By Winncy Y. Du
Sensor applied sciences have skilled dramatic development lately, creating a major effect on nationwide defense, health and wellbeing care, environmental development, power administration, nutrients security, development tracking, production and method keep watch over, and extra. although, schooling on sensor applied sciences has now not saved velocity with this speedy improvement … until eventually now.
Resistive, Capacitive, Inductive, and Magnetic Sensor Technologies
examines current, new, and novel sensor applied sciences and―through real-world examples, pattern difficulties, and functional exercises―illustrates how the comparable technology and engineering ideas might be utilized throughout a number of disciplines, delivering larger perception into quite a few sensors’ working mechanisms and sensible capabilities. The publication assists readers in realizing resistive, capacitive, inductive, and magnetic (RCIM) sensors, in addition to sensors with comparable layout innovations, features, and circuitry.
Resistive, Capacitive, Inductive, and Magnetic Sensor Technologies
is a whole and accomplished evaluate of RCIM sensing applied sciences. It takes a different method in describing a wide diversity of sensing applied sciences and their assorted functions by means of first reviewing the mandatory physics, after which explaining the sensors’ intrinsic mechanisms, targeted designs, fabrics and production equipment, linked noise varieties, sign conditioning circuitry, and sensible functions. The textual content not just covers silicon and metal sensors but in addition these made up of smooth and really expert fabrics equivalent to ceramics, polymers, and natural elements. It offers state of the art details valuable to scholars, researchers, scientists, and practising execs desirous about the layout and alertness of sensor-based items in fields resembling biomedical engineering, mechatronics, robotics, aerospace, and beyond.
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Extra info for Resistive, Capacitive, Inductive, and Magnetic Sensor Technologies
Sample text
10 Step response of a renal vascular resistance (RVR) to a renal artery pressure after sudden release. (From Just, A. , J. Physiol. 538, 167, 2002. 335 The inverse of response time is the cutoff frequency, fc, indicating the lowest or highest frequency of input signal that a sensor can take and respond properly. 707) of its steady-state value. The bandwidth of a sensor is the frequency range of the input signal that the sensor can process—usually 0 ~ fc, or the range between the two cutoff frequencies (fc1 ~ fc2).
Van Dusen therefore introduced a term of the fourth order, β (only applicable for T < 0°C). 2 Thermoresistive Effect for Semiconductors In semiconductor materials, the valence electrons are bonded in covalent bonds with their neighbors. As temperature increases, thermal vibration of the atoms breaks up some of these bonds and releases electrons. These “free” electrons are able to move through the material under applied electric fields and the material appears to have a smaller resistance. Thus, electrical resistance R of semiconductor materials decreases as temperature T increases.
Hysteresis errors are typically caused by the following factors except A. Temperature and humidity variation B. Features of the measured parameter C. Sensor structure D. Sensor material properties 7. A sensor’s accuracy can be expressed using all of the following terms except A. Measured parameter B. Output parameter C. Ratio of maximum measurement error versus measured value D. In sensor design, the objective is to A. Minimize the S/N ratio B. Minimize the noise factor Fn C. Make the S/N ratio close to 1 D.