Precision instruments are equipment and devices used to produce and measure precision quantities, including observation, monitoring, determination, verification, recording, transmission, transformation, display, analysis and control of precision quantities.
For the measurement of precision instruments, the structure can be divided into reference, feel the conversion, conversion and amplification of transmission, aiming/reading, data processing, display and recording, drive control, mechanical structure and other eight functional components.
Extended information
In accordance with the different measurement objects, precision instruments can be divided into the following categories:
(1) geometric precision instruments
Mainly includes the detection of a variety of geometric precision instruments, such as vertical goniometers, laser interference than the length of the instrument, latitude and longitude instrument, coordinate measuring machine, roundness instrument, Profilometer and scanning tunneling microscope and other measuring instruments.
(2) thermal precision instruments
Mainly includes temperature, humidity, pressure, flow detection precision instruments, such as various barometers, vacuum gauges, multi-wavelength temperature measurement instruments, flow meters and altimeter.
(3) Mechanical precision instruments
Mainly includes a variety of force measuring instruments, strain gauges, acceleration and speed measuring instruments, torque measuring instruments, vibration measuring instruments, universal material testing machine and Brinell hardness tester.
(4) time and frequency precision instruments
Mainly includes a variety of timing instruments and meters, atomic clocks, time and frequency measuring instruments.
Baidu Encyclopedia - Precision Instruments