JP4849780B2 - Measuring method using balance with windshield and balance with windshield - Google Patents

Measuring method using balance with windshield and balance with windshield Download PDF

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JP4849780B2
JP4849780B2 JP2004166475A JP2004166475A JP4849780B2 JP 4849780 B2 JP4849780 B2 JP 4849780B2 JP 2004166475 A JP2004166475 A JP 2004166475A JP 2004166475 A JP2004166475 A JP 2004166475A JP 4849780 B2 JP4849780 B2 JP 4849780B2
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weighing
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俊明 植木
正弘 齊藤
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株式会社海洋先端技術研究所
協栄電子株式会社
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本発明は、同一風防内に複数の天秤または秤量皿を配置した計量方法および風防付き天秤に関するものである。   The present invention relates to a weighing method in which a plurality of balances or weighing pans are arranged in the same windshield, and a balance with a windshield.

電子天秤を用いて重量を正確に計測しようとすると、電子天秤の傾き、温度や湿度の変化、振動をはじめ、様々な測定環境が影響するため、これを排除あるいは整備することが要求される。その一つに電子天秤周囲の空気の動き（流れ）が、測定結果に大きな影響を及ぼすことは、周知のところである。
このため電子天秤の秤量皿（被測定物を乗せるための皿で、計量皿とも言う。）の周囲を、開閉可能な扉を持つ密閉空間で取り囲み、外部との空気を遮断してその動きの影響を防ぎ、やがて内部の空気の動きが治まり重量表示が安定した段階で、正確な重量計測が行われている。これが一般的に電子天秤の付属品として使用されている風防である。
風防を備えた天秤に関する公知文献としては特許文献１〜特許文献５等があり、そのうち、特許文献１〜４は風防そのものの構成に関するものである。 If an electronic balance is used to accurately measure the weight, various measuring environments such as the inclination of the electronic balance, changes in temperature and humidity, and vibrations are affected. Therefore, it is necessary to eliminate or maintain this. For example, it is well known that the movement (flow) of air around the electronic balance has a great influence on the measurement result.
For this reason, the weighing pan of the electronic balance (a pan for placing an object to be measured, also called a weighing pan) is surrounded by a sealed space with an openable / closable door, shutting off air from the outside, Accurate weight measurement is performed at the stage where the influence of the air is prevented and the movement of the internal air is finally stopped and the weight display is stabilized. This is a windshield generally used as an accessory of an electronic balance.
Known documents related to a balance equipped with a windshield include Patent Documents 1 to 5, and Patent Documents 1 to 4 relate to the configuration of the windshield itself.

ところで、何らかの測定原理により複数台の電子天秤を用いて、同一条件下で、同時に、重量計測を正確に行う必要がある場合、個々の電子天秤に付属した風防を利用して測定すると、風防内で舞う（対流する）空気の性質やその動き、治まり方の違い、治まるまでの時間差等、様々な要素が測定結果に大きな影響を及ぼすため、風防としての目的を達し得ない。
そこで、測定精度を向上させるものとして、特許文献５のように複数台の電子天秤を用いたものが知られている。すなわち、動揺のある物体上で精密な重量計測ができる動揺補正装置を備えた重量計測装置を提供するために、特許文献５に開示されている装置では、対象物の重量を計測する電子天秤と、動揺による電子天秤の計測値を補正する動揺補正装置とを備えている。動揺補正装置は、既知の重量ｍ0を直接計測するダミー天秤と、電子天秤とダミー天秤の計測重量ＦXとＦ0から真の重量ｍXを算出する演算器とからなり、この演算器により、ｍX＝（ＦX／Ｆ0）×ｍ0として重量ｍXを算出するものである。
実公平６−２０１１２号公報 実公平６−３５１４５号公報 実公平７−２５６３７号公報 実開平５−３０７３８号公報 特開平１１−１３２８３６号公報 By the way, if it is necessary to accurately measure the weight simultaneously under the same conditions using multiple electronic balances according to some measurement principle, if the windshield attached to each electronic balance is used, Because the various factors such as the nature of the air that circulates (convects), its movement, the way of healing, the time difference until healing, etc. have a great influence on the measurement results, the purpose as a windshield cannot be achieved.
Therefore, as a technique for improving measurement accuracy, a technique using a plurality of electronic balances as in Patent Document 5 is known. That is, in order to provide a weight measuring device including a shake correction device that can accurately measure a weight on a shaking object, the device disclosed in Patent Document 5 includes an electronic balance for measuring the weight of an object, And a shake correction device for correcting the measurement value of the electronic balance due to the shake. The shake correction device includes a dummy balance that directly measures the known weight m 0 , and an electronic balance and a calculator that calculates the true weight m X from the measured weights F X and F 0 of the dummy balance. , M X = (F X / F 0 ) × m 0 to calculate the weight m X.
Japanese Utility Model Publication No. 6-20112 No. 6-35145 No. 7-25637 Japanese Utility Model Publication No. 530738 JP-A-11-132936

上記のように、風防を備えた電子天秤や、複数台の電子天秤を備えたものは存在するが、しかし、従来のものは、風防を備えた電子天秤は被測定物を個々に測定することを前提としている。仮に風防を備えた電子天秤を複数台同時に使用しようとしても、風防内の空気の動きが収斂するまでの時間に大きなバラツキが生じ、同時測定が可能であっても全ての風防内の空気が収斂するまでに長い時間が必要となり、正確さが損なわれるだけでなく計測効率も悪くなっている。また、
特許文献５に開示される複数台の電子天秤を備えたものにおいては、各電子天秤周囲の空気の動き（流れ）をはじめとする様々な測定環境がそれら電子天秤に及ぼす影響については何ら言及していない。 As described above, there are electronic balances equipped with windshields and those equipped with multiple electronic balances. However, conventional electronic balances equipped with windshields measure objects to be measured individually. Is assumed. Even if you try to use multiple electronic balances equipped with windshields at the same time, there will be large variations in the time until the air movement in the windshield converges, and even if simultaneous measurement is possible, all the air in the windshield will converge. This requires a long time, which not only impairs accuracy but also reduces measurement efficiency. Also,
In the thing provided with the multiple electronic balances disclosed by patent document 5, what kind of influence the various measurement environments including the movement (flow) of the air around each electronic balance have on these electronic balances is mentioned? Not.

本発明は、上記課題を解決し、何らかの測定原理により複数台の電子天秤を用いて、同一条件下で、同時に、重量計測を正確に行う必要がある場合でも、電子天秤周囲の様々な影響を受けずに正確に測定できる測定方法及びその測定方法を用いた装置を提供することを目的としている。   The present invention solves the above-mentioned problems and uses various electronic balances based on some measurement principle, even when it is necessary to accurately measure the weight simultaneously under the same conditions. It is an object of the present invention to provide a measurement method that can accurately measure without receiving, and an apparatus using the measurement method.

本発明の第１は、秤量皿を有する電子天秤を複数用い、少なくとも１個の電子天秤を既知の重量物計量用とし、少なくとも１個の電子天秤を未知の被測定物計量用として被測定物を計量するものにおいて、
既知の重量物計量用の電子天秤と未知の被測定物計量用の電子天秤を、開放可能な扉を有する共通の風防内に収納し、計量時には風防の扉を閉じた状態で計量を行うことを特徴としたものである。 In the first aspect of the present invention, a plurality of electronic balances having weighing pans are used, at least one electronic balance is used for measuring a known heavy object, and at least one electronic balance is used for measuring an unknown object. In what weigh
An electronic balance for measuring a known heavy object and an electronic balance for measuring an unknown object to be measured are housed in a common windshield having an openable door, and the measurement is performed with the windshield door closed during measurement. It is characterized by.

本発明の第２は、前記共通の風防内に収納する既知の重量物用秤量皿と未知の被測定物用秤量皿の数を、未知の被測定物用秤量皿１個に対し、既知の重量物用秤量皿を複数にして計量を行うことを特徴としたものである。 In the second aspect of the present invention, the number of known weighing object weighing dishes and unknown weighing object weighing dishes housed in the common windshield is determined for one unknown weighing object weighing dish. It is characterized by weighing with a plurality of weighing pans for heavy objects .

本発明の第３は、前記電子天秤にての計量結果は、パソコンに導入されてパソコンの表示部にて表示することを特徴としたものである。 A third aspect of the present invention is characterized in that a measurement result obtained by the electronic balance is introduced into a personal computer and displayed on a display unit of the personal computer .

本発明の第４は、秤量皿を有する電子天秤を複数用い、少なくとも１個の電子天秤を既知の重量物計量用とし、少なくとも１個の電子天秤を未知の被測定物計量用として被測定物を計量するものにおいて、
既知の重量物計量用の電子天秤と未知の被測定物計量用の電子天秤を、開放可能な扉を有する共通の風防内に収納し、計量時には風防の扉を閉じた状態で計量するよう構成したことを特徴としたものである。
According to a fourth aspect of the present invention, a plurality of electronic balances having weighing pans are used, at least one electronic balance is used for measuring a known heavy object, and at least one electronic balance is used for measuring an unknown object. In what weigh
An electronic balance for measuring a known heavy object and an electronic balance for measuring an unknown object to be measured are housed in a common windshield having an openable door, and the measurement is performed with the windshield door closed during measurement. is obtained is characterized in that the.

本発明の第５は、前記共通の風防内には、既知の重量物用秤量皿と未知の被測定物用秤量皿のみを収納し、この風防を電子天秤本体に取付けて構成したことを特徴としたものである。 According to a fifth aspect of the present invention, the common windshield is configured such that only a known weighing object weighing dish and an unknown weighing object weighing dish are accommodated, and this draft shield is attached to the electronic balance body. It is what.

本発明の第６は、前記共通の風防内に収納した既知の重量物用秤量皿と未知の被測定物用秤量皿は、未知の被測定物用秤量皿１個に対し、既知の重量物用秤量皿を２個以上の複数であることを特徴としたものである。 According to a sixth aspect of the present invention, a known weighing object weighing dish and an unknown measuring object weighing dish housed in the common windshield are each a known weighing object for one unknown measuring object weighing dish. It is characterized in that there are two or more weighing pans .

本発明の第７は、前記共通の風防内に収納する既知の重量物用秤量皿と未知の被測定物用秤量皿は、未知の被測定物用秤量皿を既知の重量物用秤量皿にて囲繞するように配置したことを特徴としたものである。 According to a seventh aspect of the present invention, the known weighing object weighing dish and the unknown weighing object weighing dish housed in the common windshield are the unknown weighing object weighing dish and the known weighing object weighing dish. It is characterized by being arranged so as to surround .

以上のとおり、本発明によれば、電子天秤が、外部の空気の動きから遮断されるとともに、どの電子天秤（または秤量皿）も同じ性質の空気、つまり風防内環境条件下に置かれるので、風防内空気の動きの収斂もほぼ同時に行われる。その結果、従来の風防付き電子天秤を複数台使用する場合よりも格段に計測の正確さが向上するものである。
更に、従来の風防付き電子天秤を複数台同時に使用しようとしても、風防内空気の動きの収斂にバラツキがあり、全てが安定するのに時間がかかったが、本発明によれば同一風防内の環境なのでそのようなバラツキもなく、計測時間の短縮に寄与するものである。
また、本発明では、如何なる測定原理のものでも複数台の電子天秤を用いて、同一条件下で、しかも同時に、重量計測を正確に行う必要がある場合でも、電子天秤周囲の様々な影響を受けずに正確に測定できるものである。 As described above, according to the present invention, the electronic balance is cut off from the movement of the external air, and any electronic balance (or weighing pan) is placed under the same condition of air, that is, the environmental condition in the windshield. The movement of the air in the windshield is also converged almost simultaneously. As a result, the accuracy of measurement is greatly improved as compared with the case where a plurality of conventional electronic balances with windshields are used.
Furthermore, even when trying to use a plurality of conventional electronic balances with windshields at the same time, there was variation in the movement of the air in the windshield, and it took time for all to stabilize. Since it is an environment, there is no such variation and it contributes to shortening of measurement time.
Further, according to the present invention, even if it is necessary to accurately measure the weight under the same conditions using a plurality of electronic balances regardless of the measurement principle, they are affected by various influences around the electronic balance. Without being able to measure accurately.

図１は、本発明の実施例を示す概略構成図を示したものである。１は風防で、この風防１は、少なくともその１面部をガラスやプラスチック等の透明な板状部材を用いた立方体形状に形成され、その風防内には２個の電子天秤２，５が配置されている。各電子天秤２，５は、それぞれ天秤皿３，６及び表示部４，７を有しており、何れか一方の電子天秤，例えば電子天秤２が既知の重量物を測定する参照天秤となり、他方の電子天秤５が未知の被測定物を測定する測定天秤となっている。
なお、風防１は、図２（ａ）〜（ｃ）で示すような既知の構成となっている。すなわち、図２（ａ）は立方体形状の正面部材が扉１ａとなってガイドに沿って上下方に開閉される構造となっている。図２（ｂ）は正面部材１ｂ，１ｃがガイドに沿って左右に開閉されるよう構成され、また、図２（ｃ）のものは、正面部材が扉１ｄとなって蝶番等を介して下部より上部に向かって開けられるような構造となっている。風防構造については、正面扉のみの開閉ではなく、側面の開閉や上面の開閉等何れの手段による開閉構造であってもよい。 FIG. 1 is a schematic configuration diagram showing an embodiment of the present invention. 1 is a windshield, and this windshield 1 is formed in a cubic shape using a transparent plate-like member such as glass or plastic on at least one surface portion, and two electronic balances 2 and 5 are arranged in the windshield. ing. Each of the electronic balances 2 and 5 has a weighing pan 3 and 6 and a display unit 4 and 7, respectively, and any one of the electronic balances, for example, the electronic balance 2 becomes a reference balance for measuring a known heavy object, and the other The electronic balance 5 is a measurement balance for measuring an unknown object to be measured.
The windshield 1 has a known configuration as shown in FIGS. That is, FIG. 2A shows a structure in which a cube-shaped front member is a door 1a and is opened and closed along the guide. 2 (b) is configured such that the front members 1b and 1c are opened and closed along the guide to the left and right. In FIG. 2 (c), the front member is the door 1d and the lower part is placed via a hinge or the like. It has a structure that can be opened toward the top. The windshield structure may be an opening / closing structure by any means such as opening / closing of the side surface and opening / closing of the upper surface, instead of opening / closing only the front door.

以上のように構成された本発明において、電子天秤２に既知の重量物を載置した状態で電子天秤５の秤量皿６上に被測定物を乗せる場合には、図２（ａ）〜（ｃ）に示すような構造となっている扉を開けて行う。
測定にあたっては、一般的な風防付き電子天秤と同様に、測定時には風防扉を閉め、風防内部の空気の動きが治まって各々の電子天秤の重量表示が安定した段階で重量計測を行う。
本実施例によれば、一つの風防１内に、何らかの測定原理よりなる複数台の電子天秤２，５を収納し、同一条件下で、同時に、重量計測を正確に行うことができるので、電子天秤の傾き、温度や湿度の変化、及び振動等電子天秤周囲の様々な影響を受けることなく正確に測定することができる。
なお本実施例では、風防形状については立方体形状のものを用いて説明したが、風防の形状はこれに限られるものではなく、例えば特許文献２に開示されているような円筒状のものでも良く、その他ドーム状の形状等でも良いことは言うまでもない。 In the present invention configured as described above, when placing an object to be measured on the weighing pan 6 of the electronic balance 5 with a known heavy object placed on the electronic balance 2, FIGS. c) Open the door as shown in the structure.
In measurement, like a general electronic balance with a windshield, the windshield door is closed at the time of measurement, and the weight measurement of each electronic balance is performed after the movement of the air inside the windshield is stabilized and the weight display of each electronic balance is stabilized.
According to the present embodiment, a plurality of electronic balances 2 and 5 having a certain measurement principle are accommodated in one windshield 1, and weight measurement can be accurately performed simultaneously under the same conditions. Accurate measurement can be performed without being affected by various influences around the electronic balance, such as the inclination of the balance, changes in temperature and humidity, and vibration.
In the present embodiment, the windshield shape has been described using a cubic shape, but the shape of the windshield is not limited to this, and may be a cylindrical shape as disclosed in Patent Document 2, for example. Needless to say, other dome shapes may be used.

次に、他の実施例について図３〜５を用いて説明する。図１では、風防にて電子天秤の本体全てを覆った形状であったが、本実施例は、図３及び図４に示すように、主として電子天秤を構成する複数個の秤量皿の部分を風防によって被覆したものである。
すなわち、図３において、１１は電子天秤本体、１２は既知の重量物を載置する秤量皿、１３は被測定物を載置する秤量皿で、これら２個の秤量皿１２，１３は
電子天秤本体１１を共通のベースとして任意間隔を有して配設されている。したがって、電子天秤本体１１は、電磁式等の計量原理に基づくもので、２個の秤量皿１２，１３に乗せられた重量物を同時測定するか、若しくは図示省略された切換スイッチを介して個別に測定するための測定演算部や補正手段等、測定のために必要とする要素が収納されている。測定結果は電子天秤本体１１の任意部分に配設された表示部１４に表示される。１５は風防で、この風防１５は２個の秤量皿１２，１３を被覆して電子天秤本体上に取り付けられる。勿論、この風防１５の一部には、秤量皿への重量物の出し入れを可能とするための開閉部分が設けられている。
なお、この表示部１４は必ずしも必要とはしない。その場合、電子天秤本体１１の一部にインターフェースを設け、このインターフェースを介して外部のパソコン等に接続して所定の演算処理を行った後、その結果をパソコンのディスプレイ上に表示するようにしても良い。 Next, another embodiment will be described with reference to FIGS. In FIG. 1, it was the shape which covered the main body of the electronic balance with the windshield. However, in this embodiment, as shown in FIGS. 3 and 4, the portions of the plurality of weighing pans mainly constituting the electronic balance are mainly used. It is covered with a windshield.
3, 11 is an electronic balance body, 12 is a weighing pan on which a known heavy object is placed, 13 is a weighing dish on which an object to be measured is placed, and these two weighing dishes 12 and 13 are electronic balances. The main body 11 is disposed with an arbitrary interval with a common base. Therefore, the electronic balance main body 11 is based on a measuring principle such as an electromagnetic type, and measures the heavy objects placed on the two weighing pans 12 and 13 at the same time or individually through a change-over switch not shown. The elements required for measurement, such as a measurement calculation unit and correction means for measuring, are stored. The measurement result is displayed on the display unit 14 disposed in an arbitrary part of the electronic balance body 11. Reference numeral 15 denotes a windshield. The windshield 15 covers two weighing dishes 12 and 13 and is mounted on the electronic balance body. Of course, a part of the windshield 15 is provided with an opening / closing part for enabling a heavy object to be taken in and out of the weighing pan.
The display unit 14 is not always necessary. In that case, an interface is provided in a part of the electronic balance main body 11, and after connecting to an external personal computer or the like via this interface and performing a predetermined arithmetic processing, the result is displayed on the display of the personal computer. Also good.

図４は、図３の変形例を示したもので、共通の風防内に２個以上の秤量皿を収納したものである。前述した式に基づいて計量する場合には、既知重量物用秤量皿と未知の被測定物用秤量皿との共通風防内への収納構成比は問わないが、図４では、例として、風防１５内に配置される秤量皿１２を、未知の重量物測定用の秤量皿１３を囲んで１２ａ〜１２ｎ（ここでは、１２ａ〜１２ｈの８個）を配置したものである。この配置パターンは同図のようにマトリックス状であってもよく、また、図５で示すように、その中心部に未知の試料を乗せる秤量皿１３を配置し、その円周上に既知の重量物を乗せる秤量皿１２ａ〜１２ｈを配置してもよく、秤量皿１２，１３の各個数や配置パターンは適宜選択される。
この様に配置することによって、電子天秤が置かれた環境から受ける影響、例えば、あらゆる方向の動揺や傾きの影響の排除、あるいは整備することが可能となる。さらに、風防を備えているのであらゆる方向の空気の動き等からの影響を排除あるいは整備することが可能となる。
計量時には、中心の秤量皿に未知の試料を乗せ、円周上に配置された複数の秤量皿には同一重量のおもりを乗せることが考えられる。このようにすることによって、動揺する物体の上で被測定物の重量を外部環境の影響を受けることなく正確に計量できる。
各実施例における秤量皿（または電子天秤）の配置は、排除あるいは整備したい外部環境の影響の種類によって最適な測定原理とともに適宜選択される。
FIG. 4 shows a modification of FIG. 3, in which two or more weighing pans are accommodated in a common windshield. In the case of weighing based on the above-described formula, the storage constitution ratio of the known weight weighing pan and the unknown object weighing pan in the common windshield does not matter, but in FIG. The weighing pan 12 disposed in the 15 is a plate in which 12a to 12n (here, 8 pieces of 12a to 12h) are disposed so as to surround the weighing pan 13 for unknown weight measurement. This arrangement pattern may be in the form of a matrix as shown in the figure, and as shown in FIG. 5, a weighing pan 13 on which an unknown sample is placed is placed at the center, and a known weight is placed on the circumference. The weighing pans 12a to 12h on which the objects are placed may be arranged, and the number and arrangement pattern of the weighing pans 12 and 13 are appropriately selected.
By arranging in this way, it is possible to eliminate or maintain the influence from the environment in which the electronic balance is placed, for example, the influence of shaking and tilting in all directions. Further, since the windshield is provided, it is possible to eliminate or maintain the influence of air movement in all directions.
At the time of weighing, it is conceivable to place an unknown sample on the central weighing pan and to place a weight of the same weight on a plurality of weighing pans arranged on the circumference. By doing so, the weight of the object to be measured can be accurately measured on the moving object without being influenced by the external environment.
The arrangement of the weighing pan (or electronic balance) in each embodiment is appropriately selected along with the optimum measurement principle depending on the type of influence of the external environment to be eliminated or maintained .

本発明の実施形態を示す概略構成図。The schematic block diagram which shows embodiment of this invention. 風防の扉の開閉説明図で、（ａ）は上下ガイド方式、（ｂ）は左右ガ イド方式、（ｃ）は蝶番方式Opening and closing explanatory diagrams of the windshield door, (a) up and down guide system, (b) left and right guide system, (c) hinge system 本発明の他の実施形態を示す概略構成図。The schematic block diagram which shows other embodiment of this invention. 本発明の他の実施形態を示す概略構成図。The schematic block diagram which shows other embodiment of this invention. 秤量皿の配置パターン図。The arrangement pattern figure of a weighing pan.

符号の説明Explanation of symbols

１，１５…風防
２…電子天秤（既知用）
３，１２…秤量皿（既知用）
４，７，１４…表示部
５…電子天秤（未知用）
６，１３…秤量皿（未知用）
１１…電子天秤本体
1, 15 ... Windshield
2. Electronic balance (for known use)
3,12 ... Weighing pan (for known use)
4, 7, 14 ... display section
5 ... Electronic balance (for unknown)
6,13 ... Weighing pan (for unknown)
11 ... Electronic scale body

Claims (7)

秤量皿を有する電子天秤を複数用い、少なくとも１個の電子天秤を
既知の重量物計量用とし、少なくとも１個の電子天秤を未知の被測定物計量用として被測定物を計量するものにおいて、
既知の重量物計量用の電子天秤と未知の被測定物計量用の電子天秤を、開放可能な扉を有する共通の風防内に収納し、計量時には風防の扉を閉じた状態で計量を行うことを特徴とした風防付き天秤による計量方法。 In using a plurality of electronic balances having weighing pans, measuring at least one electronic balance for measuring a known weight object, and measuring at least one electronic balance for measuring an unknown object,
An electronic balance for measuring a known heavy object and an electronic balance for measuring an unknown object to be measured are housed in a common windshield having an openable door, and the measurement is performed with the windshield door closed during measurement. A weighing method using a balance with a draft shield. 前記共通の風防内に収納する既知の重量物用秤量皿と未知の被測定物用秤量皿の数を、未知の被測定物用秤量皿１個に対し、既知の重量物用秤量皿を複数にして計量を行うことを特徴とした請求項１記載の風防付き天秤による計量方法。 The number of known weighing pans and unknown weighing pans to be stored in the common windshield is equal to the number of known weighing pans for one unknown weighing pan. The weighing method according to claim 1, wherein weighing is carried out as described above. 前記電子天秤にての計量結果は、パソコンに導入されてパソコンの表示部にて表示することを特徴とした請求項１又は２記載の風防付き天秤による計量方法。 3. The measuring method using a balance with a windshield according to claim 1, wherein the result of measurement by the electronic balance is introduced into a personal computer and displayed on a display unit of the personal computer. 秤量皿を有する電子天秤を複数用い、少なくとも１個の電子天秤を
既知の重量物計量用とし、少なくとも１個の電子天秤を未知の被測定物計量用として被測定物を計量するものにおいて、
既知の重量物計量用の電子天秤と未知の被測定物計量用の電子天秤を、開放可能な扉を有する共通の風防内に収納し、計量時には風防の扉を閉じた状態で計量するよう構成したことを特徴とした風防付き天秤。 In using a plurality of electronic balances having weighing pans, measuring at least one electronic balance for measuring a known weight object, and measuring at least one electronic balance for measuring an unknown object,
An electronic balance for measuring a known heavy object and an electronic balance for measuring an unknown object to be measured are housed in a common windshield having an openable door, and the measurement is performed with the windshield door closed during measurement. windshield with a balance that is characterized in that it was. 前記共通の風防内には、既知の重量物用秤量皿と未知の被測定物用秤量皿のみを収納し、この風防を電子天秤本体に取付けて構成したことを特徴とした請求項４記載の風防付き天秤。 5. The common windshield includes only a known weight weighing pan and an unknown weighing pan for measurement, and the windshield is attached to an electronic balance main body. Balance with windshield. 前記共通の風防内に収納した既知の重量物用秤量皿と未知の被測定物用秤量皿は、未知の被測定物用秤量皿１個に対し、既知の重量物用秤量皿は２個以上の複数であることを特徴とした請求項４又は５記載の風防付き天秤。 There are two or more known weighing pans for a known weighing object and one weighing pan for an unknown measuring object stored in the common windshield. The balance with a windshield according to claim 4, wherein the balance is a plurality. 前記共通の風防内に収納する既知の重量物用秤量皿と未知の被測定物用秤量皿は、未知の被測定物用秤量皿を既知の重量物用秤量皿にて囲繞するように配置したことを特徴とした請求項４又は５記載の風防付き天秤。 The known weighing object weighing pan and the unknown weighing object weighing dish housed in the common windshield are arranged so that the unknown weighing object weighing dish is surrounded by the known weighing object weighing dish. The balance with a windshield according to claim 4 or 5, characterized in that.
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ITMI20150570A1 (en) * 2015-04-21 2016-10-21 Ima Spa METHOD FOR WEIGHING CONTAINERS OF PHARMACEUTICAL, MEDICAL, FOOD OR SIMILAR SUBSTANCES
CN118392284B (en) * 2024-07-01 2024-09-10 山东智永化工产业技术研究院有限公司 Multifunctional electronic balance for chemical production

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