... There are generally four types of data acquisition boards that are use in PC's: analog input, analog output, digital input and digital output. Frequently, several functions are combined to make a multifunction I/O board. Those that feature a single function are referred to as "special-function...

...-Log etc.) Data files can be exported to other analysis programs. operation upstream oil & gas frequency presentation interface reflection bottomhole pressure casinghead pressure acquisition variation transducer liquid level gravity buildup drillstem testing pressure transient...

... Abstract A system has been developed based on a powerful portable microcomputer and an integrated data acquisition instrumentation package which allows real-time visualization of pumping well performance.The system integrates all the necessary elements to obtain a complete analysis...