Model 352C23 Miniature ICP Accelerometer

Model 352C23 miniature ICP accelerometer is designed for shock and vibration measurements in space-restricted locations and on small, lightweight structures. The unit weighs 0.2 g and occupies only a 0.11 x 0.23 in. (2.8 x 5.7 mm) footprint, for minimal mass loading of the test article.

 

The device is ideally suited for vibration studies and package testing of circuit boards, disc drive mechanisms, cellular phones, PDAs, and other consumer electronics. Other applications include NVH studies on automotive parts and modal analysis and structural testing of solar panels and satellite components.

 

The sensor is structured with a shear mode, piezoceramic sensing element, and produces a 5 mV/g output signal, with frequency response from 2 to 10k Hz and a measurement range of 1,000 g's. Additional features include an anodized aluminum housing, electrical ground isolation, 10,000 g shock limit, 3-56 coaxial electrical connector, and a 10 ft (3 m) replaceable low-noise cable.

• Sensitivity: (±20%) 5 mV/g (0.5 mV/(m/s²))
• Measurement Range: ±1,000 g pk (±9,810 m/s² pk)
• Broadband Resolution: 0.003 g rms (0.03 m/s² rms)
• Frequency Range: (±5%) 2.0 to 10,000 Hz
• Sensing Element: Ceramic
• Weight: 0.007 oz. (0.2 gm)

PERFORMANCESensitivity (±20 %)5 mV/g (0.5 mV/(m/s²))Measurement Range±1,000 g pk (±9,810 m/s² pk)Frequency Range (±5 %)2.0 to 10,000 HzFrequency Range (±10 %)1.5 to 15,000 HzFrequency Range (±3 dB)0.7 to 25,000 HzResonant Frequency?70 kHzBroadband Resolution (1)0.003 g rms (0.03 m/s² rms)Non-Linearity?1 %Transverse Sensitivity?5 %ENVIRONMENTALOverload Limit (Shock)±10,000 g pk (±98,000 m/s² pk)Temperature Range (Operating)-65 to +250°F (-54 to +121°C)ELECTRICALExcitation Voltage18 to 30V DCConstant Current Excitation2 to 20 mAOutput Impedance?200 OhmOutput Bias Voltage7 to 12V DCDischarge Time Constant0.24 to 1.0 secSettling Time (within 10% of bias)<3 secSpectral Noise (1 Hz)1,500 µg/?Hz (1,4715 (µm/sec2)/?Hz)Spectral Noise (10 Hz)400 µg/?Hz (3,924 (µm/sec2)/?Hz)Spectral Noise (100 Hz)120 µg/?Hz (1,177 (µm/sec2)/?Hz)Spectral Noise (1 kHz)30 µg/?Hz (294 (µm/sec2)/?Hz)Spectral Noise (10 kHz)20 µg/?Hz (196 (µm/sec2)/?Hz)Electrical Isolation (Base)>1,000,00,000 OhmPHYSICALSize - Height.11 in. (2.8 mm)Size - Length0.34 in. (8.6 mm)Size - Width0.16 in. (4.1 mm)Weight0.007 oz. (0.2 gm)Sensing ElementCeramicSensing GeometryShearHousing MaterialAnodized AluminumSealingEpoxyElectrical Connector3-56 Coaxial JackElectrical Connection PositionSideMountingAdhesive