GlobalTest measuring sensors and vibration instrumentation

Industrial sensors and measuring instruments from GlobalTest provide high precision vibration monitoring, dynamic pressure tracking, and acoustic emission diagnostics for heavy machinery.

Piezoelectric accelerometers and vibration sensors series AP and AR

Piezoelectric accelerometers from GlobalTest in series AP and AR are engineered to measure shock and vibration accelerations across machinery diagnostic skids. The transducers feature single-axis and triaxial builds with charge output or integral IEPE preamplifiers for clean signal transfer.

Hermetic stainless steel housing delivering rugged protection up to ingress grade IP68
Broad operating thermal envelope of the piezoelectric element from minus 60 to plus 400 °C
High mounted resonance frequency of the internal crystal with minimal transverse response
Selection of vibration sensors AP1065, AP2018, AP4000, and AR2038 using nameplate parameters

Dynamic and pulsating pressure sensors series PS and MP

Piezoelectric dynamic pressure sensors from GlobalTest in series PS and MP measure high-speed pressure fluctuations across pneumatic and hydraulic pipework. The units monitor turbine combustors, reciprocating compressors, and high-pressure fluid pipelines under dynamic pressure cycles.

Detection of high-frequency fluid pulsations over wide measurement limits up to 100 MPa
Resilient sensing diaphragm built to withstand hydraulic hammer and aggressive process media
Engineered architecture with integrated thermal balancing to prevent baseline drift
Selection of pressure transducers PS17B, MP10, and MP20 matching pipeline connection ports

Vibration velocity transmitters and eddy current probes series AV and VA

Vibration velocity transmitters series AV and eddy current displacement probes series VA from GlobalTest provide continuous tracking of turbomachinery kinematics. The units output a standardized 4–20 mA current loop for direct connection to plant automation platforms and protection controllers.

Direct determination of true RMS vibration velocity conforming to ISO 10816 standards
Non-contact measurement of radial shaft runout and axial thrust displacement via eddy probes
Standardized 4–20 mA analog output or digital telemetry for industrial control networks
Selection of transmitters AV101, AV102, and eddy current sensors VA by probe gap size

Dynamic force sensors and impulse modal hammers series MD and AU

Force sensors in series MD and modal excitation impulse hammers series AU developed by GlobalTest evaluate dynamic structural rigidity and modal response. The instruments record transient impact spikes and cyclic mechanical force profiles with outstanding measurement linearity across all bands.

Measurement of dynamic tensile and compressive force impulses up to limits of 500 kN
Interchangeable impact tips for excitation hammers to shape desired impulse frequency bands
High mechanical stiffness of the sensing element preventing distortion of structural dynamics
Selection of force cells MD and calibrated impulse hammers AU by peak force envelope

Acoustic emission transducers series GT for diagnostic inspection

Acoustic emission transducers from GlobalTest in series GT detect developing micro-cracks, structural fatigue, and fluid leaks across pressurized equipment. The probes exhibit high sensitivity to ultra-high frequency stress waves propagating through metallic vessels, composites, and welded seams.

Detection of acoustic emission burst signals across a frequency envelope from 20 to 1000 kHz
Integrated low-noise preamplifier ensuring clean signal transfer over extended cable runs
Corrosion-resistant metal shell with comprehensive shielding against plant electrical noise
Selection of acoustic probes series GT by center resonance frequency and operating environment

Signal conditioning modules and charge amplifiers series AG

Electronic signal conditioning units and charge amplifiers in series AG from GlobalTest adapt piezoelectric sensors to data acquisition units and analyzers. The modules perform precision charge-to-voltage conversion, frequency filtering, and signal normalization for subsequent digital processing.

Precision charge amplification factors engineered with negligible phase distortion
Integrated high-pass and low-pass analog filters suppressing undesirable electrical ripple
Modular construction for rack instrumentation frames, industrial cabinets, or bench work
Selection of AG conditioning electronics, power supplies, and noise-free sensor cables

Shear crystal design and high temperature stability of GlobalTest accelerometers

Piezoelectric accelerometers from GlobalTest in series AP and AR utilize proprietary shear sensing elements engineered from precision quartz and ferroelectric ceramics.

The mechanical shear architecture suppresses base strain sensitivity and limits thermal drift during intense dynamic vibration tests.

Hermetically welded stainless steel enclosures protect sensitive crystal stacks against aggressive industrial fumes, moisture ingress, and ambient electromagnetic interference.

The sensors are supplied with integrated IEPE circuitry or as high temperature charge output modules capable of operating up to plus 400 degrees Celsius across heavy turbines and metallurgical rolling mills.

Dynamic pressure sensing and fluid pulsation detection with PS transducers

Dynamic pressure transducers series PS and MP developed by GlobalTest measure high-speed pressure fluctuations across combustion chambers, reciprocating compressor manifolds, and hydraulic fluid circuits.

High-strength metallic diaphragms withstand cyclic pressure surges without plastic deformation under hydraulic spikes up to 100 MPa. Built-in annular thermal balancing components prevent baseline drift when process fluid temperatures fluctuate dynamically.

Standardized threaded ports enable direct installation into process pipe taps, providing reliable data feeds for reciprocating machinery health monitoring networks.

Kinematic condition monitoring of turbomachinery using AV velocity transmitters

Vibration velocity transmitters series AV and eddy current displacement probes series VA from GlobalTest provide continuous protection for turbomachinery bearings and rotating shafts.

Internal analog integrators convert raw acceleration into true RMS vibration velocity, delivering standardized 4 to 20 mA loop outputs directly into plant DCS and PLC systems.

Non-contact eddy current probes VA track dynamic radial runout and axial thrust position within oil film sleeve bearings, protecting rotating impellers and shafts from destructive mechanical rub against stationary stator walls during unit startups.

Structural modal evaluation and impact force analysis with MD and AU instrumentation

Structural resonance frequencies, transfer functions, and dynamic mechanical stiffness are evaluated using GlobalTest series MD dynamic force transducers and calibrated modal impulse hammers series AU.

High intrinsic mechanical rigidity of quartz crystal stacks prevents distortion of structural dynamics during excitation. Replaceable impact tips made of steel, aluminum, and polymer materials tailor impact impulse duration to target frequency bands.

Force transducers in series MD record cyclic tension and compression loads on vibration test rigs, preserving calibration linearity over millions of testing cycles.

Acoustic emission tracking for early micro-crack and leak detection with GT probes

Acoustic emission transducers series GT from GlobalTest detect ultra-high frequency elastic stress waves produced by growing micro-fissures in metallic structures, plastic yield deformation, and pressurized fluid leaks.

The probes span an operating bandwidth from 20 kHz to 1 MHz, filtering out ambient low-frequency mechanical noise from operating factory drives.

Internal low-noise preamplifiers adapt high crystal output impedance to coaxial transmission cables, enabling signal transmission over hundreds of meters without attenuation to multi-channel non-destructive inspection systems.

Signal conditioning architecture and noise suppression with AG charge amplifiers

Signal conditioning modules and charge amplifiers in series AG by GlobalTest link high-impedance piezoelectric sensors to industrial acquisition units and monitoring platforms. Differential input stages suppress common-mode electrical noise and ground loops typical of heavy industrial environments.

Integrated steep-rolloff analog low-pass and high-pass filters isolate the desired frequency spectrum from line interference. The instrumentation modules are built in standardized rack formats for central control cabinets and in weatherproof field enclosures for localized installation.

GlobalTest and model names are trademarks of their respective owners and are used only to identify the equipment for which we source parts. SpareX is not an official dealer, distributor or representative of GlobalTest and is not affiliated with the trademark owner. Origin, documents and warranty are stated for each item in the quotation.