34103A Precision Aligned ±1 g to ±7.5 g Tri-Axial Accelerometers with Signal Conditioning Technical Data* Features and Benefits Precision Alignment Each Axis of the 34103A is precision aligned to minimize errors due to axis misalignment or transverse sensitivity. High Accuracy and Linearity over Wide Temperature Range The voltage output for each axis of the 34103A is directly proportional to the acceleration along that axis. Each DC-coupled output is fully scaled, referenced, and temperature compensated. A force-balanced design improves accuracy by minimizing variations due to temperature and aging effects, resulting in a sensor that is more stable over temperature than piezoelectric or piezoresistive devices. Calibration Certificate Each 34103A can be supplied with an optional calibration certificate listing gain, offset, and on-axis and transverse alignment parameters needed to ensure rapid and efficient system implementation. The alignment data can be used to compensate the measured values to achieve an even higher level of sensor accuracy. Self-Test on Digital Command A TTL-compatible self-test input causes a simulated acceleration to be injected into all three sensors to verify channel integrity. Small Size Complete conditioned tri-axial accelerometer in less than a cubic inch. Single +5 Volt Supply A regulated +5 volt power supply is all that is required to measure accelerations on all three axes. Suitable for Harsh Environments The 34103A is robust and can be used in harsh environments. The unit will survive 500 g powered and 1000 g unpowered. *Data subject to change without notice Precisely Measure Real-World Accelerations The Summit Instruments 34103A accelerometer has each mutually orthogonal axis precisely aligned within 1/2 degree of the theoretical ideal. This provides the accuracy required by most linear and angular measurement applications without any compensation. Critical applications requiring higher accuracy can use the alignment data provided on the optional calibration certificate to compensate for any small residual error. A +5 volt regulated power supply is all that is required to measure ±1 g, ±1.5 g, ±2 g, ±2.5 g, ±3 g, ±5 g, or ±7.5 g accelerations on each of three axes. Each axial sensor has been tested over the -40 to +85°C temperature range. Each axis has a nominal full scale output swing of ±2 volts. The zero g output level is nominally +2.5 volts. Precise values for each axis are available on an optional calibration certificate. Custom versions of the 34103A can be provided for applications which require different ranges and/or bandwidths. Rev. 03/98 Specifications TA = TMIN to TMAX, VS = +5 V ±5%, Acceleration = 0 g, unless otherwise noted. Parameter Range Measurement Full Scale Shock survival, powered Shock survival, unpowered Sensitivity At 25° C, ±5 g FSR Drift TMIN to TMAX Zero G Bias Level At 25° C Drift TMIN to TMAX Alignment Deviation from ideal axes Transverse Sensitivity Nonlinearity Upper Cutoff Frequency Noise Density Amplitude DC to 100 Hz Self Test Input Logic "1" Voltage Logic "0" Voltage Power Supply (VS) Input voltage Input current Rejection Ratio Outputs Output voltage swing Capacitive Drive Capability Temperature Range (TA) Mass † Min Typical ±1 -500 -1000 365† 420† ±0.5 2.1 Max Units Conditions/Notes ±7.5 +500 +1000 g g g On each axis. Must specify via Opt. Rnnn Any axis for 0.5 ms. Recovers on power cycle. Any axis for 0.5 ms. 475† mV/g % 2.9 V g ±0.50 degrees % % FSR Hz ±0.2 ±0.15 0.25 0.2 6.9 2500 0.5 5 mg/√Hz mg rms 1 Precise values on Opt. C001 cal certificate. Percent of sensitivity at 25° C Precise values on Opt. C001 cal certificate. Repeatable, can be compensated. Precise values on Opt. C001 cal certificate. Can be compensated if required. Inherent sensor error, excluding misalignment. Best fit straight line. ±10% Must specify via Opt. Bnnn. 4 Hz to 1 kHz Input impedance 50 kΩ to ground. +2.0 V V +0.8 +4.75 30 +5.25 32 V mA dB VS - 0.25 V pF +85 °C g 25 40 0.25 1000 -40 30 Power-up stabilization in 1 ms. Power cycling can be used to reduce power consumption. No load, quiescent. DC IOUT = ±0.1 mA Opt. M001 reduces typical mass to 20g Scale linearly with range option Rnnn. Mechanical Ordering Information 34103AK0 34103A kit with 34160A cable, 34170A adapter & tools 34103AK1 34103A kit with 34161A cable, 34170A adapter & tools 34103A Tri-axial accelerometer ±1 to ±7.5 g (-Bnnn & -Rnnn options required) -Bnnn Bandwidth 3 dB cutoff (nnn Hz) -C001 Add calibration certificate -M001 Reduced Mass (requires bandwidth < 100 Hz) -Rnnn Range (nnn g FSR) -W024 Extend warranty from 1 year to 2 years Two 3 mm × 0.5 mm threaded holes are provided on each of three orthogonal faces for mounting. Summit Instruments, Inc. 2236 N. Cleveland-Massillon Rd. Akron, Ohio 44333-1255 34160A Shielded twisted-pair cable, 3 meter length, 9-pin female D-subminiature connector at end for user connection. 34161A Shielded twisted-pair cable, 0.3 meter length, tinned, stripped leads for user connection. 34170A Mounting adapter. Alternate mounting flange with two 3 mm tapped holes & two 0.142 [3,60] thru holes, plate dimensions: 1.417 [36,0] × 0.945 [24,0] × 0.276 [7,0]. 34180A Voltage regulator, 7.5-35V input regulated to 5V output. Voice: (330) 659-3312 Fax: (330) 659-3286 www.summitinstruments.com