When it comes to sensors and transducers, accuracy and resolution are two terms that are often a source of confusion so here is a helpful article to clear everything up. So here it is: accuracy vs. resolution…game on! We will use a set of digital kitchen scales as the reference for our explanations: They have a rated capacity of 10kg (10,000 grams) They have a digital display that reads from 0.000kg to 10.000kg in steps of 0.001kg Their accuracy is better than ±0.1% of their rated capacity Resolution Resolution is the number of pieces or parts that the output or displayed reading from a sensor or measuring instrument can be broken down into without any instability in the signal or […]
Month: April 2010
High Accuracy Displacement Sensors Use Strain Gauge Technology
As a result of increased demand from customers preferring to use a strain gauge based measuring system, we have introduced a 0–100mm version to our range of AML/SGD high accuracy displacement transducers. Based on a four-arm Wheatstone-Bridge design with a nominal impedance of 350 Ohms, the design ensures excellent non-linearity, low power consumption and excellent temperature stability. Additionally, the characteristics of strain gauge based sensors provide higher accuracy linear sensing than that of less accurate and lower resolution LVDT sensors. These advantages of our AML/SGD high accuracy displacement sensors have been realised by Oxfordshire based company Fugro GeoConsulting Limited, who use the existing 0-50mm version of the sensors within their accredited geotechnical soil-testing laboratory. This high-tech establishment tests soil samples […]