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Senior Engineer, Yilin

  • Tel : +86 28 81076698
  • WhatsApp : +86 18000520222

Customer Reviews

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Our team has been using ERDI products. They provide excellent services and can quickly solve the technical problems of the products. In particular, the perfection of their entire industrial chain in the field of distance measurement has greatly facilitated our secondary development

Alice Williams

We are very grateful to the technical engineers of ERDI for their on-site technical guidance at our company. Their visit has accelerated the research and development of our unmanned aerial vehicle (UAV) system. The products of ERDI have demonstrated remarkably stable performance.

Alfredo

We're extremely thankful to ERDI's engineers for coming to our office for detailed product training. Their expertise in communication modules has been a huge boon for our telecom project. The ERDI communication products we've incorporated into our system have shown outstanding stability, significantly enhancing the efficiency of our R & D work.

Jason Wills

FAQ

We are a national high-tech enterprise in China. For each product, we cover the entire industrial chain, ranging from research and development to manufacturing, and then to technical service solutions.

We provide samples and will try our best to keep the fees as low as possible. If you are our regular customer, we will offer some free samples.

You can contact sales online to get latest price; Or you can leave message to us. Our sales will contact you as soon as possible. And the price we provide is normally FOB price.

We accept payments via T/T, PayPal and LC.

Our minimum order quantity is 1 pc.

Please contact sales to confirm if we still have goods in stock. If yes, we will ship goods to you in one week time after we receive your payment. If not, please confirm with sales.

Usually we ship goods to customer via express, such as DHL, FedEx, UPS, TNT or airway transportation. You can also ask us to send goods to your forwarder in China. And we will pay domestic freight.

Yes, we provide OEM/ODM service. Lead time of customized products need to be confirmed with sales. Usually we will ship products after 2 months time after we receive customer’s payment.

Our skilled and friendly salesmen are ready to answer your questions about our products and services at any time, from product selection to application. Free technical consultation services are offered by request. Our experienced engineers are here to cooperate with you on your special requirements or OEM designs.

The specifications of our products are subject to change without notice. Please ask necessary questions before you order.

Laser products are warranted to conform to ERDI’ s published specifications and to be free from defects in materials and workman-ship for a period of twelve months starting on the shipping date. ERDI will repair or replace (at our decision) ASAP without charge, any part(s) found to be defective during the warranty period.

Our warranties do not cover damages due to misuse, negligence or accidents or due to installations, repairs or adjustments not authorized by ERD.

If a problem occurs and can’t be solved by phone, fax, or email, you may return products to ERDI. Please contact us for a Return Material Authorization (RMA) number prior to shipping the laser. We’ll provide you details on shipping and customs information with the RMA number. All lasers and components should be carefully packed to avoid damage during shipment.

Why does LiDAR use 905nm and 940nm bands?

Lasers with a wavelength of 905nm exhibit strong scattering and absorption capabilities in the atmosphere. This makes 905nm lidar safer for short-range ranging and obstacle avoidance applications, as its relatively short illumination distance meets the safety regulations for laser products to a certain extent.
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Lasers with a wavelength of 905nm exhibit strong scattering and absorption capabilities in the atmosphere. This makes 905nm lidar safer for short-range ranging and obstacle avoidance applications, as its relatively short illumination distance meets the safety regulations for laser products to a certain extent.

The reasons for lidar systems utilizing the 905nm and 940nm wavelength bands are primarily as follows:

Firstly, for the 905nm band, laser light at this wavelength exhibits strong scattering and absorption capabilities in the atmosphere. This characteristic makes 905nm lidar safer for short-range ranging and obstacle avoidance applications, as its illumination distance is relatively shorter, thereby satisfying, to a certain extent, the safety regulations for laser products. Furthermore, lidar operating in the 905nm band is not subject to particularly stringent restrictions and regulations in some regions, which also provides greater convenience for its practical applications.

Secondly, for the 940nm wavelength band, light at this wavelength exhibits high tissue penetration capability and excellent blood vessel visualization. Although these characteristics are more evident in medical applications, they also confer certain advantages to 940nm lasers in detecting and identifying targets. Furthermore, light in the 940nm band possesses good deep penetration ability and high spatial resolution, which are crucial for lidar in detecting and recognizing distant or small targets.

Why does LiDAR use 905nm and 940nm bands?

In general, the selection of 905nm and 940nm bands for LiDAR (Light Detection and Ranging) is due to their comparative advantages in terms of safety, regulatory compliance, and detection performance. However, the specific choice between these bands depends on the particular application scenario and requirements. In practical applications, the most suitable band may be chosen based on the specific circumstances to achieve optimal detection results.
Please note that while the above provides a general explanation, the specific technical choices may vary depending on different LiDAR manufacturers and application scenarios. Therefore, in specific applications, it is recommended to refer to relevant technical documentation or consult professionals for more accurate information.
ERDI TECH LTD develops and produces the LRF200A Series Laser Radar High Repetition Rate Range Finder Module. The LRF200A is a high-precision, long-range laser radar ranging module that is suitable for both indoor and outdoor applications. It excels in positioning or collision avoidance monitoring for shuttle cars, land transport vehicles, overhead cranes, and laterally moving vehicles. Its stable measurement capabilities and ability to detect extremely dark or shiny materials ensure it meets the demands of applications such as thrust control, shelf occupancy, or load height control in logistics. The product’s technical specifications guarantee it satisfies application needs, while its ultra-compact size and superior specifications ensure outstanding performance in any scenario. The main technical specifications are as follows:
Project NameTechnical parameters
Laser Light SourceLaser diode 905nm, ≤10mW; Class I laser eye safety requirements
Spot Area20×10cm（100m）
Weight＜50g
Power Supply Voltage24V（9V~36V）
Specification Range0.05-50m0.05-100m0.05-150m0.05-200m
Measurement Accuracy±0.05m±0.05m + (L-50) × 0.1%, where L is the measurement distance
Standard Measuring Range0.05m ~ 200m @ 80% reflectivity & visibility > 10km
Distance Resolution1cm
Absolute Accuracy±0.05m@50m
Output Interface3.3V TTL serial port output
Measurement Frequency20-20kHz (default 1kHz)
Return DataDirect measurement of distance, reflected light intensity, and working status
Operating Temperature－40℃~ +85℃
Storage Temperature－45℃~ +100℃
Operating Humidity0%~100% RH
Anti-ambient Light＞100kLux