摘要
介绍了一种智能高精度虚拟频率计的设计方法。通过调理电路处理测量信号,利用高精度采集卡采集数据,运用VB作为虚拟仪器开发语言,并采用数字滤波和量程自动切换等数据处理方法,开发出的虚拟频率计具有精度高、量程自动切换功能。实验表明:该频率计有较宽的测量范围和抗干扰能力。
In this paper,a design method of high precise intelligent frequency meter(HPIFM)is discussed and realized. High precise DAQ card acquired data,and then signals are processed through conditional circuit. The development platform of HPIFM is microsoft visual basic,and the digital filter and auto-switch of the full scale are used. HPIFM have many features such as high precise,auto-switch of full scale and so on. Through the experiment result analysis,a conclusion can be made clearly that HPIFM have much wide frequency scope and anti-jamming.
出处
《中国仪器仪表》
2005年第2期36-36,38,40,共3页
China Instrumentation
