24.07.2017 According to the rules of the RMRS for the equipping of sea-going ships, part V "Navigation equipment".

4.5 SENSORS OF SHIP'S HYDROMETEOROLOGICAL COMPLEX.

4.5.1. Meteorological sensors or a combined sensor of the ship's hydrometeorological complex shall be installed in the unperturbed elements of the ship's structure to the wind zone on the projecting parts of the highest superstructure of the bow of the ship or on the mast, if possible, in the center of the vessel. 

4.5.2The distance from the sensors (combined sensor) to the chimneys and the ventilation output devices must be at least 10 m. In the case of mounting sensors on the mast rails, the distance from the sensors to the mast must be at least three mast diameters, if it is an integral structure, and not less than two mast diameters, if it has a proprietary design.

Meteodatachik - is a device designed to measure data such as:

• Direction and speed of the wind;
• Relative humidity;
• Air temperature and pressure;
• The amount and intensity of precipitation (for example, during rain).

  There are mechanical, thermal and ultrasonic weather sensors:

• Mechanical work in the likeness of an air screw, which is driven by the rotation of the cup wheel. CHE device is a turntable with blades (cups). When the wind is flowing, the moving part of the device rotates. Depending on the strength of the effect, the number of revolutions performed is read. The information received is converted into data that is translated to the device. 
• Thermal measures decrease the temperature of its own heating element.
• Ultrasonic / acoustic measure the speed of sound, based on the direction and speed of the wind. Usually, the sensors are made of durable stainless materials that withstand harsh environmental conditions.
• Wireless digital   - work on the Internet. The data is read in real time. Specialized sensors measure the necessary parameters of the atmosphere and transmit information to the display of the main unit in the form of graphs, registering them in an electronic log. 

Mechanical weather sensors      


              
Ultrasonic weather sensors
Wireless weather sensors Meteorological sensors are controlled by a keyboard, a trackball or the sensor. The devices are powered by solar panels, batteries or special adapters. The connection is made directly. Modern systems for reading meteorological information, namely anemometers and weathercocks meet such requirements as:     


 

• Integration with PC (via USB interface)
• Built-in Memory
• Increased accuracy and speed, through the introduction of electronic components in the circuit
• A package of necessary modules and programs for remote reading of data and remote control.