Precision Inertial Products Notes Index:
Our Technical Notes and FAQs (Frequently Asked Questions) area is designed to help you solve common questions and issues.
Technical Note #401 - Selecting Accelerometer Options
Technical Note #402 - MEMS Accelerometer Theory of Operation
Technical Note #403 - AC Coupling DC-Coupled Accelerometers
Technical Note #404 - Accelerometer Offset Drift Reduction Techniques
Technical Note #407 - Converting Unipolar to Bipolar Signals
Technical Note #408 - Establishing Digital Sensor Communications
Technical Note #409 - IRIG Encoding External Data (Inertial Measurement System)
Technical Note #410 - CRC16 Algorithm
Technical Note #411 - Acquiring Digital Sensor Measurements
Technical Note #412 - High-Speed Digital Sensor Measurements
Technical Note #413 - Compensating for Accelerometer Misalignment
Technical Note #414 - Reading Calibration Information from a Digital Accelerometer
Technical Note #415 - Reading Application Information from a Digital Sensor
Technical Note #416 - Units Conversions for Random Walk
Technical Note #417 - Digital Instrument Application Offset Compensation
Technical Note #418 - Acquiring Digital Sensor Measurements Using Scripts
Technical Note #419 - Processing CRC-8
Technical Note #420 - Setting Self-Test via RS485
Technical Note #421 - Converting Measurement Values to Engineering Units
Can I use an Accelerometer to measure velocity or position?
Similarly, for position measurements, the required accelerometer accuracy can be approximated based on the integration interval and the desired position accuracy by:
Do I need to use differential inputs?
When making single-ended measurements, lead error offsets must be considered. Since the supply current of our accelerometers is fairly constant, lead errors can be corrected by using offset compensation.
Is CE Marking required for Components sold in Europe?
The European Union has issued a "Guideline on the Application of Council Directive 73/23/EEC" clarifying that components should not bear the CE Marking. The CE Marking applies to products sold for end use, not products designed for integration into other products. Some exceptions include components used in building installations such as household switches, lamps, starters and some motors.
Manufacturers can design components that conform to the requirements of the CE Marking, but they may not apply harmonized safety standards to the product. So, even if a component conforms to the safety objectives of the Low Voltage Directive, manufacturers can't apply the CE Marking and, therefore, no presumption of conformity can exist. Some manufacturers may continue to apply the CE Marking for marketing purposes, but you should not assume that a component conforms to safety or EMC harmonized standard just because it bears the CE Marking.