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A typical user of this version of the software is someone who wants to be able to check the energy levels and exposures in complex laser effects. The ILDA animated effect analysis screen has an interactive analysis mode where the user can pick any part of the display area with a mouse, and find out when the energy pulses occur, how often, and how much laser energy is contained in each of them. All of this information can be used to help in deciding the measurement strategy and to provide you with an idea of what you should be looking for when taking the measurements. Plots, graphs, as well as numeric data are all used to convey the results of the Scanguard analysis, so that you can see clearly how the laser effect is performing. Furthermore, Scanguard provides helpful tips and explanations about the results, as well as suggestions on how to reduce the hazard, should the exposures be excessive. The results Scanguard generates can be saved, exported or printed so that they can be used with your risk assessment documentation.
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2. Galvanometer Movement Response Simulation The galvanometers found in most laser projectors and used to create the majority of laser effects have a limited bandwidth, and normally followed a tuned frequency response. The effect being that the control signal from the computer system will be slightly different to that which the galvanometers can reproduce. (A good example of this is the standard ILDA test pattern which on a PC shows the circle outside the square in the centre of the pattern. However what should be projecting from a properly tuned pair of galvanometers is a circle inside of the square). The limited frequency response can lead to a difference in the actual exposure from the calculated exposure. Simulating the response of the galvanometers helps to reduce this occurrence. |
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Scanguard Standard has a powerful feature that allows you to look at how the laser energy is distributed throughout a specific laser effect. This gives you the opportunity to see where the danger spots may exist in the effect. When you know where the trouble spots are with the image, you can either take steps to keep those effects away from the audience, or modify the effect so that the effect's hot spots become less intense. Scanguard plots the distribution on the screen with an easy to use colour-coding scheme that shows the precise laser energy concentration. |
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5. Mirror Ball Sweeping Beam Effect Analysis |
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This tool performs an estimation analysis on both line and tunnel diffraction grating effects. Size of the diffracted effects are fully adjustable to accommodate different gratings. |
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Class 4 lasers can be hazardous to look at directly and to view diffuse reflections (reflections that disperse on surfaces such as walls). By typing in a few basic parameters it is possible to get an indication if that bright dot on the wall is harmful to look at.
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The Measurement Toolbox contain a mix of useful tools that one often comes across needing to use when performing laser safety assessments : Scan Angle/Projection size Type in a few simple parameters and the distance involved, and this tool can tell you the scan angle your scanners are working based on the size of the projection, or the projection size based on the scan angle setup.
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Many of today's modern laser projectors use different internal light sources to create multicolour laser effects. Often these individual beams will have different properties such as divergence and radiant powers that need to be taken into account. Scanguard Standard helps to take this into account, allowing the user to enter these parameters through an easy to follow wizard that can then save the results as a named laser projector file, which can be recalled at any point in the future.
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As with all versions of Scanguard, the software includes quick access tools to look up MPE data, wavelength/responsivity, and laser hazard classification references.
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When lasers are used outdoors the effect of the laser beams intersecting with aircraft has to be taken into account. For this reason, in many territories it is necessary to notify the agency responsible for air traffic and to provide them with specific information including safety calculations regarding the laser display. |
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There may be occasions when you need to find out a specific result for a given calculation. For this purpose Scanguard has an advanced calculation mode to allow users work directly with Scanguard's safety calculation engine.
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Keep of record of your laser system parameters and the effects you use so that they can be recalled at any point in the future. You can assign venue names and titles to the effects so that they become easy to remember when required. |
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