Patent
Temperature compensated measuring gauge
Joe T Cox,Thomas E Prince +1 more
TLDR
A measuring device for a ring comprising a linear variable differential transformer mounted on a pin gauge for providing a voltage proportional to ring dimension is described in this paper, where a compensation circuit comprised of two thermistors is used for correcting dimensional error due to the difference in temperature of the ring and the pin gauge.Abstract:
A measuring device for a ring comprising a linear variable differential transformer mounted on a pin gauge for providing a voltage proportional to ring dimension A compensation circuit comprised of two thermistors is used for correcting dimensional error due to the difference in temperature of the ring and the pin gauge Each thermistor provides an output voltage which is combined in a first adder and the output of the first added and the voltage output of the differential transformer are combined in a second adder to provide an output proportional to ring diameter and corrected for temperature differenceread more
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Patent
Measurement and compensation system for thermal errors in machine tools
Heui Jae Pahk,Sukwon Lee +1 more
TL;DR: In this paper, a measurement and compensation system for thermal errors in a machine tool is described, which consists of an operating part, a data bank, an analog to digital converter, a counter and a digital input/output part.
Patent
Portable comparator gage for measuring the relative deviation in the diameter of cylinders
TL;DR: A portable comparator gage for cylinders having a self-supporting configuration with a high stiffness to weight ratio to minimize the contact force and therefore "spring open" of the gage when it is placed on a cylinder, and temperature compensation means to compensate for inaccuracies in the measurements of the relative deviation of the diameter of a cylinder resulting from variations in the temperature of the cylinder and gage from a nominal temperature as mentioned in this paper.
Patent
Method and apparatus for best fitting two or more items
TL;DR: In this article, a method and apparatus for confirming that one or more items in a universe of items fall within specified tolerances is provided. And in another embodiment, various methods for determining best fit between items in an infinite set of items are provided.
Patent
Temperature-compensated quantitative dimensional measurement device with rapid temperature sensing and compensation
TL;DR: In this paper, a computerized gauge measures dimensions, typically in the range of 6.1865" to 6.1917" accurate to ± 0.001", typically the diameter of a steel railroad car axle.
Patent
Probing device for a coordinate measuring apparatus
TL;DR: In this paper, an optoelectronic probing device for a coordinate measuring apparatus is described, which is exchangeable automatically via a probe changing device, and the probe is equipped with a temperature sensor which is in thermal contact with the material of the probing device.
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