LCJ Capteurs’ commitment to quality starts on the drawing table

A conventional wind vane/anemometer features mechanical rotating parts. These moving parts expose the sensor to failure. The ultrasonic sensor has been designed to avoid any mechanical part to ensure the best possible and most reliable operation.

All assembly and quality control processes are handled in our own office.
Each sensor is set-up and tested in our own wind tunnel and drizzle chamber. During these tests, all data is logged for each product against the serial number.

Sensors’ accuracy

The sonic wind –vane/anemometers show very stable results over the long term and without maintenance.
Tests on LCJ Capteurs sonic sensors have been run by many independent laboratories such as: Ecole Centrale de Nantes, LCPC, CERN, Météo-France, KNMI, etc…

Each sensor is tested before despatching

Test en soufflerie

Wind tunnel testing facility in LCJ Capteurs’ office

Wind tunnel

This device generates winds from 2m/s to 40m/s (4 knots to 80 knots) for accurate measurement. A PC driven mechanical system generates the sensor’s rotation. This allows testing the wind-vane and anemometer functions at the same time.
A 19 knots test is run for every sensor. In addition, random selected sensors are tested with 4, 10, 15, 30, 40 and 80 knots.
Test reports for specific wind speeds can be produced on request.

See here a sample of set-up test:

Laboratory oven

Each sensor we ship out has passed tests in a climatic chamber from -10°C to +50°C for the  le CV3F and from -15°C to +55°C for the CV7.
Measurements are logged at each end of the temperature range and at +20°C.
The temperature step is 2°C per minute followed by a 1 hour stable test.
Random samples are tested on 5 temperature points and have thermal shocks

EMC compliance

LCJ Capteurs products comply to EC regulations.
EMC compliance is confirmed by an independent laboratory.

Sensors tested in-field

The CV3F was the first ultrasonic sensor sold by LCJ CAPTEURS in 2000. It has proven its reliability by having a one year in-field test mounted on the rear stand of French trawlers from Boulogne and Lorient, fishing in North Sea and Irish Sea. AS a result, since 2001 we know that the CV3F sensor is not afraid of bad weather, sea water and vibrations!

For offshore racers, it is a season on the Figaro 1 « Mc DONALD’s » (skipper Yannick LEMONNIER) which has demonstrated all the benefits of the CV3F on a sailing boat. In light air conditions, any breeze is detected helping the fine tuning of sails. In heavy winds the non-moving parts concept brings reliability. LCJ CAPTEURS is now supplying most of the recent offshore race boats whose teams have understood all the benefits brought by the ultrasonic technology.
To name a few, LCJ Capteurs has been chosen by skipper of Mini6.50s, Class40s, America’s Cup syndicates, Hydroptère.ch…

For the last 12 years LCJ Capteurs has also been working on the supply of sensors in various fields such as industry, security, leisure parks, fire-brigades, wind farms, vehicles, drones, beacons…