688A07 High Precision Accelerometer

688A07 High Precision Accelerometer (High-G IEPE Type)

The 688A07 series is a premium-grade high precision accelerometer engineered to execute simultaneous multi-directional vibration profiling and high-amplitude shock measurements within demanding testing environments. Equipped with integrated internal IEPE signal conditioning circuitry, this low-impedance transducer converts raw internal charge into a highly stable voltage output, allowing for distortion-free data transmission over extended cable networks. Purpose-built for advanced engineering diagnostics, the 688A07 pairs a formidable $\pm2500\text{ g}$ dynamic measurement range with an ultra-rigid internal configuration that yields a resonant frequency $\ge 70\text{ kHz}$, delivering definitive data accuracy for aerospace modal analysis, automotive impact diagnostics, and military rocketry research.

 

Key Techincal Data

1. Measuring Range: ±2500 g. Suitable for a wide range of acceleration levels.
2. Mounting Resonant Frequency ≥70 kHz for stable operation.
3. Sensitivity Temperature Coefficient: -0.070 %/℃.
4. Operating Temperature: – 50~120℃.
5. Sealing Type: Laser welding IP68.
6. Protects the sensor in harsh environments.
7. Supply constant voltage: 20 – 30 VDC.
8. Supply constant current: 2 – 20 mA.
9. Output impedance ≤100 Ω. Ensure proper sensor operation.

 

Parameter	Specification / Value	Note / Condition
Brand & Model	Dabey Technology Model  688A07	High-precision multi-axis dynamic series
Sensor Type	IEPE	Internal low-impedance voltage amplification circuit
Sensitivity	2  pC/g	Standard stabilized output voltage per g unit
Measurement Range	±2500 g	Full-scale high-g dynamic measurement window
Frequency Range (±5%)		Inquire for narrow-band flat frequency responses
Frequency Range (±10%)	5-10k Hz	High-frequency extended linear operation zone
Resonant Frequency	≥ 70 kHz	Ultra-high stiffness limits mounting resonance errors
Shock Limit	8000 g pk	Maximum survivable transient shock threshold
Maximum Vibration	4000 g pk	Continuous sinusoidal mechanical vibration limit
Operating Temperature	-50°C to 120°C	Temperature range governed by internal IEPE chips
Housing Material	Titanium / Stainless Steel	Welded hermetic sealing with low-mass structural rigidity
Connector Type	1/4-28 four-core	Industrial multi-pin micro-coaxial independent thread layout
Primary Applications	Rocketry & Missile Separation, Automotive Impact Testing, Aerospace Modal Analysis	Optimized for extreme high-g dynamic structural diagnostics