Variable Capacitance and Piezoresistive Accelerometers- Differences in Application
Basic application parameters often drive which type of device to select. Using Endevco as an example again, the 
are limited to 150g or less (one measures ±2g, full scale). But it is also important to keep in mind that Endevco Microtron® devices have 20,000g survivability. This extreme overrange capability is the result of the unique design of the Endevco Microtron accelerometer. VC devices, with their high sensitivity, are well suited for testing automotive suspension systems, measuring
aircraft flutter, safety testing of amusement park rides, and control of specialized railroad passenger cars. PR devices are excellent shock
accelerometers
, with the capability of accurately measuring shock events greater than 60,000g. As a result of a micromachined manufacturing process, they rarely exhibit zero shift, often found with piezoelectric accelerometers. Their low sensitivity makes them desirable for high level shock events since they will provide accurate results without overdriving the associated data acquisition equipment. Since PR devices are often DC coupled, they are capable of capturing long duration shock events. They are the first choice for many transportation safety tests including automotive crash tests, airline seat safety testing, and testing of head protection devices
are limited to 150g or less (one measures ±2g, full scale). But it is also important to keep in mind that Endevco Microtron® devices have 20,000g survivability. This extreme overrange capability is the result of the unique design of the Endevco Microtron accelerometer. VC devices, with their high sensitivity, are well suited for testing automotive suspension systems, measuring
aircraft flutter, safety testing of amusement park rides, and control of specialized railroad passenger cars. PR devices are excellent shock
accelerometers
, with the capability of accurately measuring shock events greater than 60,000g. As a result of a micromachined manufacturing process, they rarely exhibit zero shift, often found with piezoelectric accelerometers. Their low sensitivity makes them desirable for high level shock events since they will provide accurate results without overdriving the associated data acquisition equipment. Since PR devices are often DC coupled, they are capable of capturing long duration shock events. They are the first choice for many transportation safety tests including automotive crash tests, airline seat safety testing, and testing of head protection devices
Related Articles:
-
We strive to provide our customers with an excellent shopping experience every single time and... Read Full Story » -
TrueMASS is a leading distributor of precision calibration weights and weighing instruments. Our... Read Full Story » -
The weighing scales are amongst the most essential tools that are used for measurement. It is... Read Full Story » -
Advanced microphones, such as those developed by Endevco, are used for the measurement of high... Read Full Story »
Comments
