Attention:
Two models of Nevzorov Probes exist (CWCMB2 and CWCMU4) which operate after the same principle. Each system consists of a control box and a sensor head.
Operation of the Nevzorov probes requires experienced staff on board the aircraft.
Summary
The Sky Tech Nevzorov-probe is an aircraft probe designed for measurements of liquid and total (ice plus liquid) water content (LWC and TWC) of clouds and fogs in the range of 0.003 g/m3 to 3 g/m3. The Nevzorov-probe belongs to the group of so-called "hot wire constant temperature probes". A sensor unit consists of two sensors: collector and reference. The principle of operation is based on separate measurements of power needed to compensate heat losses caused by evaporation of cloud water and convective losses on the collector sensor and power needed to compensate convective heat losses on a reference sensor. Liquid and total water content are measured by separate LWC and TWC sensors, mounted on the same sensor vane.
Sensor-Info: aircraft:bt-67:nev, 6951
| Manufacturer | SkyTech Research Limited |
|---|---|
| Model | CWCMB2 and CWCMU4 |
| Serial No. | n/a |
| Type | water content analyzer |
Contacts
Available devices and Specifications
| Name | Model | Serial Number |
|---|---|---|
| Nevzorov Probe | CWCM-B2 | |
| Nevzorov Probe | CWCM-U4.1 |
Specifications of Nevzorov Probe (without mounting)
Dimension Control Box (L x W x H) |
350 cm x 390 x 50 mm |
|---|---|
Weight Control Box |
4.3 kg |
Power Supply |
28 VDC |
Data interface |
analogue data (V) |
Position
| Origin Description: | The sensor head of the Nevzorov Probe is installed in the nose compartment of the aircraft. The electronic control unit is installed in a rack in the aircraft cabin. |
Data logging, storage and archiving
Logged parameter
| Parameter | Sensor Output Type | Unit |
|---|---|---|
| liquid water content | water content | g/cm3 |
| ice + liquid (total) water content | water content | g/cm3 |
Rawdata storage on board
Data archiving on land
DMS
Module name |
B809 Nevzorov Sonde, B438 Nevzorov Sonde |
|---|---|
Device name |
Nevzorov Probe |
Parameters |
ErrorText; LWC Probe [V]; Status; TWC Probe [V] |