The new Nikon MM-series of industrial measuring microscopes has been periodically upgraded since the early 1950s, but not to such an extent as during the latest, sixth makeover. The new generation was unveiled at the Control 2023 exhibition in Stuttgart earlier this month.

Nikon’s new MM-400N and MM-800N series measuring microscopes have aperture diaphragm control on the diascopic illuminator, which allows an operator to adjust the aperture to optimise both contrast and resolution. It is also possible to set the lighting conditions for measuring cylindrical products.

Notably, the newly-developed diascopic LED illuminator has both white and green light sources, allowing the operator to change easily from one colour to the other by pressing a switch on the front of the microscope, without having to insert or remove a filter. Furthermore, by integrating the diascopic illuminator into the main body of the measuring microscope, the depth of the instrument is 30 mm shorter, reducing the installation footprint.

As part of the makeover, Nikon has modernised the appearance of the measuring microscopes, which sport the company’s new, clean-white and black livery. Furthermore, power consumption is 10% lower than the former MM-400/MM-800 series models. Nikon says it provides environmentally friendly products and complies with the RoHS Directive and other laws and regulations.

Many components are common to the new and previous series models, including the measurement stage, objective lenses and optical accessories, which a user can continue to use for simple, accurate and highly reproducible measurement applications.
For further information www.nikonmetrology.com

Blum-Novotestpresented its new LC53-Digilog laser measuring system for tool measurement and monitoring in CNC machining centres, at the recent Control 2023 show in Germany. With this system, Blum has expanded its product spectrum to include an optical system with a separate transmitter and receiver unit alongside forward-looking Digilog technology.

Devices with separate transmitter and receiver units – namely the predecessor systems Mini NT and Micro Single NT – have been in the company’s portfolio for many years and are valued for their high degree of precision and process reliability. Thanks to the Digilog technology employed in the LC53-Digilog, it has been possible to enhance these attributes even further.

While the tried-and-test digital/switching laser measuring systems based on NT technology generated only a small number of signals by shading the tool, the new Digilog laser measuring systems generate many thousands of measurement values per second while dynamically adjusting the measuring speed according to the tool’s nominal speed. The LC53-Digilog also measures each cutting edge individually, rather than just determining the value for the longest cutting edge, and thereby makes a comparison possible from the shortest to the longest cutting edges. Run-out errors, caused by contamination of the taper of the tool holder, for example, are automatically detected. Furthermore, due to the large number of measurements per cutting edge, the LC53-Digilog is able to detect contaminants and cooling lubricant adhering to the tool. By deducting them from the calculations, it makes measurement results even more reliable.

The LC53-Digilog is particularly easy to install with the newly developed mounting set, which comfortably aligns the transmitter and receiver unit. It is possible to attach systems to a machine wall using only a single threaded hole.
For further information www.blum-novotest.com

A technological innovation from Pepperl+Fuchs in co-operation with the Fraunhofer Institute for Silicon Technology ISIT enables maximum precision and performance, while remaining highly cost-efficient. For the first time, high-performance distance measurement technology is combined with MEMS technology, forming the basis for the R3000 3-D LiDAR/MEMS sensor.

The 3D measurement is based on Pulse Ranging Technology (PRT), a distance measurement method developed by Pepperl+Fuchs that can be scaled to meet a wide range of requirements. Based on over 250,000 emitted laser pulses per second, it measures distances from a few centimetres to several hundred metres with millimetre accuracy. Ambient light and other environmental influences are effectively suppressed, helping PRT to deliver fast, precise and reliable measurement results.

To reach the third dimension, Pepperl+Fuchs combines PRT with a micro-electro-mechanical system from Fraunhofer ISIT for the first time as part of the R3000 product study: a small, economical, and mechanically robust MEMS mirror is integrated into the sensor. Through the motion of the piezoelectrically driven element, the emitted laser beam deflects in two axes by 40° x 30°. Unlike conventional 3D sensors, no pixel grid is created during the process of measurement. Instead, the R3000 uses a particularly small light spot and seamless scanning to produce ultra-high resolution 3D point clouds with exceptional detail.

To make communication between man and machine as simple as possible, the R3000 is equipped with additional functions. The sensor not only generates a 3D point cloud, but also a superimposed intensity image that can visualise the scene and therefore facilitate programming and operation. In addition, each measurement point can be displayed with a visible laser beam. The synchronous laser projector allows the R3000 to be precisely aligned and adjusted without additional tools, ensuring easy commissioning.
For further information www.pepperl-fuchs.com