Accelerometer without display 3801A series

1-axisMEMSpiezoresistive

The Model 3801A is a mV output piezoresistive MEMS accelerometer in a rugged welded hermetic package. The 3801A accelerometer incorporates mechanical stops for over-range protection up to greater than 10,000g. The model 3801A is offered in ranges from ±2 to ±2000g and is gas damped to provide a wide frequency response. The accelerometer is temperature compensated to provide a stable output over the operating environment. BENEFITS ±2g to ±2000g Dynamic Range 10,000g Shock Protection Hermetically Sealed Gas Damping mV Output DC Response Stud Mounting FAQ Frequently Asked Questions What is an accelerometer? Accelerometers measure the acceleration or vibration of a device or system. Physically, the accelerometer can be considered as nothing more than a weight on a spring which is connected to a frame. When the frame is moved, the mass will stay at rest until the spring, being stretched, can exert enough energy on the mass to make it move. What is difference between piezo-electric (PE), piezo-resistive (PR) and variable capacitance (VC) accelerometers? The word “piezo” comes from the Greek word “piezein” which means to press or squeeze. In this case, this refers to a basic characteristic of the material; when pressed or subjected to force, piezoelectric (PE) materials develop an electric charge and piezoresistive (PR) materials exhibit a change in resistance. Variable Capacitance (VC) sensors are essentially accelerometers that derive the acceleration measurement from a change in capacitance of a seismic mass moving between two parallel capacitor plates. These are the principles of operation of most accelerometers in use today.