规格书中的 div 是什么意思？

中文概述：本文解释示波器规格中"div"（格）的含义，并给出直流增益精度的计算示例。原文如下。

Q: What does "div" mean in the specifications?

A: For most SIGLENT specifications, "div" equals the Vertical Scale value (commonly shown in Volts/div). Take the DC Gain Accuracy of a SIGLENT SDS1052DL+. For ranges ≤ 100 mV/div, the DC Gain Accuracy is:

± [3% × (|reading| + |offset|) + 1% × |offset| + 0.2 × div + 2 mV]

Example: Reading = 0.5 V, Offset = 0.1 V, Vertical scale (div) = 100 mV/div = 0.1 V/div:

• 0.2 × div = 0.2 × 0.1 V = 0.02 V
• 3% × (0.5 + 0.1) = 0.018 V
• 1% × 0.1 = 0.001 V
• Plus 2 mV = 0.002 V

Total = 0.018 + 0.0001 + 0.02 + 0.002 ≈ 0.0401 V