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7264H

7264H
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Aerospace Energy Measurement Damped piezoresistive accelerometer Model 7264H Key features • DC response - long duration transients • Mechanical overtravel stops • Selectable damping range • Small size, rugged • Crash and shock testing STANDARD TOLERANCE INCHES [MILLIMETERS] .XX = ±.03 [.X = ±.8] .XXX = ±.010 [.XX = ±.25] Model 7264H is a very low mass accelerometer weighing only 1.4 grams. This accelerometer is designed for crash testing and similar applications that require minimal mass loading, broad frequency response, and minimum zero shift following the event. It is equivalent in form and fit to the Endevco model 7264C-2K in that the location of the center of seismic mass is the same. Model 7264H utilizes a unique and advanced micro-machined piezoresistive sensor, which includes integral mechanical stops and damping. This monolithic sensor incorporates the latest MEMS technology for ruggedness, stability and reliability over previous designs. The accelerometer has a two active arm, full bridge circuit with fixed completion resistors to facilitate shunt calibration. Full-scale output is 400 mV nominal with 10 Vdc excitation. With a frequency response extending down to dc (steady state acceleration), this accelerometer is ideal for measuring long duration transient shocks. 7264H has a full scale range of 1000 g and a selectable damping range. It is available with less than 1% transverse sensitivity and less than ± 25 mV Zero Measurand Output as the “TZ” option. US patent 6,988,412 applies. Recommended electronics for signal conditioning and power supply are the Endevco brand model 126 and 136 and model 436, a general purpose three channel DC conditioner and power supply. Meggitt Sensing Systems Our measurement product competencies: Piezoelectric accelerometers | Piezoresistive accelerometers | Isotron accelerometers | Variable capacitance accelerometers | Pressure transducers | Acoustic sensors | Electronic instruments | Calibration systems | Shakers | Modal hammers |

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Damped piezoresistive accelerometer AH specifications are referenced at +75°F 1+24°C] and 10 Vdc, unless otherwise noted. Sensitivity and zero measuresnd offset are provided at 2V, 5V and 10V excitation. Calibration data traceable to National Institute of Standards and Technology INIST1, is supplied Dynamic characteristics Units Minimum/Nominal/Maximum mV/V/g Frequency response (Referenced to 100 Hz] Natural frequency (minimum) kHz Zero measurand output mV Damping ratio (over operating temp] Thermal zero shift (normal] Thermal sensitivity shift (max] Mounting strain sensitivity (per ISA...

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Damped piezoresistive accelerometer Meggitt Sensing Systems 1. Maintain high levels of precision and accuracy using Meggitt's factory calibration services. Call Meggitt's inside sales force at 800-982-6732 for recommended intervals, pricing and turn-around time for these services as well as for quotations on our standard products. 2. Model number defintion: EHM35 Allen wrench Included EHW196 Size-0 flat washers (x2) Included EH828 0-8 x3/16 inch socket head cap screw (x2) Included 7953A Triaxial mounting block Optional Cable length in inches (240, 300 and 360 inch standard stock lengths]...

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