Test date and environment<\/li>\n<\/ul>\n\n\n\nWithout this record, it is difficult to determine whether a later performance change came from the module, host, firmware, test setup or production revision.<\/p>\n\n\n\n
Welche Nachweise sollte ein Lieferant erbringen?<\/h2>\n\n\n\n A professional evaluation should include more than a specification sheet.<\/p>\n\n\n\n
Request the documents relevant to the quoted configuration:<\/p>\n\n\n\nDocument or evidence<\/td> Warum das wichtig ist<\/td><\/tr> Technisches Datenblatt<\/td> Defines optical, electrical, mechanical and environmental limits<\/td><\/tr> 2D-Zeichnung<\/td> Defines dimensions, mounting features and optical-axis position<\/td><\/tr> 3D model<\/td> Supports enclosure and interference review<\/td><\/tr> Kommunikationsprotokoll<\/td> Defines commands, output frames, status and errors<\/td><\/tr> Test conditions<\/td> Explains the target and environment behind range claims<\/td><\/tr> Laser-safety documentation<\/td> Identifies the configuration and assessment boundary<\/td><\/tr> Sample inspection record<\/td> Connects the delivered unit to measured results<\/td><\/tr> Environmental test information<\/td> Supports temperature, vibration and shock requirements<\/td><\/tr> Change-control process<\/td> Reduces uncontrolled differences after design-in<\/td><\/tr> Production traceability<\/td> Connects serial numbers, revisions and outgoing inspection<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\nAlso ask what the supplier tests during production.<\/p>\n\n\n\n
Relevant controls may include:<\/p>\n\n\n\n
\nIncoming component inspection<\/li>\n\n\n\n Laser-output verification<\/li>\n\n\n\n Optical-axis alignment<\/li>\n\n\n\n Receiver and electronics testing<\/li>\n\n\n\n Range calibration<\/li>\n\n\n\n Aging or burn-in<\/li>\n\n\n\n Temperaturscreening<\/li>\n\n\n\n Communication testing<\/li>\n\n\n\n Final functional inspection<\/li>\n\n\n\n Visual and packing inspection<\/li>\n<\/ul>\n\n\n\nA high-performing engineering sample is not enough when the production process cannot reproduce it.<\/p>\n\n\n\n
Praktische Beispiele zur Modulauswahl<\/h2>\n\n\n\nExample 1: Civil UAV altitude measurement<\/h3>\n\n\n\n Assume the UAV operates up to 1,000 m above the ground but can bank during flight.<\/p>\n\n\n\n
Do not select a 1 km module without calculating slant range. At an angle, the line-of-sight distance is longer than the vertical altitude.<\/p>\n\n\n\n
Priorities include:<\/p>\n\n\n\n
\nMaximum slant range<\/li>\n\n\n\n Ground and vegetation response<\/li>\n\n\n\n Gewicht<\/li>\n\n\n\n Average and peak power<\/li>\n\n\n\n Messrate<\/li>\n\n\n\n Vibration<\/li>\n\n\n\n Interface latency<\/li>\n\n\n\n Timestamping<\/li>\n\n\n\n Boresight<\/li>\n\n\n\n Host-window contamination<\/li>\n<\/ul>\n\n\n\nA compact 3 km-class module may provide useful margin, but the decision should be validated on representative terrain rather than selected from altitude alone.<\/p>\n\n\n\n
Example 2: Railway infrastructure inspection<\/h3>\n\n\n\n The target may include dark steel, concrete, painted surfaces, cables and angled structures.<\/p>\n\n\n\n
Priorities include:<\/p>\n\n\n\n
\nTarget-angle performance<\/li>\n\n\n\n Dark-surface return<\/li>\n\n\n\n Platform motion<\/li>\n\n\n\n Vibration<\/li>\n\n\n\n Temperature range<\/li>\n\n\n\n Retained alignment<\/li>\n\n\n\n Multi-target behavior<\/li>\n\n\n\n Window cleanliness<\/li>\n\n\n\n Measurement synchronization<\/li>\n<\/ul>\n\n\n\nA large-target maximum-range claim is less useful than a controlled test on the actual materials and angles.<\/p>\n\n\n\n
Example 3: Long-range fixed monitoring<\/h3>\n\n\n\n A fixed instrument may measure buildings, terrain or infrastructure several kilometers away.<\/p>\n\n\n\n
Priorities include:<\/p>\n\n\n\n
\nTarget size<\/li>\n\n\n\n Atmospheric visibility<\/li>\n\n\n\n Empfangs\u00f6ffnung<\/li>\n\n\n\n Divergenz<\/li>\n\n\n\n Pointing stability<\/li>\n\n\n\n Entfernungsfensterung<\/li>\n\n\n\n Temperature drift<\/li>\n\n\n\n Continuous operating power<\/li>\n\n\n\n Long-term configuration control<\/li>\n<\/ul>\n\n\n\nA narrower beam may improve energy placement, but only when the mount and pointing system can hold the beam on the target.<\/p>\n\n\n\n
Example 4: Portable surveying instrument<\/h3>\n\n\n\n The instrument may need both short and long measurements.<\/p>\n\n\n\n
Priorities include:<\/p>\n\n\n\n
\nMindestreichweite<\/li>\n\n\n\n Genauigkeit<\/li>\n\n\n\n Ein konsistenter Offset von einer vertrauensw\u00fcrdigen Referenz<\/li>\n\n\n\n Target variation<\/li>\n\n\n\n Battery demand<\/li>\n\n\n\n Compact package<\/li>\n\n\n\n Startup time<\/li>\n\n\n\n User-triggered measurement<\/li>\n\n\n\n Host display timing<\/li>\n<\/ul>\n\n\n\nA longer-range module may have a longer minimum distance or larger package. It is not automatically a better replacement for a shorter-range model.<\/p>\n\n\n\n
Laser-Entfernungsmesser-Modul RFQ-Checkliste<\/h2>\n\n\n\n Include the following information when requesting a recommendation or quotation:<\/p>\n\n\n\n
Measurement requirement<\/h3>\n\n\n\n\nTarget materials and approximate reflectivity<\/li>\n\n\n\n Smallest target dimensions<\/li>\n\n\n\n Minimum, normal and maximum distance<\/li>\n\n\n\n Required accuracy<\/li>\n\n\n\n Required valid-reading rate<\/li>\n\n\n\n Measurement frequency<\/li>\n\n\n\n Target speed<\/li>\n\n\n\n Platform speed<\/li>\n\n\n\n Foreground or multiple-target conditions<\/li>\n<\/ul>\n\n\n\nOptical and mechanical requirement<\/h3>\n\n\n\n\nPreferred wavelength<\/li>\n\n\n\n Maximum divergence or target-footprint limit<\/li>\n\n\n\n Maximum module dimensions<\/li>\n\n\n\n Maximum weight<\/li>\n\n\n\n Mounting restrictions<\/li>\n\n\n\n Optical-axis location<\/li>\n\n\n\n Host-window material and coating<\/li>\n\n\n\n Required drawing and 3D model<\/li>\n<\/ul>\n\n\n\nElectrical and software requirement<\/h3>\n\n\n\n\nAvailable input voltage<\/li>\n\n\n\n Average and peak power limits<\/li>\n\n\n\n Preferred interface<\/li>\n\n\n\n Cable length<\/li>\n\n\n\n Required commands<\/li>\n\n\n\n Single or continuous measurement<\/li>\n\n\n\n Range-gate requirement<\/li>\n\n\n\n Multi-target requirement<\/li>\n\n\n\n Required startup and response timing<\/li>\n<\/ul>\n\n\n\nEnvironmental and production requirement<\/h3>\n\n\n\n\nOperating and storage temperature<\/li>\n\n\n\n Humidity and condensation conditions<\/li>\n\n\n\n Vibration and shock profile<\/li>\n\n\n\n Dust or moisture protection provided by the host<\/li>\n\n\n\n Sample quantity<\/li>\n\n\n\n Expected annual quantity<\/li>\n\n\n\n Qualification plan<\/li>\n\n\n\n Traceability requirement<\/li>\n\n\n\n Required safety or compliance documentation<\/li>\n<\/ul>\n\n\n\nA detailed RFQ allows the supplier to identify a realistic standard module or explain which changes require custom engineering.<\/p>\n\n\n\n
So w\u00e4hlt Lumexis Module aus<\/h2>\n\n\n\n Lumexis develops 1535 nm pulsed time-of-flight laser rangefinder modules for civil UAVs, surveying instruments, infrastructure inspection, remote sensing and scientific equipment.<\/p>\n\n\n\n
Our team begins with the target and operating conditions. We then review the range envelope, wavelength, divergence, receive aperture, interface, mechanical package, power demand and qualification method.<\/p>\n\n\n\n
The current Lumexis series includes 3 km to 15 km model classes, adjustable 1\u201310 Hz ranging, model-dependent TTL or RS422 communication, range gating and multi-target reporting. Model selection should still be based on the intended target and installed system rather than the model name alone. <\/p>\n\n\n\n
For an engineering review, provide:<\/p>\n\n\n\n
\nTarget type and size<\/li>\n\n\n\n Required distance range<\/li>\n\n\n\n Accuracy requirement<\/li>\n\n\n\n Measurement frequency<\/li>\n\n\n\n Host dimensions<\/li>\n\n\n\n Power supply<\/li>\n\n\n\n Interface and cable length<\/li>\n\n\n\n Optical-window design<\/li>\n\n\n\n Operating environment<\/li>\n\n\n\n Sample acceptance method<\/li>\n<\/ul>\n\n\n\nThis information allows our team to recommend a starting configuration and identify the tests needed before design release.<\/p>\n\n\n\n
H\u00e4ufig gestellte Fragen<\/h2>\n\n\n\nWhat is the most important specification when selecting a laser rangefinder module?<\/h3>\n\n\n\n There is no single most important specification. Begin with the target and required distance, then evaluate accuracy, valid-reading rate, wavelength, divergence, aperture, measurement rate, minimum range, package, power and interface as one system.<\/p>\n\n\n\n
Is a 10 km module always better than a 5 km module?<\/h3>\n\n\n\n No. A 10 km module may be larger, heavier and more expensive. It may also have a longer minimum range or larger receive aperture. Choose the smallest practical model that provides enough verified margin for the actual target and environment.<\/p>\n\n\n\n
Is 1535 nm always better than 905 nm?<\/h3>\n\n\n\n No. A 1535 nm architecture can be well suited to compact long-range systems, while 905 nm can provide mature source and silicon-detector options for other designs. Compare the complete system, including target performance, detector, optics, safety assessment, size and cost.<\/p>\n\n\n\n
Does Class 1 on the module make the finished product Class 1?<\/h3>\n\n\n\n Not automatically. The host window, added optics, operating modes and accessible apertures may change the final safety boundary. The completed product should be assessed in its final configuration.<\/p>\n\n\n\n
How much beam divergence should a long-range module have?<\/h3>\n\n\n\n The correct divergence depends on target size and pointing stability. A narrow beam can place more energy on a compact target, but it also requires better alignment and lower pointing error. Calculate the beam footprint at the required distance before deciding.<\/p>\n\n\n\n
Should an OEM use TTL or RS422?<\/h3>\n\n\n\n TTL or a local UART interface may be suitable for a short, controlled connection. RS422 is often more practical for longer cables or noisier electrical environments. Use the supplier\u2019s electrical and protocol documentation for the exact model.<\/p>\n\n\n\n
How should two suppliers\u2019 maximum ranges be compared?<\/h3>\n\n\n\n Require both suppliers to state performance using the same target size, reflectivity, target angle, visibility, ambient light, temperature, valid-reading definition and measurement mode. Without common conditions, the two maximum-range figures are not directly comparable.<\/p>\n\n\n\n
Fazit<\/h2>\n\n\n\n Choosing a laser rangefinder module is not a search for the largest distance number. It is a process of matching the complete optical, electrical, mechanical and software channel to a defined measurement problem.<\/p>\n\n\n\n
Start with the target. Define the actual distance window and acceptance method. Compare candidates under common conditions. Then validate the module with the final window, mount, power supply, cable and host software.<\/p>\n\n\n\n
This approach may take more work during evaluation, but it reduces redesign, unexplained field failures and production variation after the module has been integrated.<\/p>\n\n\n\n
Referenzen<\/h2>\n\n\n\n\nInternational Electrotechnical Commission. IEC 60825-1:2014 \u2014 Safety of Laser Products, Part 1: Equipment Classification and Requirements.<\/em><\/li>\n\n\n\nLumexis Laser. 1535 nm Laser Rangefinder Module with Class 1 Eye Safety Standard.<\/em><\/li>\n\n\n\nSafran Vectronix Ultisense. Laser Range Finding LRF-Modules and Technical FAQ.<\/em><\/li>\n<\/ol>\n\n\n\n<\/p>","protected":false},"excerpt":{"rendered":"
A laser rangefinder module may appear suitable when its datasheet shows the required distance and accuracy. Problems often begin after the sample is installed. A dark target produces fewer valid readings. The host window creates internal reflections. The communication link becomes unstable. The module reaches its stated range only under conditions that do not match […]<\/p>\n","protected":false},"author":3,"featured_media":1909,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[1,29],"tags":[46],"class_list":["post-1906","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-blog","category-laser-basic-knowledge-101","tag-laser-ranging"],"acf":[],"_links":{"self":[{"href":"https:\/\/lumexislaser.com\/de\/wp-json\/wp\/v2\/posts\/1906","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/lumexislaser.com\/de\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/lumexislaser.com\/de\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/lumexislaser.com\/de\/wp-json\/wp\/v2\/users\/3"}],"replies":[{"embeddable":true,"href":"https:\/\/lumexislaser.com\/de\/wp-json\/wp\/v2\/comments?post=1906"}],"version-history":[{"count":1,"href":"https:\/\/lumexislaser.com\/de\/wp-json\/wp\/v2\/posts\/1906\/revisions"}],"predecessor-version":[{"id":1910,"href":"https:\/\/lumexislaser.com\/de\/wp-json\/wp\/v2\/posts\/1906\/revisions\/1910"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/lumexislaser.com\/de\/wp-json\/wp\/v2\/media\/1909"}],"wp:attachment":[{"href":"https:\/\/lumexislaser.com\/de\/wp-json\/wp\/v2\/media?parent=1906"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/lumexislaser.com\/de\/wp-json\/wp\/v2\/categories?post=1906"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/lumexislaser.com\/de\/wp-json\/wp\/v2\/tags?post=1906"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}