Basic knowledge of the hottest electronic scale
2022-10-22- Detail
Basic knowledge of electronic scales
part I workflow description:
2. Inspection methodwhen the object is placed on the scale, the pressure is applied to the sensor, and the sensor deforms, so that the impedance changes. At the same time, the excitation voltage changes, and a changed simulation signal is output. The signal is amplified and output to the analog-to-digital converter by the amplification circuit. After being converted into digital signals that are easy to process, complex data analysis can be carried out and output to CPU operation control. The CPU outputs this result to the display according to keyboard commands and programs. Until this result is displayed
Part II Classification of scales:
1 According to the principle: electronic scale, mechanical scale, electromechanical scale
2 By function: counting scale, pricing scale, weighing scale
3 According to the purpose: industrial scale, commercial scale, special scale
Part III: types of scales:
1 Desktop scale refers to an electronic scale with a full weighing of less than 30kg
2 Platform scale refers to the electronic scale whose full weight is within kg
3 Weighbridge refers to an electronic scale with a full weight of more than 300kg
4 Precision balance
the fourth part is classified by accuracy:
level I: special balance precision ≥ 1/100000
level II: high-precision balance 1/10000 ≤ precision <1/100000
level III: medium precision balance 1/1000 ≤ precision <1/10000
level IV: ordinary scale 1/100 ≤ precision <1/1000
Part V professional terms:
1 Maximum weighing: the maximum load that can be weighed by an electronic scale without tare weight
2. Minimum weighing: a relative error that will appear when an electronic scale is lower than this value
3. Safe load: 120% normal weighing range
4. Rated load EU assesses the safety load of general plastic recycling process in food contact materials: normal weighing range
5. Allowable error: personalized customization of grade inspection will inevitably lead to the fragmentation of orders, and the maximum allowable deviation of timing
6. Sensitivity: the minimum scale that can be displayed by an electronic scale; It is usually represented by "d"
7. Resolution: the smallest scale that can be distinguished by an electronic scale with counting function
8. Resolution: an electronic scale with counting function, a parameter with internal resolution ability
9. Preheating time: the time taken for a scale to reach various indicators
10. Accuracy: the ratio of the sensing quantity to the full scale quantity
11. The ambient temperature of the electronic scale is: -10 ℃ to 40 ℃
12 Table size of platform scale: 25cm x 30cm 30cm x 40cm 40cm x 50cm 42cm x 52cm 45cm x 60cm (end)
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