Geometrical instruments – Distance measuring – Opposed contacts
Patent
1989-08-09
1991-06-11
Cuchlinski, Jr., William A.
Geometrical instruments
Distance measuring
Opposed contacts
33810, G01B 320
Patent
active
050221620
DESCRIPTION:
BRIEF SUMMARY
The invention relates to a general-purpose measuring implement usable in the field or in otherwise difficult circumstances, and especially to one applicable to measuring raw wood and to recording measurement data, and to a method, usable with this implement, for transferring to the electronic memory of the implement the data to be recorded.
If measuring raw wood is taken as an example, the question is of, for example, measuring logs in storage and measuring logs in piles, as well as, with respect to measuring standing timber, of counting the number of trees and making various sampling measurements.
In all these measurements, several preliminary data are required, such as personal data, data concerning the measuring area, etc. In addition, each measuring operation requires a series of various data which relate to one another in a certain manner. In measuring timber in storage, the items measured and recorded include the number of the chance, the type of timber, the length of the log, the diameter of the log, and possibly the quality class of the log. In measuring pulpwood in piles, the items measured and recorded include the height data of the pile (at predetermined intervals), the length of the items of timber, and the pile density factors. In measuring standing timber, the items measured and recorded regarding each tree include the diameter at chest height, the number of the chance, the type of the trunk, and the running number of the trunk. In sample measurement, the items measured and recorded regarding the trunks in the random sample include the diameter at breast height, the diameter at the height of 6 m, the length of the trunk, the type of the trunk, and quality data regarding the trunk. There are different principles and mathematical methods for defining the trunks included in the random sample.
These measuring methods as such have been used for a rather long time, and there are different variations in their details. Previously, the measurement values obtained and the other data have been recorded by writing them down on the spot in the field on paper, such as pre-made forms, from which they have later been picked out in the office and entered for further processing. The further entering and further processing of the data are often computerized.
Even at present, most of the recording of the data is by hand on paper. Recording electronic measuring implements have been made for certain individual measurements, but the problem of recording by means of one implement all the values relating to some measurement series, such as the measurement of logs in storage, has not been solved in a manner applicable in practice, not to speak of the problem of recording all different kinds of measurements by means of one implement, as is evident from the following.
One way to record figures is to use a separate electronic recording device, which can be an advanced pocket calculator with a large memory, or a pocket computer, or some other device which converts mechanical data into electronic data. In this case the measuring itself is carried out in a completely conventional manner by mechanical, hand-held measuring implements, whereafter the measured value is recorded by entering it into an electronic memory by means of the keyboard of the recording device or some other mechanism, as in Patent FI-50573. When all of the measurements to be carried out at one time have been carried out, the further processing of the measurement data can be effected in the case of more advanced devices by means of the recording device itself, or the measurement data can be transferred in electronic form along a cable to the actual processing computer.
The most advanced measuring method and implement is the implement presented in Patent FI-68316 for measuring and recording the diameter of timber. This implement is made up either of calipers or of a sliding caliper gage, by means of which in the first phase the diameter is measured in exactly the same way as when using a merely manually operated mechanical gage; in the second phase the elec
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Cuchlinski Jr. William A.
Fulton C. W.
Thomesto Oy
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