Aug 9, 2012 — Collimated light is light whose rays are nearly parallel, and therefore will spread slowly as it propagates. The word is derived from "collinear ...

Even though it's quicker and more accurate to align the shaft while the machines are coupled together, sometimes the coupling might need be separated. This might present itself when misalignment causes shaft deflection or bending, when the flexible coupling becomes stiff or when the long shafts protruding from the inboard bearing isn't rigid. To help with uncoupled shaft alignment, some laser alignment tools have built-in inclinometers in the sensors. Others have their own patented technology specific to uncoupled shaft alignment.

When you purchase a laser alignment tool, it generally comes in a case with all the components you'll need, such as the display, extension rods, chains, sensors, brackets and user guide. Tool setup varies depending on the brand, type and model you purchase, but most brands are very user friendly. Pre-installed software typically guides you through the steps or setup process for shaft alignment.

By using our website and services, you expressly agree to the placement of our performance, functionality and advertising cookies. Learn more

Below we'll take a look at how modern laser alignment tools work, the basics of setting up a laser alignment tool and steps to take before aligning your equipment.

Axial sheave runout typically means you should check the taper-lock bushing to ensure it is mounted correctly and tightened. It could also mean the shaft is undersized or that the sheave or bushing is bored abnormally.

While misalignment has no quantifiable effect on motor efficiency, correct alignment does ensure you have a smooth and efficient transmission of power from the motor to the driven equipment, according to research on motor shaft misalignment by the University of Tennessee's Maintenance and Reliability Center (MRC). Misalignment creates excessive vibration and high loads on bearings, mechanical seals, packing and couplings, impacting the operating life of rotating equipment. Other effects of misalignment are:

Beamshaper

Probably the most common type of laser alignment tool on the market, dual laser alignment tools require you to adjust both lasers so they hit the opposite detector. This usually takes more time, requiring a pre-alignment period. Single laser alignment tools, as the name suggests, requires aligning one laser and is sometimes preferred because the distance between the spacer shaft or the distance between the machines doesn't usually affect the measurment. There's also no need for pre-alignment with single laser alignment tools.

Once setup is complete, you cannot make adjustments to the sensors or you'll get inaccurate readings. Upon setup, many laser alignment tool displays show you a 3D view of your machine as it takes the three readings while you adjust to the proper positions (9, 12 and 3 o'clock). The user friendliness of most laser alignment software indicates that you've taken an accurate reading at each position. For example, once the sensors are properly in the 9 o'clock position, a button will go from red to green, allowing you to record that measurement.

The team from Tech-On has taken the time to teardown two interesting microprojectors. The first model they tackled was the Optoma PK101. It’s based around a digital micromirror device (DMD) like those used in DLP. Separate high intensity red, green, and blue LEDs provide the light source. A fly-eye style lens reduces variations between images. They noted that both the LEDs and processors were tied directly to the chassis to dissipate heat.

But now, with high index glasses available in thinner, lightweight plastic (as well as slightly heavier glass), lens wearers with stronger prescriptions can get ...

Alle Fälle für das Substantiv „Intaktheit auf einen Blick ✔️ Übersichtliche Aufbereitung der Deklination von „Intaktheit in Tabellenform ...

So, how much do the tools cost? Price depends on the type of alignment tool (shaft or belt alignment), what's included in the alignment kit and how advanced the tool's features are. For example, a more versatile laser alignment tool with ultra-compact measuring units for very narrow spaces might cost a little more than a standard model. By checking a few major distributor's websites, you can find current pricing for shaft and belt laser alignment tools, such as the following guidelines:

Newer technology, such as Pruftechnik's sensALIGN technology, now provides users with thousands of measurement points. This multi-point feature takes hundreds of points at any degree; a continous (SWEEP) mode automatically collects those points.

We suspect that the thumbnail for the video is a composite, but that’s understandable since the conditions for viewing such a display have to be just right in terms of ambient light level and the viewer’s position relative to the display. [Mac] even mentions the narrow acceptance angle of the display, touting it as a potential benefit for use cases where privacy is a concern. In any case, it’s very different from his last sci-fi-inspired volumetric display, which was pretty cool too.

The Seiler Video Trinocular Microscope allows you to project on a LCD monitor. Visit americanmedicals.com or call (904) 636-9451 for more information.

Focal length is expressed in millimeters or, on occasion, in inches (1 inch is approximately 25mm). The object's size in the frame is directly proportional to ...

It's estimated that 50 to 70 percent of vibration issues in rotating machinery are caused by misalignment, according to Texas A&M's OAKTrust study on coupling misalignment forces. In fact, reliability equipment supplier VibrAlign reported that one of its customers found that just over half of their plant's machinery was misaligned to some degree. So, why is shaft alignment a big deal?

The Tripoint method calculates the alignment condition by taking measurements at three points while rotating the shaft at least 60 degrees. Unlike the Express method, measurements are taken manually rather than automatically.

Modern laser alignment tools check for three types of misalignment: parallel (offset), angular and a combination of the two. Both of the two main types (parallel and angular) can occur in vertical and horizontal planes.

Holograms and holographic imagery are typically viewed within the frame of science fiction, with perhaps the most iconic examples being Princess Leia’s message to Obi-Wan in Star Wars, or the holodecks from Star Trek. In reality, holograms have been around for a surprising amount of time, with early holographic images being produced in the late 1940s. There are plenty of uses outside of imagery for modern holographic systems as well, and it’s a common enough technology that it’s possible to construct one using an ESP32 as well.

Belt alignment tools, or technically sheave alignment tools, are used to properly align the centerlines of sheave grooves (what the belt runs on) to the proper radial and axial alignment. Because belts are relatively inexpensive, belt or sheave alignment isn't typically considered a major issue; however, misalignment in sheaves can cause other problems in addition to reduced belt life. These problems include:

Performing accurate alignment starts before you even set up your laser alignment tool. These pre-alignment steps and checks are suggested by VibrAlign to ensure your laser alignment tools work properly and accurate alignment is achieved.

Now, we’re not sure if [Maker Mac70]’s floating display is the answer to your sci-fi dreams, but it’s still pretty cool. And, as with the best of tricks, it’s all done with mirrors. The idea is to use a combination of a partially reflective mirror, a sheet of retroreflective material, and a bright LCD panel. These are set up in an equilateral triangle arrangement, with the partially reflective mirror at the top. Part of the light from the LCD bounces off the bottom surface of the mirror onto a retroreflector — [Mac] used a sheet of material similar to what’s used on traffic signs. True to its name, the retroreflector bounces the light directly back at the semi-transparent mirror, passing through it to focus on a point in space above the whole contraption. To make the display interactive, [Mac] used a trio of cheap time-of-flight (TOF) sensors to watch for fingers poking into the space into which the display is projected. It seemed to work well enough after some tweaking; you can check it out in the video below, which also has some great tips on greebling, if that’s your thing.

Feb 29, 2024 — Depending on size of sensor a given Focal Length (mm) lens will capture a specific angle-of-view (AOV) in degrees. The higher the numerical ...

The next projector was the 3M Co MPro110. It uses Liquid Crystal on Silicon (LCoS) technology. The light source is a single bright white LED. The projector seems to have more provisions for getting rid of heat than the previous one. The most interesting part was the resin polarizing beam splitter. It not only reflected specific polarizations, but also adjust the aspect ratio.

For anyone interested in holography, a platform like this is might make an excellent entry point to explore, and with the source for this build available becomes even easier. It’s almost certainly less expensive than these 3D printers that can turn out custom holographic images, and has the added benefit of being customizable and programmable as well.

Laser alignment tools come in user-friendly kits to help you correct multiple types of misalignment. Below we'll discuss how to use a shaft and belt laser alignment tool and more.

Update 3.5, Prisms, dramatically refreshes the No Man's Sky experience with a range of new visual features and technologies. The universe has never looked ...

Properly aligned machines offer improved uptime and a reduction in maintenance costs. Checking for and correcting misalignment is a fairly straightforward process with the help of modern laser alignment tools.

Once you've confirmed there is no radial runout of the shaft, check for radial sheave runout. If runout is noticed, it's usually due to an abnormally bored sheave or bushing. You should replace the sheave before aligning if this is the case.

Thorlabs offers polarizing beamsplitter cubes in 5 mm, 10 mm, 1/2" (12.7 mm), 20 mm, 1" (25.4 mm), and 2" (50.8 mm) sizes.

Holoor

If there’s a reason that fancy holographic displays that respond to gestures are a science fiction staple, it’s probably because our current display technology is terrible. Oh sure, Retina displays and big curved gaming monitors are things of wonder, but they’re also things that occupy space even when they’re off — hence the yearning for a display that can appear and disappear at need.

When it comes to mounting the sensors, six things matter to obtain an accurate reading: measurement methods, distance, angular relationship (inclinometers), bracket assemblies, mounting location and miscellaneous looseness. Let's discuss a few in more detail.

In this build, [Fiberpunk] demonstrates the construction and operation of a holographic clock. The image is three-dimensional and somewhat transparent and is driven by an ESP32 microcontroller. The display is based around a beamsplitter prism which, when viewed from the front, is almost completely invisible to the viewer. The ESP32 is housed in a casing beneath this prism, and [Fiberpunk] has two firmware versions available for the device. The first is the clock which displays an image as well as the time, and the second is more of a demonstration which can show more in-depth 3D videos using gcode models and also has motion sensing controls.

The Clock method is more of a dated method and involves taking three measurements at the 9, 12 and 3 o'clock points. The clock method is useful when a machine base is not truly horizontal or vertical, such as when mounted at an angle. It's also useful when a horizontal machine is mounted on a vertical plane.

Nov 8, 2021 — What if your urine is clear and you're not knocking back glass after glass of water? That may signal an underlying kidney problem or diabetes.

Belt or sheave alignment tools help detect three types of misalignment: radial runout of the shaft, radial runout of the sheave and axial runout of the sheave. Radial shaft runout usually means the shaft is bent. If it is bent out of tolerance, the shaft should be replaced.

Proper coupling alignment can save you from a variety of problems, such as excessive wear and energy consumption, accelerated shaft and coupling failure, and increased vibration. Maintaining alignment requires regular monitoring. Modern laser alignment tools and their accompanying software have made it quite simple to accomplish this.

GJ Beck · 2023 · 6 — We present a design methodology for free-space beam-forming with general profiles from grating couplers which avoids the need for numerical optimization.

The goal of a laser alignment tool is to ensure the two coupled shafts are aligned; that is, their center lines have a common axis (coaxial). Modern laser alignment tools have a big advantage over traditional alignment tools like a straight edge, optics and dial indicators. They consist of two sensors (a laser emitter and a receiver), brackets, rods, chains and a display unit. Let's break down the different components of a laser alignment tool.

Belt or sheave alignment tools vary depending on the brand and type, but generally work by attaching two magnetic V-sensors into the grooves of the sheave. Unlike shaft alignment tools, with these tools you only have two components: a laser-emitting sensor and a receiver unit. The receiving unit uses a 3D target area to detect horizontal, vertical and/or parallel misalignment.