文档介绍：Fundamentals of Measurement Technology (1)
Prof. Wang Boxiong
Measurement technology: background and development
Essence of measurement and its basic prerequisites
Standards and their units
Major points to study
What is measurement technology all about?
Significance of measurement technology in science, production and social progress
ponents of a measuring system and their respective functions
What to study
Historical background
Knowledge acquisition often begins with measurement.
Measurement science (metrology) was generated and developed with the development of human society.
Early measurements:
Length (distance), time, area and weight, etc.
Measurement technology: background and development
The field of measurement was enlarged continuously, and the means and methods for measurements became more sophisticated:
Elle, created by the Egyptians in about 3000 .
A unified standard of length.
Defined as the length of the forearm of the Pharao measured from his elbow to the tip of his stretched middle finger plus the width of a palm twig in his hand.
Realized with a black granite as the primary standard.
Emperor Qin Shi established a unified system of weights and measures and gave severe punishments to those who violated the system.
Measurement technology: background and development
Measurement technology plays an important role in promoting production development and social progress.
The rapid development of science and technology has invigorated measurement technology, and the development of modern electronics, especially the information technology has pushed forward further its development.
Every subject can find its trace in measurement technology.
The development of measurement technology has, in turn, promoted the development of other subjects.
Measurement technology: background and development
The extensiveness, essence and scientific significance of measurement technology:
“Whatever e