A low-cost, smart capacitive position sensor
نویسندگان
چکیده
منابع مشابه
A Novel Smart Resistive - Capacitive Position Sensor
A novel smart resistive-capacitive angular position sensor is presented. The main advantages of this low-cost system are its simplicity, high stability and high reliability. A very hear oscillator is used in the processing circuit to convert the position quantity to a period-modulated signal which can directly be read out by a microcontroller. The system does not need an A/D converter. The nonl...
متن کاملVersaPatch: A Low Cost 2.5D Capacitive Touch Sensor
Capacitive input devices are becoming increasingly prevalent in consumer devices. This paper presents the hardware and algorithms for the low cost implementation of a capacitive 2.5D input device. The low cost and low power consumption of the device make it suitable for use in portable devices such as cellular phones. The electrical properties used are such that the preexisting snap dome techno...
متن کاملAnalysis of Micromachined Capacitive Incremental Position Sensor
This article presents an analysis for two related concepts of a capacitive incremental position sensor. In Incremental Capacitance Measurement Mode the periodic change in capacitance is measured to determine the relative displacement between two periodic geometries S1 and S2 with gap-distance of ~ 1 μm. In Constant Capacitance Measurement Mode the distance between S1 and S2 is controlled to k...
متن کاملA Novel Single-Excitation Capacitive Angular Position Sensor Design
This paper presents a high-precision capacitive angular position sensor (CAPS). The CAPS is designed to be excited by a single voltage to eliminate the matching errors of multi-excitations, and it is mainly composed of excitation electrodes, coupling electrodes, petal-form sensitive electrodes and a set of collection electrodes. A sinusoidal voltage is applied on the excitation electrodes, then...
متن کاملLow-Cost Ultrasonic Fusion Sensor For Angular Position
This paper describes a low-cost ultrasonic fusion system for angular position. It makes use of two omnidirectional microphones together with one ultrasonic transmitter. The system enables the determination of the transmitter with respect to the two omni-directional microphones. The technique used for the estimation of the incident angle è is the sum-and-difference monopulse method.
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: IEEE Transactions on Instrumentation and Measurement
سال: 1992
ISSN: 0018-9456
DOI: 10.1109/19.199446