MV-26B-V

MV-26B-V vibration sensor

MV-26B-V is a specialized aircraft vibration sensor used in engine vibration monitoring systems. The sensor converts mechanical vibration of gas turbine engine components into an electrical signal proportional to vibration acceleration. In the supplied context, MV-26B-V is associated with Il-76 aircraft and D-30KP engines, depending on configuration and documentation. The sensor is part of onboard equipment used to monitor the mechanical condition of engine assemblies during operation.

Function of MV-26B-V in engine monitoring

The main function of MV-26B-V is measurement of vibration acceleration on engine structures. The sensor detects mechanical oscillations from rotor supports, bearing assemblies, compressor and turbine areas, then generates an electrical output signal for the aircraft vibration monitoring system. This signal allows onboard equipment to assess vibration levels and detect abnormal engine behavior. Timely vibration monitoring helps identify rotor imbalance, bearing defects or uneven aerodynamic loading before they develop into more serious engine faults.

Piezoelectric operating principle

MV-26B-V is described as a piezoelectric vibration transducer. Its sensitive element uses the direct piezoelectric effect: under vibration loads, the piezoelectric plate package generates an electrical charge proportional to mechanical acceleration. This charge signal is then processed by the vibration monitoring equipment. Piezoelectric construction is commonly used for engine-mounted vibration sensors because it allows measurement of dynamic vibration over the frequency range typical for rotating machinery.

Installation on D-30KP engines

According to the supplied context, MV-26B-V is installed on D-30KP turbojet engines and their modifications, which are used on Il-76 heavy transport aircraft. The sensor is rigidly mounted directly on engine rotor support housings, typically in compressor or turbine areas. A rigid bolted connection is necessary to transfer mechanical vibration accurately from the engine structure to the sensitive element of the sensor. Installation location and orientation should be confirmed by the applicable engine and aircraft maintenance documentation.

Construction and environmental resistance

The MV-26B-V sensor has a sealed cylindrical steel housing with a triangular flange base for bolted attachment. This construction provides mechanical rigidity and protects the internal piezoelectric element from environmental exposure. The sensor is intended for operation under high temperature variation, humidity, pressure changes and exposure to aviation oils or fuel vapors according to the supplied context. The sealed housing and flange mounting are important for stable signal output in engine-compartment conditions.

Identification and ordering of MV-26B-V

Before ordering MV-26B-V, the buyer should confirm the aircraft type, engine type, vibration monitoring system, required quantity, condition and documentation set. It is also important to confirm whether the request is for MV-26B-V specifically or for a related MV-series vibration sensor such as MV-25B-V. The sensor may be required for engine vibration monitoring repair, replacement of a defective transducer, maintenance stock or support of Il-76 / D-30KP engine operation. Product passport, part number, decimal number, test records and inspection documents should be checked before shipment.

Product Type: Aircraft vibration sensor / piezoelectric vibration transducer
Designation: MV-26B-V
Russian Designation: МВ-26Б-В
Part Number: 6Л2.782.001-5 ПС
Decimal Number: 6Л2.782.001-5 ПС
Alternative Designations: MV26B-V, MV-26B, МВ26Б-В, МВ-26Б
Alternative Product Names: Vibration sensor, vibration acceleration sensor, piezoelectric accelerometer, vibration transducer
Function: Conversion of mechanical vibration into an electrical signal proportional to vibration acceleration
Application / Where Used: Aircraft gas turbine engine vibration monitoring systems
System / Installation Area: Engine vibration monitoring equipment / engine-mounted sensor locations
Compatible Aircraft / Equipment: Il-76 aircraft according to source context and documentation
Associated Engines: D-30KP turbojet engines and modifications according to source context
Associated Monitoring Equipment: IV-200 type onboard vibration monitoring equipment according to source context
Controlled Parameter: Vibration acceleration; in IV-type systems may be converted into vibration velocity according to source context
Operating Principle: Piezoelectric conversion using direct piezoelectric effect
Sensitive Element: Piezoelectric plate package according to source context
Standard Operating Frequency Range: 10 to 1000 Hz according to source context
Output Signal: Electrical charge proportional to mechanical acceleration
Construction: Sealed cylindrical steel housing
Mounting Type: Rigid bolted mounting on triangular flange
Mounting Area: Rotor support housings, compressor or turbine area depending on engine documentation
Environmental Resistance: High temperature variation, pressure changes, humidity, aviation fuel and oil exposure according to source context
Condition: New / As-Stored / Overhauled / Serviceable, depending on availability
Technical Documentation: Product passport, engine maintenance documentation, vibration monitoring system documentation, wiring diagram and test records if available

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In Stock — items available in stock at the Dubai warehouse are dispatched within 5–10 business days after receiving 100% prepayment.

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Pre-Order — made-to-order products are manufactured and delivered within an average of 45–60 business days. Payment terms: 50% advance payment to start production, with the remaining 50% paid before dispatch from the Dubai warehouse after full readiness for shipment.

Returns & Changes (Restocking Fee)
For selected items, a RESTOCKING FEE of 10% may apply in case of return, order cancellation, or changes to the order specifications. This condition applies only to certain products and is confirmed at the order approval stage.

Warranty
All products are covered by a standard 6-month warranty.
Extended warranty is available upon request and is agreed individually; it may affect the final product price.