Device for measuring substantially vertical, circular-cylindrical objects
US4837717A · kind A · utility
8Cited by
5References
7Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Feb 4, 1987 |
| Grant date | Jun 6, 1989 |
| Priority date | — |
| Expiry date | Feb 4, 2007 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01C15/00
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A measuring device measures the width of trees and other vertically disposed objects at a distance from these objects. An aiming instrument cites various points along the object and measures a distance to the object as well as provides a signal proportional to a plumb line angle sensor, a signal proportional to a horizontal angle device, and a distance measuring signal. A computer coupled to the aiming instrument will compute the diameter of the trees or other vertically disposed objects from the distance signal, angle sensor signal and horizontal angle device.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.