MOOG A88594-004 LVDT Linear Position Transducer

Technical Specifications

Model:A88594-004

Brand:MOOG

Product type:Miniature LVDT Linear Position Transducer

Structure:Contactless differential variable transformer

Measuring range:±2.5mm

Excitation:5V AC, 5kHz

Output:Differential analog signal

Dimension:32mm*8mm

Weight:0.04kg

Operating temperature:-20℃ ~ +120℃

Storage temperature:-40℃ ~ +130℃

Relative humidity:10~90% non-condensing

Certification:CE

System compatibility

A88594-004 is MOOG miniature LVDT position sensor.It is matched with MOOG D633/D634 series servo valves,widely used in material test bench,vibration simulation and turbine DEH hydraulic control system.It is core spare part for servo valve overhaul.

Function

A88594-004 is non-contact LVDT transducer.It continuously detects the real-time displacement of servo valve main spool,converts mechanical position into analog electrical signal and feeds back to servo amplifier,to realize closed-loop spool position control.

Installation

Install LVDT inside servo valve body,align the core with valve spool.Fix housing firmly and connect shielded signal cable.Complete zero calibration after assembly.Take anti-static protection during handling.

Interface

‑LVDT excitation and differential signal wiring terminals

‑Sensor identification marking

Feature

MOOG compact high resolution LVDT sensor.Typical faults:coil aging,signal cable damage,core jamming.Inspect signal output during valve maintenance.

Diagnostic

Fault phenomenon:servo valve zero drift,instability,poor repeatability.Check LVDT signal and replace transducer when coil fails.

Product Brief

A88594-004 is MOOG miniature contactless LVDT linear position transducer,specially used for spool position feedback of electro-hydraulic servo valves.It is key feedback component for precision hydraulic servo system maintenance and replacement.