Bruel & Kjaer 4393 Accelerometer
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Bruel & Kjaer 4393 is a piezoelectric accelerometer with 0.316 pC/ms² charge sensitivity, frequency range 0.2–16.5 kHz, and titanium construction for vibration measurement.
Product details
| Model | 4393 |
| Manufacturer | Bruel & Kjaer |
| Category | Force Measurement |
| Availability | Made to order |
Description
Overview
The Bruel & Kjaer 4393 is a high-sensitivity piezoelectric accelerometer designed for precision vibration measurement and analysis. Constructed from titanium (ASTM Grade 2) with a delta shear design, it offers excellent performance across a wide frequency range with low transverse sensitivity and high temperature stability.
Key Features
- Charge sensitivity: 0.316 pC/ms² (3.1 pC/g ±2%)
- Voltage sensitivity: 0.48 mV/ms² (4.8 mV/g ±2%)
- Frequency range (5%): 0.2 Hz to 12,000 Hz
- Frequency range (10%): 0.1 Hz to 16,500 Hz
- Mounted resonance: 55 kHz
- Transverse resonance: 18 kHz
- Maximum transverse sensitivity: <4%
- Piezoelectric material: PZ23
- Delta shear construction for superior performance
- Titanium ASTM Grade 2 case material
- Temperature range: -74°C to 250°C
- Maximum operational shock: ±250 km/s²
- Continuous sinusoidal acceleration: 50 km/s²
Applications
- Vibration testing and analysis
- Structural health monitoring
- Engine and machinery diagnostics
- Research and development testing
Included Accessories
- M3 subminiature coaxial connector cable (AO 0038 recommended)
Specifications
| Charge Sensitivity | 0.316 pC/ms² (3.1 pC/g) |
| Voltage Sensitivity | 0.48 mV/ms² (4.8 mV/g) |
| Frequency Range (±5%) | 0.2 Hz to 12,000 Hz |
| Frequency Range (±10%) | 0.1 Hz to 16,500 Hz |
| Mounted Resonance | 55 kHz |
| Transverse Resonance | 18 kHz |
| Maximum Transverse Sensitivity | <4% |
| Capacitance | 650 pF (with integral cable) |
| Operating Temperature Range | -74°C to 250°C |
| Maximum Operational Shock | ±250 km/s² |
| Maximum Continuous Acceleration | 50 km/s² |
| Connector Type | M3 subminiature coaxial |
| Mounting Thread | M3 |
| Case Material | Titanium ASTM Grade 2 |
| Weight | 2.4 grams |
| Body Diameter | 7.3 mm |
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Bruel & Kjaer 4393 Accelerometer
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