By Kevin James
A useful advisor to programming for info acquisition and size - must-have information in precisely the correct amount of intensity for engineers who're no longer programming specialists.
This e-book bargains an entire advisor to the programming and interfacing strategies desirous about info assortment and the next dimension and keep watch over structures utilizing an IBM appropriate laptop. it's an important consultant for digital engineers and technicians all for dimension and instrumentation, DA&C programmers and scholars aiming to achieve a operating wisdom of the economic functions of laptop interfacing.
A uncomplicated operating wisdom of programming in a high-level language is thought, yet analytical arithmetic is saved to a minimal. pattern listings are given in C and will be downloaded from the Newnes website.
- Practical tips on PC-based acquisition
- Written for digital engineers and software program engineers in undefined, now not teachers or machine scientists
- A textbook with robust foundations in industry
Read or Download PC Interfacing and Data Acquisition: Techniques for Measurement, Instrumentation and Control. PDF
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Extra resources for PC Interfacing and Data Acquisition: Techniques for Measurement, Instrumentation and Control.
22 PC interfacing and data acquisition somewhat better. MCA supports 32-bit data transfers at rates up to 20 MB/s. Higher rates (typically 40 to 80 MB/s) are achievable with a special data streaming mode. EISA systems provide bus transfer rates of up to 32 MB/s. Bear in mind that these maximum transfer rates cannot always be realized in practice. Throughput is often limited by factors other than bus bandwidth. The AT’s DMA controller can provide a throughput of up to approximately 1 MB/s (or 2 MB/s, depending upon whether an 8-bit or 16-bit DMA channel is used).
One task might be dedicated to monitoring and controlling product thickness. Another may be assigned to regulating the temperature to which the material is heated prior to being passed through the rollers. Yet another task could be used for periodically transferring thickness, temperature and status information to the display. 3. The interface between the various tasks and the data-acquisition hardware is often implemented by means of one or more interrupt handlers. These are normally contained within some form of dedicated device driver and are designed to allow the system to respond quickly to external events.
They can generally share the same code and data areas (although they each tend to have their own stack segment), and are normally less isolated from each other than are individual processes in a multitasking system. There is also less context information to be saved and restored whenever the operating system switches between different threads, rather than between different processes. This reduces the amount of time taken to perform the context switch. Although not intended for hard real-time applications, Microsoft Windows NT supports multi-threaded processes.