ABB 81943A041-1 欧美进口放大器

ABB 81943A041-1 欧美进口放大器

产品描述

单端放大器的输出级由—只放大元件(或多只元件但并联成一组)完成对信号正负两个半周的放大。单端放大机器只能采取甲类工作状态。

热丝具有电阻随温度变化的特性。当有一恒定直流电通过热导池时，热丝被加热。由于载气的热传导作用使热丝的一部分热量被载气带走，一部分传给池体。当热丝产生的热量与散失热量达到平衡时，热丝温度就稳定在一定数值。此时，热丝阻值也稳定在一定数值。

Product description

The output stage of a single-ended amplifier consists of only amplifying elements (or multiple elements but combined in a group) to amplify the signal for plus or minus two and a half cycles. Single-ended amplifying machines can only operate in Class A mode.

The thermal wire has the characteristic that the resistance changes with temperature. When a constant direct current passes through the thermal conductivity cell, the hot filament is heated. Due to the heat conduction of the carrier gas, part of the heat of the hot filament is carried away by the carrier gas, and part of the heat is transferred to the pool. When the heat generated by the hot wire reaches a balance with the heat lost, the hot wire temperature is stabilized at a certain value. At this time, the resistance value of the hot wire is also stable at a certain value.