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Distance-Distance Method for Straightness Measurement
CIRP Annals, 1992Abstract A new method for straightness measurement based on distance measurement from two reference points is introduced in this paper. “he distinguishing feature of this method is that it does not require a straightness reference. It gives high accuracy due to high accuracy in displacement measurement.
G.X. Zhang, X.H. Chu, W. Tang, Z.Z. Jin
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Australian Surveyor, 1973
Abstract Radical changes in the technique of distance measurement followed the introduction of long steel ribands, made possible in 1863 by Chesterman's patented process of treating continuous steel strip. Gunter's linked chains, which had been in use for over 250 years, were replaced by steel tapes up to 10 chains in length, with dramatic improvements
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Abstract Radical changes in the technique of distance measurement followed the introduction of long steel ribands, made possible in 1863 by Chesterman's patented process of treating continuous steel strip. Gunter's linked chains, which had been in use for over 250 years, were replaced by steel tapes up to 10 chains in length, with dramatic improvements
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2021
The astronomical unit (AU) was first used in ancient Greece after Pythagoras had developed geometry. Although they could not measure the distance from the Earth to the Sun, the Greeks could use the relationships of the angles and sides of a right triangle to determine the distance of Venus or Mercury from the Sun as a function of the Earth–Sun distance,
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The astronomical unit (AU) was first used in ancient Greece after Pythagoras had developed geometry. Although they could not measure the distance from the Earth to the Sun, the Greeks could use the relationships of the angles and sides of a right triangle to determine the distance of Venus or Mercury from the Sun as a function of the Earth–Sun distance,
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Electromagnetic Distance Measurement
1978The direct method of distance measurement discussed in chapter 1 has the disadvantage that measurements over unsuitable terrain or on congested sites can be very difficult and, in some cases, impossible. This problem was overcome with the development of optical distance measurement techniques (see chapter 6) but, in general, such methods are only ...
J. Uren, W. F. Price
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Medium distance GPS measurements
1998In this chapter we discuss GPS geodesy at medium distances which in some ways is the most challenging. As indicated in Chapter 1, GPS can be considered a global geodetic positioning system providing nearly instantaneous position with 1–2 cm precision with respect to a consistent terrestrial reference frame. Nevertheless, as we shall see in this chapter,
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Time to add screening for financial hardship as a quality measure?
Ca-A Cancer Journal for Clinicians, 2021Cathy J Bradley +2 more
exaly