Precision displacement measurement is a measurement technique which has a two dimensional orientation of two equivalent real planes. This technique can measure the precise displacement between two points in space by measuring the difference between two points, or positions. Precision displacement measurements can provide precise information on displacement, displacement force, strain and stress.
In this article we will discuss the basics of precision displacement measurement, the different types available and the various methods in which it can be used.
Precision displacement measurement instruments have been around for over a century. They were initially developed to measure machines’ precise movements as well as measure architecture structures like bridges and tunnels. However, recently, precision displacement measurement instruments have become a standard in fields such as engineering and automation. In addition, precision displacement measurement instruments are also used in industries like automotive, aerospace, microscopy, medicine and biotechnology.
The basic principle of precision displacement measurement is that two points in space must be measured at two different points of view. In order to do this, two samples of a reference object can be used that can be put in different positions in order to take measurements. As the reference object moves between the two points in space, the measurement of the points can be tracked. These measurements can then be compared to provide precise information regarding the displacement, displacement force, strain and stress.
There are several types of precision displacement measurements available such as: interferometric, optical, capacitive, inductive, piezoelectric, ultrasonic and eddy current. Each type of these measurements has a unique application in its own right and can provide precise information for that particular application.
Interferometric measurements are one of the most widely used precision displacement measurement techniques. This Type of measurement uses two light beams that are crossed to measure the change in the phase of light over a given distance.
The optical techniques are similar to interferometric techniques but utilize linear optical measurements such as diffraction or spectrometry. With this type of measurement, optical fibers are used to measure the change in refractive index over a given distance.
Capacitive measurements use capacitors which store energy in order to measure displacement and strain. This technique is often used to measure the displacement of micro-particles in a given space.
Inductive measurements use inductive coils to measure displacement. Inductive measurements are often used to measure the motion of objects in order to determine their rotational speed.
Piezoelectric measurements use a piezoelectric crystal to measure displacement, motion and acceleration. Piezoelectric measurements are often used to measure very small displacements such as the movement of micro-particles.
Ultrasonic measurements use sound waves to measure the displacement of objects. They are often used to measure the speed of fluids and are typically used in medical applications such as ultrasound imaging.
Lastly, eddy current measurements use electromagnetic fields to measure displacement. Eddy current measurements are often used to measure the displacement of objects in a given space.
In addition to the different types of precision displacement measurement, there are also several different methods in which these measurements can be performed. These methods include online, simulated, manual, robotic, and non-contact measurements.
Overall, precision displacement measurement is a critical technique used in many different industries and applications. With the right type of measurement, it is possible to accurately measure the displacement of objects in a given space using various methods and devices. Whether it is used to measure machines’ precise movements or the displacement of micro-particles, precision displacement measurement instruments can provide precise information for the user.
