What is a high-speed 5D sensor?

High-speed 5-D sensor is a measuring instrument capable of non-contact 5-axis simultaneous measurement by combining the autocollimator method, triangulation method, and optical observation method. (Applied patent No. 5330114 technology)

Unlike our 6-D sensor, it does not require a dedicated target. Unlike our 6D sensor, it does not require a dedicated target, but uses a mirror that reflects the total reflection (mirror target) as in the case of the displacement tilt sensor. Unlike contact-type 3D measuring instruments, non-contact real-time measurement is performed by laser. Ideal for measurement of small objects that cannot be touched and high-speed moving objects.

What is the autocollimator method?

A device called a collimator artificially creates collimated light (light that travels in a straight line). The mechanism of the device is that light emitted from a light source is refracted and emitted through a lens to form collimated light.

A machine that uses this mechanism to emit light inside is called an “autocollimator,” which means a device that automatically produces light that travels in a straight line.

The 5-D sensor is equipped with this collimated light; the collimated light emitted from the 5-D sensor enters the target mirror and is reflected. The reflected light enters the optical system of the tilt measurement section of the 5D sensor. The reflected light is focused by the lens. The collimated collimated light forms an image on the position sensor and becomes a spot. The position of this spot changes as the incident angle to the lens changes.

This position change is detected and the angle is measured in a non-contact manner. In other words, the method of using collimated light, focusing the reflected light with a lens, and converting the spot position to an angle is called the autocollimator method.

What is the Triangulation Method?

The height measurement of the 5-D sensor is realized by the triangulation method. 5-D sensor is equipped with a laser that illuminates at an angle to the target mirror. The light emitted at an angle is reflected by the target mirror and enters the sensor.

The reflected light changes in height (position) as the height of the target changes. The height of the reflected light is detected by a position sensor to realize non-contact height measurement. The triangulation method is a measurement technique used in many laser displacement meters.

Optical observation method is the technology used for position measurement.

The position measurement in the 5-D sensor refers to the position of the X- and Y-coordinates in the plane perpendicular to the laser emitted from the sensor.　The laser beam from the 5-D sensor has a certain size of light flux. A mirror target reflects the laser. When the mirror target moves in the X,Y direction, the position of the reflected light also moves.

The position measurement of the 5D sensor uses a position sensor to detect this reflected light and realize non-contact measurement.