|
|
|||
|
|
|||
|
From globalspec.com
Piezoelectric accelerometers consist essentially of three basic elements: the transducer body, the piezoelectric sensing element and the seismic mass (see Figure 1). The original Kistler piezoelectric accelerometers incorporated a compression design whereby the compression cut, quartz crystal sensing element is preloaded between the base plate and seismic mass. Because of the constant seismic mass, the force acting on the measuring element is proportional to the acceleration in accordance with Newton's first law: F=ma. An electrical charge is generated proportional to the force (and hence the acceleration). Because they are basically AC coupled devices, piezoelectric accelerometers are not suitable for measuring constant (DC) accelerations like those generated in a centrifuge. Products & Services
Piezoelectric ceramics produce an electrical charge when a load is applied and deformation occurs. Piezoelectric ceramics can also produce force or deformation when an electrical charge is applied.
Piezoelectric sensors measure the electrical potential caused by applying mechanical force to a piezoelectric material. They are used in a variety of pressure-sensing applications.
Accelerometers are instruments for measuring, displaying, and analyzing acceleration and vibration.
Piezoelectric devices generate electrical signals in response to vibrations and produce mechanical energy in response to electrical signals. Device types include actuators, motors, sensors, and transducers.
Inertial and gyro systems use a combination of accelerometers and angular rate sensors (gyroscopes) to detect altitude, location, and motion. They may also be capable of detecting attitude, position, velocity, temperature, or magnetic field.
Product Announcements
Topics of Interest
The dynamic range of an accelerometer is the range between the smallest acceleration detectable by the accelerometer to the largest. A piezo-electric accelerometer produces a charge proportional the...
(Read More)
Piezoelectric sensors (Transducers) measure dynamic phenomena such as force, pressure and acceleration (including shock and vibration). Inside the sensor, piezoelectric materials such as quartz and...
(Read More)
Accelerometers are sensors and instruments for measuring, displaying and analyzing acceleration and vibration. They can be used on a stand-alone basis, or in conjunction with a data acquisition...
(Read More)
Piezo sensors are used to reliably measure pressure, acceleration, tension or force. They are based on the piezoelectric effect which is due to the ability of crystals to generate an electric charge...
(Read More)
Piezoelectric sensors are used extensively for monitoring structural and machinery vibrations. Piezoceramic PZT and quartz are the most widely used sensing materials for accelerometers and...
(Read More)
|
|
