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笔者对中学物理电学实验室装备配置不足的情况作了一些研究并提出了一些改进意见,希望对需改建或新建物理实验室的学校起到一定的借鉴作用。一、中学物理电学实验室装备配置的不足1.科学性方面。中学物理电学实验室每张实验桌上一般配有学生电源1台,一开五孔220 V 电源插座2个,电流表、电压表、灵敏电流计各2台,有的还配有学生用万用表1台。我们知道仪器的保管要注意“三防”(防尘、防潮、防阳光直射)。灰尘附在仪器上会影响仪器美观,使仪器性能变坏;灰尘附在电子仪器内的电路板上,易使电路板在发潮时绝缘性能下降,引起短路。水蒸气会在各种仪器表
The author made some research on the equipment configuration of the physical electrical laboratory in secondary schools and put forward some suggestions for improvement, hoping to play a reference role for schools that need to reconstruct or build new physical laboratories. First, the shortage of equipment configuration in the physical electrical laboratory in secondary schools 1. Scientific aspects. Each experimental laboratory of the middle school physical electricity science laboratory is equipped with 1 student power supply, 1 open five-hole 220 V power socket, 2 ammeters, voltmeter and sensitive ammeter, and some also have a student multimeter 1 station. We know that the custody of the instrument should pay attention to “three defenses” (dust-proof, moisture-proof, and direct sunlight). Dust attached to the instrument will affect the appearance of the instrument and cause the instrument performance to deteriorate. The dust is attached to the circuit board in the electronic instrument, which easily causes the circuit board to lose its insulation performance during the damp and cause a short circuit. Water vapor will be on various instruments