Dragonfly^®

IEPE sensor

IEPE-compatible piezo strain sensor — drops into any ICP chain.

Sensitivity (3 grades): 1.08 → 108 mV/µε
Max range (×1 grade): ±3000 µε
Lowest noise (×100 grade): 4 nε RMS
Bandwidth (×1 grade): 0.02 Hz → 100 kHz

Technical specifications

The full datasheet. Nothing hidden.

Piezo & electrical (×1 / ×10 / ×100 grades)

Sensitivity (25 °C): 1.08 / 10.8 / 108 ±10 % mV/µε
Temperature sensitivity (-55 to +40 °C): 210 / 240 / 500 ±150 ppm/K
Transverse sensitivity |Kt|: < 4 %
Measurement range: ±3000 / ±500 / ±50 µε
Non-linearity (±500 µε): < 1 %
Operating temperature range: -55 to +125 °C
Bandwidth: 0.02 / 0.04 / 0.4 Hz to > 100k / > 100k / 80k Hz
Discharge time constant: 50 / 25 / 2.5 s
Constant current bias: 2 to 20 mA
Voltage compliance: 18 to 24 V
Equivalent capacitance Ceq: 4.53 / 1.255 / 0.1607 nF
Output bias voltage: 12.0 ±2 V
Output impedance (> 1 kHz): < 30 Ω

Noise floor (constant current 4 mA, by grade)

RMS noise [0.02 to 10] Hz: 27 / 12 / 4 nε
RMS noise [10 to 20 k] Hz: 15 / 5 / 4 nε
Spectral noise @ 1 Hz: 5300 / 1900 / 1500 pε/√Hz
Spectral noise @ 10 Hz: 1700 / 570 / 460 pε/√Hz
Spectral noise @ 100 Hz: 520 / 180 / 150 pε/√Hz
Spectral noise @ 1 kHz: 170 / 60 / 50 pε/√Hz
Spectral noise @ 10 kHz: 52 / 18 / 15 pε/√Hz

General

Fatigue life: > 8 × 10⁶ cycles at ±1000 µε
Weight: 0.7 g
Connector: U.FL / IPEX1
Maximum voltage: 30 V
Maximum current: 30 mA
Maximum temperature: 150 °C (exposure 4 h)
Minimum bending radius: 2 cm (sensing area)

Download the datasheet

Where it excels

Deployed across 9 sectors.

From design validation to predictive maintenance, the Dragonfly® IEPE is engineered to anchor the same level of measurement precision across every industry that relies on accurate vibration data.

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