Discussion on “Optical measuring instruments” at the Leicester Section of the Institution

1936 ◽  
Vol 15 (11) ◽  
pp. 620
Author(s):  
J.H. Bingham ◽  
Loewen ◽  
Austin
Keyword(s):  
Measuring Instruments ◽  
Optical Measuring

Lagerung UP-gedrehter Kalibriernormale/Storage of UP-turned material measures – Influence of climatic conditions during storage on the properties of material measures

2020 ◽  
Vol 110 (11-12) ◽  
pp. 772-778
Author(s):  
Katja Klauer ◽  
Matthias Eifler ◽  
Jörg Hartig ◽  
Benjamin Kirsch ◽  
Jörg Seewig ◽  
...  
Keyword(s):  
Measurement Uncertainty ◽  
Surface Topography ◽  
Climatic Conditions ◽  
Measured Parameter ◽  
Measuring Instruments ◽  
Measuring Device ◽  
Optical Measuring ◽  
Different Temperatures

Kalibriernormale für Oberflächenmessgeräte müssen nach DIN 1319–1 den bekannten Wert einer Messgröße bewahren und reproduzieren, um eine Rückführung der gemessenen Größen sowie die Quantifizierung der Messunsicherheit zu erlauben. Im Rahmen der Untersuchungen wurden ultrapräzisionsgedrehte Kalibiernormale bei zwei unterschiedlichen Temperaturen und relativen Feuchten gelagert und anschließend sowohl mit einem taktilen als auch optischen Messgerät gemessen, um den Einfluss auf die Messgrößen zu beschreiben. According to DIN 1319–1 material measures for surface topography measuring instruments retain and reproduce a defined value of a measurand which enables the traceability of the measured parameter and the quantification of the measurement uncertainty. Within the present investigations, UP-turned material measures were stored at two different temperatures and relative humidities and subsequently measured with both a tactile and an optical measuring device to describe the influence on the measurands.

Discussion on “Optical measuring instruments” at the Birmingham Section of the Institution

1936 ◽  
Vol 15 (11) ◽  
pp. 610
Author(s):  
E.P. Edwards ◽  
Loewen ◽  
Jarvis ◽  
Gigli ◽  
Lungmuss ◽  
...  
Keyword(s):  
Measuring Instruments ◽  
Optical Measuring

Discussion on “Optical measuring instruments” at the London Section of the Institution

1936 ◽  
Vol 15 (11) ◽  
pp. 598
Author(s):  
J.E. Baty ◽  
Rolt ◽  
Loewen ◽  
C.C. Ferguson ◽  
Groombridge
Keyword(s):  
Measuring Instruments ◽  
Optical Measuring

scholarly journals Design of Industrial Standards for the Calibration of Optical Microscopes

Materials ◽  
2020 ◽  
Vol 14 (1) ◽  
pp. 29
Author(s):  
Alberto Mínguez Martínez ◽  
Cecilia Gómez Pérez ◽  
David Canteli Pérez-Caballero ◽  
Laura Carcedo Cerezo ◽  
Jesús de Vicente y Oliva
Keyword(s):  
Surface Characterization ◽  
Precise Measurement ◽  
Metrological Traceability ◽  
Measuring Instruments ◽  
Fields Of Study ◽  
Optical Measuring ◽  
Metrological Control ◽  
Focus Variation ◽  
Industrial Standards

One of the most important fields of study in material science is surface characterization. This topic is currently a field of growing interest as many functional properties depend on the surface texture. In this paper the authors, after a short a review of different methods for surface topography characterization and the determination of the traceability problems that arise in this type of measurements, propose four different designs of material standards that can be used to calibrate the most common optical measuring instruments used for these tasks, such as measuring microscopes, metallurgical microscopes, confocal microscopes, focus variation microscopes, etc. The authors consider that the use of this type of standards (or others similar to them) could provide a step forward in assuring metrological traceability for different metrological characteristics that enables a more precise measurement of surface features with optical measuring instruments. In addition, authors expect that this work could lay the groundwork for the development of custom standards with specialized features tuned to gain a better metrological control when measuring specific geometrical surface properties.

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