Electronic analytical balance for mass measurement

Abstract

The invention relates to the field of electronic weighing equipment. The invention further discloses an electronic analytical balance for mass measurement. The electronic analytical balance for mass measurement comprises an electronic analytical balance seat; five sealed glass doors are arranged at the top of the electronic analytical balance seat; a weighing linkage shaft for weighing transmission is arranged in the middle of the top end of the electronic analytical balance seat; the top of the weighing linkage shaft is fixedly connected with a tray located above the electronic analytical balance seat; and the bottom end of the weighing linkage shaft is connected with a weighing metering mechanism in the electronic analytical balance seat. The invention discloses an electronic analyticalbalance for mass measurement. An auxiliary supporting ring structure additionally linked with the tray is additionally arranged; by utilizing the semi-ring clamping plates on the two sides of the auxiliary supporting ring, a round-bottom flask or a test tube containing a liquid reagent can be conveniently clamped for mass measurement, the round-bottom flask and the liquid reagent do not need to betransferred to a beaker, and then the beaker is placed on a tray for mass measurement, so that the weighing steps of the liquid reagent are reduced, and the weighing efficiency of the liquid reagentis improved.

Description

technical field [0001] The invention relates to the field of electronic weighing equipment, in particular to an electronic analytical balance for mass measurement. Background technique [0002] The electronic analytical balance is a kind of electronic balance with high precision in mass determination. Its determination is accurate to 0.1 mg. At the same time, it uses the sensor technology, analog technology, digital electronic technology and microprocessor technology of the electronic balance. Automatic display, tare weight removal, automatic data output, automatic fault tracing, overload protection and other functions, electronic balances usually use electromagnetic force sensors (see load cells) to form a closed-loop automatic adjustment system with high accuracy and stability Well, due to the high measurement accuracy of the electronic analytical balance, it is commonly used for accurate weighing of laboratory reagents to understand the changes of each test product before...

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Problems solved by technology

[0004] Yet, because in the laboratory, chemical reagent has two kinds of states of solid and liquid, and existing electronic analytical balance is when weighing liquid reagent, because can't carry out chemical reaction before and after the round bottom flask and test tube that fill liquid reagent directly. Overall mass measurement, therefore, it is necessary to transfer the reagents in the round bottom flask or test tube to the flat bottom beaker, place the flat bottom beaker on the tray for mass measurement, and then transfer to the round bottom flask or test tube for mass measurement before and after chemical reaction, Increases the weighing steps of liquid reagents, resulting in inefficient weighing of liquid reagents, and losses during transfer of liquid reagents, which in turn leads to a decrease in the accuracy of liquid reagent quality determination results

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