1300. [ The applied power can be adjusted.

According to the balance apparatus of the present invention, the steam generated by the steam generator can be supplied to the interior of the housing together with air to remove the static electricity generated in the lower jig. Therefore, in a dry atmosphere, A measurement error caused by static electricity can be prevented.

It will be apparent to those skilled in the art that various modifications and variations can be made in the present invention without departing from the spirit or scope of the present invention as defined by the following claims. It can be understood that it is possible.

1000: Balance device 1100: Balance
1200: Housing 1300: Humidity meter
1400: Moisture supply device 1410: Water vapor generating device
1420: filter 1430: blower
1440:

Claims (9)

A housing having an inner space;
A balance disposed in the inner space of the housing and measuring the mass or weight of the sample;
A humidity meter coupled to the housing and measuring humidity of the interior space of the housing; And
And a moisture supply device coupled to the housing and supplying a mixed gas of water vapor and air into the internal space of the housing based on humidity information of the internal space provided by the humidity meter. The method according to claim 1,
Wherein the housing is provided with a work hole for loading a sample on the balance, and a radially separated rubber film is installed on the work hole. The method according to claim 1,
A first water vapor supply hole through which water vapor is injected from the moisture supply device is formed in the housing,
Wherein the moisture supply device is coupled to the housing and includes a first space for accommodating water and a second steam supply hole for mixing water vapor generated from the water and air supplied from the outside and corresponding to the first water supply hole A mixing chamber having a second space; And a water vapor generating device disposed inside the first space and including energy applying means for applying energy to the water to generate water vapor from the water. The method of claim 3,
Characterized in that the energy application means comprises a heating wire or an ultrasonic generator. The method of claim 3,
Wherein the mixing chamber includes an outer wall defining an inner space and a partition wall dividing the inner space into the first space and the second space,
Wherein the partition is provided with an opening for supplying steam generated in the first space to the second space. 6. The method of claim 5,
Wherein the mixing chamber comprises a water inlet for injecting water into the first space and an air inlet for connecting the second space with the external air injection device. The method of claim 3,
Wherein the moisture supply device further comprises a filter arranged to block the first water vapor supply hole of the housing to prevent external foreign matter from entering the internal space of the housing. The method of claim 3,
Wherein the moisture supply device further comprises a blower for injecting the mixed gas in the second space into the internal space of the housing. 9. The method of claim 8,
Wherein the humidity supplying device further comprises a controller for adjusting the rotational speed of the blower or the power applied to the energy applying part based on humidity information of the internal space of the housing provided from the humidity measuring device.

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