Analysis of several characteristics that should be paid attention to when using Electronic Balance

When designing and using an electronic balance, everyone should first consider the stability of the balance, the sensitivity of the balance, the accuracy of the balance and the invariance of the balance. The so-called stability refers to the balance precision of the stability.

Sensitivity refers to the balance of response reading speed, which has higher sensitivity than the mechanical balance of electronic balances in this respect; correctness refers to the accuracy of its readings; invariance refers to the stability of balance readings, and the reading floating range The smaller the floating range, the better the invariance.

1. The stability of the electronic balance:

The stability of an electronic balance is the ability of the balance to automatically return to its original equilibrium position after being disturbed. For electronic balances, the balance position is always indicated by an analog indication or a digital indication of the value to be displayed, so once the electronic balance exerts a momentary disturbance, although the indication has changed, but the disturbance is eliminated and the original value can be returned, then we call Electronic Balances are stable. For electronic balances, the balance stability of the balance can be used to determine the primary conditions, and the stability of the electronic balance without the balance cannot be used.

Second, the sensitivity of the electronic balance:

The sensitivity of the electronic balance is the ability of the electronic balance to detect the mass change of the object placed on the weighing pan of the balance. The sensitivity of electronic balances can be expressed by angular sensitivity, linear sensitivity, index sensitivity or digital (exponential) sensitivity. For electronic balances, mainly through graduation sensitivity, or digital sensitivity. The smaller the amount the balance can change from the perceived mass, the more sensitive the electronic balance can see the balance, the balance of the balance is still an important property that determines one of the advantages of the balance.

3. The correctness of the electronic balance:

The correctness of the electronic balance is the correctness of the balance indication, which indicates the ability of the balance indication to be close to the true value; from the perspective of error, the correctness of the balance is the degree of systematic error reflecting the balance indication.

Fourth, the invariance of the electronic balance indication:

The invariance of the indicated value of the electronic balance refers to the degree of consistency of the measurement results obtained when the balance measures the same object multiple times under the same conditions. For the electronic balance, there is still the invariance of the balance indication value, such as the control of the repeatability and reproducibility of the electronic balance, the control of the zero position and return error of the electronic balance, and the electronic balance when it is empty or loaded. Time electronic balance indication drift control.