ABSTRACT
As a significant tool in various fields, measuring has a
long history. In China, it can date back to the period of Qin
Shi Huang, who standardized the system of weights and
measures, promoted “ Apply the same system of
measuring methods and tools, the same road width and
the same written language”, and also formulated a set of
strict management system. Similarly, measuring methods
and equipment also have a complicated choice, such as
vernier measuring equipment, mechanical measuring
equipment and electrical measuring equipment etc. With
the development of science and technology, the ultrasonic
measurement method has stood out from numerous
measuring methods. As it has the advantages of good
direction and strong penetrability, especially in the opaque
objects, it can reflect when it encounter impurity or
interface. The application of ultrasonic distance
measurement in measuring becomes increasingly
extensive in measuring. The author has designed a
multifunctional ultrasonic distance measurement system
with Chinese display and voice broadcast.
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