What is the precision of the automatic weighing machine (net weight selection machine)?
What is the precision of the automatic weighing machine (net weight selection machine)? Under the same standard, use the same test product to continuously test on the net weight scale. If the total number of tests is sufficient, it will show a standard normal distribution curve (also known as a Gaussian curve). In the standard normal distribution, σ means the relative standard deviation (STDDEV), and μ means the mean net weight. Generally, the precision of the net weight scale is defined by ±3σ (±3 times the standard deviation), that is, the probability that the net weight of all the test samples is scattered in (μ-3σ, μ+3σ) is 0.9974, and the detected net weight value is basically Centralized in the (μ-3σ, μ+3σ) section, the probability of exceeding this category is less than 0.3%. To put it simply, the test is 1000 times, and the number is allowed to pass up to 3 times. For a given commodity, under certain inspection standards, the smaller the relative standard deviation value, the higher the dynamic precision of the inspection scale. However, the dynamic precision must be established under the precondition of the given product, the given inspection standard, and the given precision definition method. Automatic weighing machine, online checkweigher machine, weight sorting machine with scale, electronic scale, food, hardware, skin care products, protective mask, medicine packaging and printing instructions, micro-hot pot bottom material, dumpling noodles exceeding net weight inspection, missing parts inspection, net weight classification.
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