YB-2811 数字电桥是一款高性能的电子测量仪器，广泛应用于电子元件、电路设计及科研领域。该设备能够自动测量电感（L）、电容（C）、电阻（R）、品质因数（Q）和损耗角正切值（D）等参数，基本精度达到 0.25%，并配备 8 位数字显示。其测量频率范围涵盖 100Hz、1kHz 和 10kHz，能够满足多种测试需求。YB-2811 数字电桥还具备自动切换量程功能，主参量 L、C、R 由五位数字显示，副参量 Q、D 由三位数字显示。

在设计方面，YB-2811 数字电桥配备了电容带电冲击保护电路，当被测电容带电时，可有效防止仪器损坏。此外，该设备的测试信号电平为 0.3Vrms±10%（空载），测试速度可达 5 次/秒。其工作环境温度范围为 0°C 至 40°C，湿度不超过 85% RH。物理特性方面，YB-2811 数字电桥的电压要求为 220V±10%，频率为 50Hz±5%，功耗小于 40W。外形尺寸为 100H×300W×310D（mm），重量约为 3.3kg。

The YB-2811 Digital Bridge is a high-performance electronic measuring instrument widely used in electronic components, circuit design, and scientific research. This device can automatically measure parameters such as inductance (L), capacitance (C), resistance (R), quality factor (Q), and dissipation factor (D) with a basic accuracy of 0.25% and an 8-digit display. The measurement frequency range covers 100Hz, 1kHz, and 10kHz, meeting various testing requirements. The YB-2811 Digital Bridge also features automatic range switching, with five-digit display for main parameters L, C, and R, and three-digit display for secondary parameters Q and D.

In terms of design, the YB-2811 Digital Bridge is equipped with a capacitor discharge protection circuit, which can effectively prevent instrument damage when the measured capacitor is charged. Additionally, the device has a test signal level of 0.3Vrms±10% (open circuit) and a test speed of up to 5 times per second. The working environment temperature range is 0°C to 40°C, with a humidity of no more than 85% RH. In terms of physical characteristics, the YB-2811 Digital Bridge requires a voltage of 220V±10%, a frequency of 50Hz±5%, and has a power consumption of less than 40W. The dimensions are 100H×300W×310D (mm), and the weight is approximately 3.3kg.