LDDM Technology vs. Michelson Interferometer Technology
LDDM Technology vs. Michelson Interferometer Technology
- Advanced Technology: Utilizes the latest Electro Optics and Radio Frequency technology with multiple patents, offering higher performance at a lower cost.
- Signal Quality: Employs a 2-frequency, FM, and heterodyne system, providing a higher Signal to Noise Ratio and better signal quality compared to single-frequency, AM, and homodyne systems.
- Compact Design: Features a single aperture and small retroreflector, making it more compact and easier to mount directly on machines without the need for a tripod.
- Efficiency: Capable of measuring displacement and angular errors simultaneously, reducing machine downtime and improving data collection speed.
- Ease of Setup: Requires alignment of only two elements, simplifying the setup process and reducing training requirements.
- Flexibility and Versatility: Can use various targets and perform multiple measurement tasks, saving on capital expenses.
- Accuracy and Safety: Frequency locked and traceable to NIST, meeting ASME B5.54 and ISO 230 standards, with low laser output power ensuring eye safety.
- Long Range and High Speed: Capable of long-range measurements and high-speed operations, suitable for high-speed linear motor machines.
- Resolution and Safety: High Signal to Noise ratio and safer for the eye due to low laser output power.
Catalog excerpts
LDDM Technology vs. Michelson Interferometer Technology LDDM technology Michelson interferometer LDDM Advantage ? Higher performance, (Single frequency) ? Lower cost 1. Latest Electro Optics & Radio Frequency technology with many patents Interferometer technology 2. 2-frequency, FM & heterodyne Single-frequency, AM & homodyne ? Higher Signal to Noise Ratio (consider FM Radio versus AM Radio) ? Higher signal quality ? Less interference 3. Frequency locked Frequency locked ? Frequency stable 4. Single aperture Dual-aperture ? Smaller retroreflector capability ? Flat-mirror target capability ? Larger beam diameter possible ? Fewer Optical Components 4a. Small laser head Large laser head ? Compact ? Easily mount on machine ? No need for a tripod ? Smaller carrying case 4b. Small retroreflector Large retroreflector ? Reduces the size of all optical components ? More compact 5. 2 elements to align 3 elements to align ? Easy Faster setup and alignment ? Fewer Separate Optical Components ? More efficiency ? Less training 6. Low laser output power High laser output power ? Eye Safe 7. Long range, up to 100 m Short range ? Long range without increasing laser power 8. Fast, 5 m/sec Slow, 1 m/sec ? Good for high speed linear motor machine 9. Digital electronics ? ? Large Dynamic Range 1 >
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Major Features and Comparison 1. Why LDDM is better? The performance is higher and more flexible. The system is more efficient and accurate, easier to setup and operation, more compact and lower cost. What are the benefits? Higher performance with lower cost. Very good return on investment (ROI). 2. Why LDDM is more compact? The laser head is single aperture and a small retroreflector is used as target. Hence all of the optical components are smaller. The laser head can be mounted directly on the machine and there is no need for a heavy tripod. What are the benefits? The laser head can be mounted...
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What are the benefits? One LDDM for all the machines, save on capital expenses. 7. Why LDDM is more accurate? The laser frequency is frequency locked and the laser accuracy is traceable to NIST. Because of the 2-frequency, FM, single-aperture and large beam diameter, it is less sensitive to environment interference. Hence it is more accurate in the shop environment. What are the benefits? Meet the ASME B5.54 and ISO 230 standards, and traceable to NIST. 8. Why LDDM is Affordable? It uses the latest technology such as Electro-Optic, Radio Frequency and digital electronics and with many patents....
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Why LDDM has more capabilities? Since the laser head is single aperture, either a small retroreflector, a flat-mirror, or any specula reflecting surface can be used as target. Hence it has more capabilities. What are the benefits? It can measure the static volumetric positioning errors, dynamic contouring errors, and spindle error motion. One instrument for all the measurement, saves on capital expenses. > LDDMvsInterfR.doc 12/17/2002 4 13. >
Open the catalog to page 4All OPTODYNE catalogs and technical brochures
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