ultra-audion circuit

Reactive ion beam etching technique has been effectively used to study and fabricate large-scale and ultra large scale integrated circuit, acoustic surface wave device, magnetic bubble device microwave device, integrated optical circuit, superconducting device, shimmer optical pattern etc.

反应离子束刻蚀技术已有效地用于研究和制造大规模和超大规模集成电路，声表面波器件，磁泡存储器，微波器件，集成光路，超导器件，闪烁光栅等。

This paper presented a novel circuit for equalizing a connected ultra-capacitor stack based on DC-DC converter.

介绍一种基于DC -DC 变换器的新型串联电容器组电压均衡电路.

The practical method of realizing ultra low frequency ( ULF) vibration sensor by using magneto-electric velometer, which can make the lowest measurable frequency less than 0.5 Hz and keep the optimum damping remaining via cascade connection correcting circuit.

本文提出了利用磁电式速度计实现超低频振动传感器的实用方法&通过串联式校正电路，在保持最佳阻尼的同时，使可测最低频率降至0.5Hz以下。

It has been demonstrated that the circuit features accurate turning off/ on threshold value, high sensitivity to temperatures, ultra-low static current, and low power consumption.

结果表明，该电路具有关断和开启阈值点的准确性强、对温度灵敏度高、超低静态电流和低功耗等特点。

In this papers it studied the factors that influenced RC oscillator ampli-tude stability at ultra-low frequencies with a typical circuit and got some conclusions experimentally about selection of parameters for the amplitude stabilization circuit.

本文对工作于超低频情况下的RC振荡器的振幅稳定性进行了实验研究，得出如何选择稳幅电路有关参数的若干结论。