PRUFTECHNIKlaser alignment

10. Document the alignment: Record the final alignment measurements, including any adjustments made and the achieved alignment tolerances. This documentation will serve as a reference for future maintenance and troubleshooting.

IR penetrates the human skin and the eye to various depths ranging from several millimeters by IR-A to superficial absorption of IR-C. Humans have inborn protective aversion responses to pain from high heat and to the bright light that is often also present, so that potentially harmful exposure is avoided. Harmful health effects of IR are due to thermal injury of tissues mediated largely through water molecules but also through changes to protein structure.

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2. Prepare the workspace: Clear the area around the machines and remove any obstacles that may interfere with the alignment process. Ensure the machines are securely mounted and their foundations are stable.

Protection recommendations are aimed especially at the skin and relevant parts of the eye, which are at risk from excessive exposure to infrared radiations.

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To avoid detrimental health effects from infrared radiation on the eye and skin, such as thermal injuries, ICNIRP provides guidance and recommends limits of exposure. Different limits are recommended depending on the wavelength bands and action spectra. The limits also depend on exposure duration and on the size of the source.

7. Make adjustments: Based on the initial measurements, identify the required adjustments. These adjustments typically involve moving the movable machine horizontally and vertically to achieve the desired alignment. Consult the machine manufacturer's guidelines for specific adjustment procedures.

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1. Gather the necessary tools: You'll need a laser alignment system, which typically consists of a laser transmitter and a detector unit. Make sure the equipment is calibrated and in good working condition.

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5. Establish the measuring reference: Determine the desired alignment tolerances and select a suitable measuring reference. This could be a particular point on the machines, such as a coupling face or a shaft centerline.

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Note: The above steps provide a general outline for performing shaft alignment using laser alignment tools. It's essential to consult the specific instructions and guidelines provided by the laser alignment system manufacturer for accurate and reliable results.

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Laser alignmentprocedure

If the whole body is subjected to high levels of heat, increases in body temperature and physical heat-stress can result. Heat stress needs to be evaluated considering all contributing factors including air movement, temperature and humidity as well as the source of the heat.

4. Mount the detector unit: Attach the detector unit to the movable machine's shaft or coupling. Again, ensure it's securely fastened and aligned with the rotational axis.

9. Finalize the alignment: Once the alignment readings meet the desired tolerances, lock down the machine's position by tightening the fasteners and securing the mounting. Double-check the alignment one last time to ensure it remains within the acceptable range.

The main harmful health effects of high IR exposure are to the eye. The cornea, iris, lens and retina are all highly sensitive to varying degrees of thermal damage. When the cornea absorbs IR radiation with conversion into heat, this is conducted to the lens. Aggregation of lens proteins after repeated exposure to extreme heat can cause lens opacities or cataracts, as are often seen in glass workers and iron and steel workers.

Infrared radiation (IR), also known as thermal radiation, is that band in the electromagnetic radiation spectrum with wavelengths above red visible light between 780 nm and 1 mm. IR is categorized as IR-A (780 nm-1.4 µm), IR-B (1.4-3 µm) and IR-C, also known as far-IR (3 µm-1 mm). Common natural sources are solar radiation and fire. Common artificial sources include heating devices, and infrared lamps used and in the home and in infrared saunas for health purposes. Industrial sources of heat such as steel/iron production also fall into the infrared region. Lasers are a special source of IR emitted over one or more extremely narrow wavelength bands.

8. Re-measure and iterate: After making adjustments, re-measure the alignment using the laser alignment system. Check the readings and compare them to the desired tolerances. If further adjustments are needed, repeat the process until the alignment falls within acceptable limits.

3. Mount the laser transmitter: Attach the laser transmitter unit to the stationary machine's shaft or coupling. Make sure it's securely fastened and aligned with the rotational axis.

Skin damage due to hyperthermia can occur but depends on the intensity and the duration of IR exposure. If the temperature of the skin is held at 44°C it takes several hours before irreversible damage occurs. This compares with less than a second at surface temperatures of 70°C. Long-term IR exposure of the skin without burning, such as after years of skin exposure to open fires, can cause a red-brown mottling of the skin. However, IR is not thought to play a role in initiating skin cancer.

6. Take initial measurements: Start by measuring the misalignment between the two shafts. Activate the laser alignment system and align the laser beam with the detector unit. Record the initial readings provided by the system.