Publication Information
Title: Means and method of sampling flow related variables from a waterway in an accurate manner using a programmable calculator
Author: Eads, Rand E.; Boolootian, Mark R.; Hankin, Steven C. [Inventors]
Date: 1987
Source: U.S. Patent 4,660,422. 28 April 1987 9 p. Int. Cl. G01N 1/44.
Description: Abstract - A programmable calculator is connected to a pumping sampler by an interface circuit board. The calculator has a sediment sampling program stored therein and includes a timer to periodically wake up the calculator. Sediment collection is controlled by a Selection At List Time (SALT) scheme in which the probability of taking a sample is proportional to its estimated contribution to total sediment discharge, or according to accumulated predicted sediment weight. Stage height is also measured and is recorded according to a set scheme.
Keywords: PSW4351, Caspar Creek, programmable calculator, pumping sampler, sediment, SALT
View and Print this Publication (150 KB)
Publication Notes:
- We recommend that you also print this page and attach it to the printout of the article, to retain the full citation information.
- This article was written and prepared by U.S. Government employees on official time, and is therefore in the public domain.
Get the latest version of the Adobe Acrobat reader or Acrobat Reader for Windows with Search and Accessibility
Citation
Eads, Rand E.; Boolootian, Mark R.; Hankin, Steven C. [Inventors] 1987. Means and method of sampling flow related variables from a waterway in an accurate manner using a programmable calculator. U.S. Patent 4,660,422. 28 April 1987 9 p. Int. Cl. G01N 1/44..
|