The 685A03 series represents a premium class of high sensitivity accelerometers specifically engineered to capture low-level dynamic vibrations and structural transients within high-temperature, severe-service environments. Utilizing an unamplified piezoelectric charge output architecture encased inside a rugged, hermetically sealed shell, this single-axis transducer maintains structural integrity across a sweeping $-50^\\circ\\text{C}$<\/span> to $+500^\\circ\\text{C}$<\/span> thermal profile without risking crystal depolarization. Optimized for precision engineering applications, the 685A03 pairs an elevated 50 pC\/g signal response with an integrated \u03a63.2 high-temperature connection piece, delivering elite measurement reliability for gas turbine R&D, aerospace propulsion systems, and nuclear power plant diagnostics.<\/p>\n <\/p>\n Elevated 50 pC\/g Signal-to-Noise Resolution:<\/b> Designed as high sensitivity accelerometers, these sensors provide powerful charge generation to capture micro-vibrations across low-amplitude testing spectrums, ensuring clean data acquisition prior to external amplification.<\/p>\n<\/li>\n Continuous Sub-Zero to 500\u00b0C Thermal Stability:<\/b> Constructed with premium, ultra-stable piezoelectric crystals and zero internal electronics, preventing thermal drift or performance degradation during prolonged high-heat engine and exhaust operations.<\/p>\n<\/li>\n Integrated \u03a63.2 High-Temperature Connection:<\/b> Features a specialized \u03a63.2 high-temperature integral piece connection, engineered to minimize cable mass loading, eliminate triboelectric noise, and guarantee secure electrical transmission under rigorous cyclical heating.<\/p>\n<\/li>\n Titanium \/ Stainless Steel Structural Armor:<\/b> Housed within an ultra-tough, hermetically sealed metal casing capable of sustaining continuous linear vibration limits up to 500 g pk and sudden mechanical shocks up to 1000 g pk.<\/p>\n<\/li>\n<\/ul>\n <\/p>\nKey Features<\/h3>\n
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\n Parameter<\/td>\n Specification \/ Value<\/td>\n Note \/ Condition<\/td>\n<\/tr>\n \n Brand & Model<\/td>\n Dabey Technology Model 685A03<\/td>\n High-temperature dynamic vibration series<\/td>\n<\/tr>\n \n Core Target Keyword<\/td>\n High Sensitivity Accelerometers<\/td>\n Classification: Single-axis dynamic transducer<\/td>\n<\/tr>\n \n Sensor Type<\/td>\n Piezoelectric Charge Output<\/td>\n Requires external charge amplifier or inline signal conditioner<\/td>\n<\/tr>\n \n Sensitivity<\/td>\n 50 pC\/g<\/td>\n Rated nominal output; excellent signal-to-noise ratio<\/td>\n<\/tr>\n \n Measurement Range<\/td>\n \u00b1300 g<\/td>\n Full-scale dynamic measurement window<\/td>\n<\/tr>\n \n Frequency Range (\u00b15%)<\/td>\n 10-2.5k Hz<\/td>\n Reference baseline calibration range<\/td>\n<\/tr>\n \n Frequency Range (\u00b110%)<\/td>\n 1-4.5k Hz<\/td>\n Extended linearity frequency envelope<\/td>\n<\/tr>\n \n Resonant Frequency<\/td>\n \u2265 16 kHz<\/td>\n High natural frequency prevents mounting resonance errors<\/td>\n<\/tr>\n \n Shock Limit<\/td>\n 1000 g pk<\/td>\n Maximum survivable transient shock threshold<\/td>\n<\/tr>\n \n Maximum Vibration<\/td>\n 500 g pk<\/td>\n Continuous sinusoidal mechanical vibration limit<\/td>\n<\/tr>\n \n Operating Temperature<\/td>\n -50\u00b0C to 500\u00b0C<\/td>\n Unamplified design supports extreme high-heat profiles<\/td>\n<\/tr>\n \n Housing Material<\/td>\n Titanium \/ Stainless Steel<\/td>\n Hermetically sealed, high strength-to-weight ratio alloy<\/td>\n<\/tr>\n \n Connector Type<\/td>\n \u03a63.2 High-temperature integral piece<\/td>\n Standard micro-coaxial connection for low-noise instrumentation<\/td>\n<\/tr>\n \n Primary Applications<\/td>\n Gas Turbine R&D, Aerospace Engine Testing, Industrial Exhaust Monitoring<\/td>\n Optimized for ultra-high temperature dynamic structural analysis<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n","protected":false},"excerpt":{"rendered":" \n