Model 352C23 Miniature ICP Accelerometer
Description
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.
Specs
- 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)
| PERFORMANCE | ||
|---|---|---|
| Sensitivity (±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 Hz | |
| Frequency Range (±10 %) | 1.5 to 15,000 Hz | |
| Frequency Range (±3 dB) | 0.7 to 25,000 Hz | |
| Resonant Frequency | ≥70 kHz | |
| Broadband Resolution (1) | 0.003 g rms (0.03 m/s² rms) | |
| Non-Linearity | ≤1 % | |
| Transverse Sensitivity | ≤5 % | |
| ENVIRONMENTAL | ||
| Overload Limit (Shock) | ±10,000 g pk (±98,000 m/s² pk) | |
| Temperature Range (Operating) | -65 to +250°F (-54 to +121°C) | |
| ELECTRICAL | ||
| Excitation Voltage | 18 to 30V DC | |
| Constant Current Excitation | 2 to 20 mA | |
| Output Impedance | ≤200 Ohm | |
| Output Bias Voltage | 7 to 12V DC | |
| Discharge Time Constant | 0.24 to 1.0 sec | |
| Settling Time (within 10% of bias) | <3 sec | |
| Spectral 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 Ohm | |
| PHYSICAL | ||
| Size - Height | .11 in. (2.8 mm) | |
| Size - Length | 0.34 in. (8.6 mm) | |
| Size - Width | 0.16 in. (4.1 mm) | |
| Weight | 0.007 oz. (0.2 gm) | |
| Sensing Element | Ceramic | |
| Sensing Geometry | Shear | |
| Housing Material | Anodized Aluminum | |
| Sealing | Epoxy | |
| Electrical Connector | 3-56 Coaxial Jack | |
| Electrical Connection Position | Side | |
| Mounting | Adhesive | |