CAJ | 학술논문

连续检波对数视频放大器(SDLVA)存在零点漂移的问题,尤其是在环境温度发生改变的情况下漂移更加严重,导致器件的系统指标无法达到工程应用要求.针对这些问题,对工程实践中得到的一些实际测试数据进行了初步分析,提出了一种利用温度传感器进行补偿的办法来解决零点温度漂移的方案,并给出了实际的温度补偿电原理图、计算方法和测试曲线,经过多次实践证明,SDLVA在宽温范围内输出稳定.系统使用温度补偿后的SDLVA,完善了系统的自我检测能力.该方案简单易行、成本低廉、效果明显.
련속검파대수시빈방대기(SDLVA)존재영점표이적문제,우기시재배경온도발생개변적정황하표이경가엄중,도치기건적계통지표무법체도공정응용요구.침대저사문제,대공정실천중득도적일사실제측시수거진행료초보분석,제출료일충이용온도전감기진행보상적판법래해결영점온도표이적방안,병급출료실제적온도보상전원리도、계산방법화측시곡선,경과다차실천증명,SDLVA재관온범위내수출은정.계통사용온도보상후적SDLVA,완선료계통적자아검측능력.해방안간단역행、성본저렴、효과명현.
Voltage-zero drift problems exist in SDLVA, and it gets worse especially when environmental temperature changes, as a result the products containing SDLVA can not reach the requirements for engineering application. Based on the primary analysis of a series testing data from practical projects, a method of temperature compensation was brought forward to solve the problem, and also the specific temperature compensation electricity theory illustration, calculate method and testing curve were given. According to the substantial evidences, the output of SDLVA is stable around wide temperature range. With the SDLVA, system is perfect in self inspection. It reveals that the method is easy to execute, and get effect significantly with low cost.