Digital integrator design incorporating an output scaler

✍ Scribed by R.E.H. Bywater

• Publisher: Elsevier Science
• Year: 1971
• Tongue: English
• Weight: 397 KB
• Volume: 7
• Category: Article
• ISSN: 0005-1098
• DOI: 10.1016/0005-1098(71)90011-2

✦ Synopsis

The scaled digital integrator cuts DDA costs by catering more economically for the many "potentiometers" needed in a typical machine and reduces the solution errors by removing unnecessary machine delays.

Sununary--A digital integrator design is proposed which has one or more built in "potentiometers". It is intended primarily for use as the elementary module of a digital differential analyser (DDA)for process control and the solution of differential equations. By so reducing the number of machine elements, the "patching" problem is considerably eased, especially when electrically programable interconnections are necessary. NOTATION X integrator independent variable Y integrand t R integral-residue register P potentiometer Y(0, etc. contents of Y, etc. at iteration (i) AX, etc. increment of X, etc. s(Y), etc. sign of Y, etc.