摘要
To meet the requirement of long-time acquisition without interruptions for the planned nuclear decay experiments at CSRe,a new data acquisition system has been successfully developed in 2016.During the beam time in Dec.2016,our new system has been running stably without any problems and continuously acquiring hundreds of data without any breaks.The whole system is based on a spectrum analyzer(R&S FSVR7)and an IQ recorder(R&S IQR100).Both of them are connected to a server via Ethernet.The spectrum analyzer acquires the time-domain information in the frequency range of interest from the Schottky resonator.The IQ recorder collects the information from the analyzer and packs it into data.Once the data have been entirely transferred to the server,it will immediately be removed from IQ recorder.The high-volume solid-state drive(1TB)of IQ recorder allows for a virtually unlimited size of acquired les to be stored in practice.Besides,in order to bypass the unreliable trigger system of IQ recorder,we built an independent trigger system with a microcontroller(Arduino Yun)to translate the TTL signal to network commands.
