681S02 Single Axis Tigh Temperature Accelerometer

681S02 1-Axis Accelerometer Sensor (High-Temperature Charge Output)

The 681S02 series is an industrial-grade, single-axis piezoelectric charge output accelerometer sensor engineered to execute precise vibration and shock measurements across extreme mechanical and thermal environments. Utilizing a specialized charge crystal design encased in a hermetically sealed housing, this transducer boasts an elite operating temperature envelope spanning from -50°C up to 500°C without the risk of thermal depolarization. Optimized for heavy-duty structural monitoring, the 681S02 delivers a wide ±1000 g dynamic range and an ultra-high resonant frequency $\ge 30\text{ kHz}$, making it the gold standard for turbine testing, aerospace propulsion R&D, and high-temperature powertrain diagnostics.

Product Features

• Maximum Operating Temperature Reaches 500°C with Ultra-Low Sensitivity Temperature Coefficient
• Special High-Temperature Resistant Metal Housing, Special High-Temperature Resistant Piezoelectric Materials with Low Temperature Drift
• Special Dual Coaxial 10-32 Output Connector Style
• Optional High-Temperature Metal Cable Available

• Low – Cost Advantage

  • Affordable Design: The C01BT2 is a low cost acceleration sensor without sacrificing quality. It offers a great price – to – performance ratio.
  • Cost – Saving Installation: The M5 installation type cuts installation time and cost. Its durability reduces maintenance and replacement costs.

 

Parameter	Specification / Value	Note / Condition
Brand & Model	Dabey Technology Model 681S02	High-temperature dynamic vibration series
Core Target Keyword	1-axis accelerometer sensor	Classification: Single-axis dynamic transducer
Sensor Type	Piezoelectric Charge Output	Requires external charge amplifier or inline signal conditioner
Sensitivity	5 pC/g	Rated nominal output; excellent signal-to-noise ratio
Measurement Range	±1000 g	Full-scale dynamic measurement window
Frequency Range (±5%)	10-4k Hz	Reference baseline calibration range
Frequency Range (±10%)	1-6k Hz	Extended linearity frequency envelope
Resonant Frequency	≥ 30 kHz	High natural frequency prevents mounting resonance errors
Shock Limit	2000 g pk	Maximum survivable transient shock threshold
Maximum Vibration	1500 g pk	Continuous sinusoidal mechanical vibration limit
Operating Temperature	-50°C to 500°C	Unamplified design supports extreme high-heat profiles
Housing Material	Titanium / Stainless Steel	Hermetically sealed, high strength-to-weight ratio alloy
Connector Type	10-32 Threaded Interface	Standard micro-coaxial connection for low-noise instrumentation
Primary Applications	Gas Turbine R&D, Aerospace Engine Testing, Industrial Exhaust Monitoring	Optimized for ultra-high temperature dynamic structural analysis