1mm Accuracy Laser Distance Sensor 10m

Product Introduction

S91 is mainly composed of laser ranging core, wireless telex unit, wireless communication unit, mechanical casing, etc.  Measuring range 10m with high accuracy 1mm, small size 63*30*12mm, easy to assemble.

Short range distance sensor uses phase measurement technology, emits an infrared laser forward, and the laser is reflected to the single-photon receiving unit after encountering the target object. From this, we obtained the time when the laser was emitted and the time when the single-photon receiving unit received the laser. The time difference between the two is the time of flight of light, and the time of flight can be combined with the speed of light to calculate the distance.

Data Interface:

- Communication Interface: RS485, Support long-distance transmission, easy integration, easy installation, suitable for a variety of devices.

Protocol:

USART interfaces

Baud rate: the default baud rate is 19200bps or automatic detection (9600bps to 115,200 BPS is recommended)

Start bit: 1 bit

Data bit: 8 bits

Stop bit: 1 bit

Parity bit: None

Flow control: None

Measurement mode:

There are two measurement modes: single measurement and continuous measurement.

A single measurement commands a result at a time;

If the host does not interrupt the continuous measurement, the continuous measurement distance results up to 255 times.

Features

1. With IP54 protective shell, and small size, easy to install and apply, it also enhances the function of protecting the module and reduces the static electricity of the module

2. Wide voltage output 5~32V, low power consumption, provides more choices for large voltage range in industrial scenarios, and also avoids possible damage to the module by the voltage power supply.

3. The RS485 industrial interface supports long-distance stable transmission, providing more favorable help for signal transfer.

4. light weight, easy to install, easy to fix.

5. The connector is designed to facilitate the selection of different output interfaces for testing.

6. The measurement data is stable and supports single measurement/continuous measurement function.

Parameters

Note:

1. Under bad measure condition, like environment with strong light or the diffuse reflectance of measuring point over-high or low, the accuracy would have bigger amount of error: ±1 mm± 50PPM.

2. Under strong light or bad diffuse reflectance of target, please use a reflection board

3. Operating temperature -10 ℃~50 ℃ can be customized

Application

Laser ranging sensors have been widely used in:

- Medical industry, precision measurement of human distance, intelligent pharmacy storage measurement, medical device positioning, etc

- measurement of distance traveled by large structural components, such as elevator shafts;

- Detection of structural deformation of large buildings, such as tunnels;

- Long-distance measurement, such as aircraft altitude, engineering surveying and mapping;

The characteristics of laser measuring distance sensor are long measuring distance, high precision, non-contact and high measuring frequency.

Customer Feedback

The precision of the laser modules is remarkable, even without using a reflector. Furthermore the customer service is very friendly and helpful. The units arrived preconfigured for instant use via bluetooth, so operating them worked out of the box. Shipping via FedEx from China to Germany took only a few days. We really can recommend the seller, the service, as well as the product.

----Bjoern,Germany

Did a side by side comparison with a a Leica disto x4 and the measurements were the same.  This is much higher accuracy and precision than expected.  The USB dongle and pre-configured test software was an excellent way to get started, but it was just as easy to configure for direct serial connection to raspberry pi.  Very pleased with performance so far!

----Jonathan,United States