TECHPRIBOR JSC
AIRBORNE EQUIPMENT

JSC Techpribor is a Russian air-instrument-making enterprise with 60-years of experience in development, manufacturing, certification and technical in-operation follow-up of different airborne equipment for all Russian airplanes and helicopters.

REGISTER OF KEY ACTIVITIES
The activities we offer include: on-board mass and balance systems; operating fluid, oil and other air-liquids quantity indicating systems; mass fuel flow-meter systems; gas-turbine aircraft engines monitoring systems; aircraft engines vibration indicating systems; ship diesel engines automation systems; flight data recorder systems for airplanes and helicopters; fuel and oil level, flow, quantity and temperature sensors; vibration pickups and fuel tanks water-deposit sensors.

GAS-TURBINE AIRCRAFT ENGINE MONITORING AND DIAGNOSTIC SYSTEM
Features of the gas-turbine aircraft engine monitoring and diagnostic system include: analogue and discrete signals reception from engine-mounted sensors and data reception from linked airborne systems according to ARINC-429; data formation and output by single commands to airborne linked systems according to ARINC-429; measuring parameters control by fixed and floating limits; power plant control and 'event' output when an error is detected; engine operating time data formation, storage and output to airborne systems; as well as automatic hardware-software control of sensors serviceability and their communication lines during flight, and events data recording in non-volatile memory for post-flight analysis.

GAS-TURBING AIRCRAFT ENGINE VIBRATION INDICATING SYSTEM
The gas-turbine aircraft engine vibration-indicating system features include: engine curls rotation frequency measurement with two independent measuring channels, vibration level measurement with three engine-mounted piezoelectric sensors using digital broadband filters on each vibration sensor or digital monitoring narrow-band filters on curls main harmonics frequencies, as well as a comparison of measured and extreme limits of vibration, 'excessive vibration' and 'vibration limit' signals formed when limits are exceeded.

FUEL QUANTITY INDICATING SYSTEM ON MANEUVERABLE AIRPLANES

JSC Techpribor delivers fuel quantity indicating system on maneuverable airplanes, this features:

• Total fuel mass measuring according to bypass, refueling and external fuel tanks drop
• Aerial refueled fuel mass measurement
• Fuel mass flow measurement on each engine
• Control signals formation by fuel system aggregates during fueling, aerial refueling, fuel tank depletion and fuel dumping
• Formation and output data on airplane fuel quantity and fuel system aggregates operation to airborne systems according to ARINC-429 standard

HELICOPTER FLIGHT DATA CONTROL AND DIAGNOSTICS SYSTEM
Helicopter flight data control and diagnostics system offers the following features: preflight automatic control and 'serviceability' signal output; data collection, conversion and registration during flight for further post-flight analysis of engine and helicopter airborne systems operation; as well as registered data preservation in crash-survivable flight data recorder in case of a helicopter crash.

FUEL QUANTITY INDICATING SYSTEM ON AIRLINERS
Fuel quanitiy indicating system on airliners incorporate:

• Fuel mass measurement in each tank and airplane total fuel mass calculation
• Calculation of total fuel mass and fuel mass on airplane sides under fuel flow data for each engine
• Formation of signal in regards to excess permissible difference between values of total fuel mass, measured by fuel flow meter computed by fuel flow data by each airborne engine
• Tanks fuel temperature calculation and temperature near fuel crystallization signal formation
• Reserve remaining fuel on each airplane side and fuel consumed reservoirs signals formation
• Formation of signal on free water existence in fuel tanks
• Automatic and manual fueling control signals formation
• Automatic monitoring of sensors serviceability, communication links, measuring-processing block and monitoring results preservation in non-volatile memory for post-flight analysis of system operation
• Airplane fuel quantity data formation and output to airborne systems according to standards ARINC-429 and MIL-STD-1553
  

Techpribor JSC
Russia, St-Petersburg
Tel: +7- 812- 389- 5897
Fax: +7- 812 -389 -8889
Email: kb_tis@infopro.spb.su
Email: info@techpribor.spb.ru

Engine control and diagnostics unit	Vibration control equipment	Fuel quantity and flow control system	Helicopters parameters control, diagnostics and registration systems	Fuel quantity indicating systems