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上海铁路局上海电务段为了便于沿线各通信工区进行通信设备的技术鉴定工作,研制成功了通信设备综合测试器。本仪器包括有振荡器、毫伏表、可变电阻箱、可变磨耗器、转电线卷、铃流发生器等多种设备,统一安装在一金属箱内,能满足一般通信设备的鉴定工作要求,有携带方便,使用简单,测量迅速等特点。一、仪器主要技术指标: 1.正弦波振荡频率:300～3,400赫±50％; 2.振荡器输出功率:>1.2奈; 3.失真度:<3％; 4.毫伏表测量范围:10毫伏～300伏; 5.毫伏表测量误差:<±5％; 6.铃流输出功率:>4瓦; 7.转电线卷平衡度:>8.4奈;
Shanghai Railway Bureau Shanghai Electricity Services Section In order to facilitate the communication work area along the line of technical appraisal, the successful development of a communications equipment tester. The instrument includes a variety of devices such as oscillator, millivoltmeter, variable resistance box, variable attritor, wire coil, ring current generator and so on, which can be installed in a metal box to meet the identification of general communication equipment Requirements, easy to carry, easy to use, rapid measurement and so on. First, the instrument main technical indicators: 1. Sine wave oscillation frequency: 300 ~ 3,400 Hz ± 50%; 2. Oscillator output power:> 1.2 Chennai; 3. Distortion: <3%; 4. Millivoltmeter measurement range: 10 millivolts to 300 volts; 5. Millivoltmeter measurement error: <± 5%; 6. Ring current output power:> 4 watts; 7. Wire roll balance degree:> 8.4 Chennai;