Dragonfly^®

Passive sensor

Charge-output piezo strain sensor — clean signal, zero on-sensor electronics.

Charge sensitivity: -17 pC/µε
Measurement range: ±3000 µε
Noise [0.1-10 Hz]: 3.4 nε RMS
Bandwidth: 0.01 Hz → 45 kHz

Technical specifications

The full datasheet. Nothing hidden.

Piezo & electrical

Charge sensitivity (25 °C): -17.0 ±10 % pC/µε
Temperature sensitivity (-55 to +40 °C): 200 ±150 ppm/K
Transverse sensitivity |Kt|: < 4 %
Measurement range: ±3000 µε
Non-linearity (±500 µε): < 1 %
Operating temperature range: -55 to +140 °C
Capacitance Cp (1 kHz, 1 Vp-p, 25 °C): 6.3 ±20 % nF
Parallel resistance Rp: > 50 MΩ
Series resistance Rs: < 1 Ω
Bandwidth (Kistler 5167A): < 0.01 Hz to > 45 kHz

Noise floor

RMS noise [0.1 to 10] Hz: 3.4 nε
RMS noise [10 to 20 k] Hz: 5.0 nε

General

Fatigue life: > 8 × 10⁶ cycles at ±1000 µε
Weight: 0.1 g
Connector: U.FL / IPEX1
Maximum voltage: 30 V
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® Passive is engineered to anchor the same level of measurement precision across every industry that relies on accurate vibration data.

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