Results 221 to 230 of about 1,999 (257)
Inductive Proximity Sensor with Novel Structure of Ferrite Core
Materials Science Forum, 2010 Inductive proximity sensors (proximity sensors) are noncontact sensing devices used to detect the approach of a target by an increase in coil impedance due to eddy current loss. Extending the operating distance of these sensors is demanded. The flux of a conventional proximity sensor has difficulty in reaching the target because of the presence of the ...
Tsutomu Mizuno +6 more
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Scaling down an inductive proximity sensor
Sensors and Actuators A: Physical, 1996Abstract We analyse the problem of scaling down an inductive proximity sensor made of superposed multiple-turn flat coils. We scale down linearly all the geometrical dimensions. Then the nominal inductance is scaled down proportionally to the scale factor. The coupling factor of the superposed coils remains constant.
Philippe Passeraub
exaly +2 more sources
An integrated inductive proximity sensor
, 1999 Inductive proximity sensors are widely used for the contactless measurement of object or target displacement and position in numerous technical products and systems. They are found in various application domains such as transportation, robots, assembly lines, telecommunication or security.
Passeraub, Philippe Alfons
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Sensor Design for Inductive Proximity and Moving Direction Sensing of Metal Targets
2021 10th International Conference on Modern Circuits and Systems Technologies (MOCAST), 2021 We present the design of a new inductive proximity sensor to detect metal targets and their direction of movement. The proposed sensor design includes a base board with the necessary microcontroller based circuitry for driving and reading the sensing LC tanks and several different solutions for the printed sensor coil. Different coil configurations are
Ababei, Cristinel, Richie, James E.
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A Combined Inductive–Capacitive Proximity Sensor for Seat Occupancy Detection
IEEE Transactions on Instrumentation and Measurement, 2010This paper presents a simple and efficient seat occupancy detector. A seat occupancy detector is an integral part of the airbag safety system and, in its simplest form, provides the (occupied or vacant) status of the seat to the airbag control unit. Although the occupancy sensing methods based on a capacitive principle are efficient, they typically ...
Boby George +2 more
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Inductive proximity sensor with a flat coil and a new differential relaxation oscillator
Sensors and Actuators A: Physical, 1997Abstract A high-sensitivity flat-coil inductive proximity sensor microsystem has been realized and successfully tested. The flat coil, made with CMOS-compatible post processes, is connected to a versatile differential relaxation oscillator electronic interface.
Philippe Passeraub
exaly +2 more sources
Metallic profile and coin imaging using an inductive proximity sensor microsystem
Sensors and Actuators A: Physical, 1998Abstract We have realized metallic profile and coin imaging using a miniaturized inductive proximity sensor. The sensor is a microsystem composed of a 1 mm diameter coil and a new ASIC interface based on the principle of a differential relaxation oscillator. We successfully acquired wellrecognizable images of various coins with different geometrical,
Philippe Passeraub
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The design of a proximity inductive sensor
Measurement Science and Technology, 1998In this paper we discuss the advantages of flat coil inductive proximity sensors. The coil copper helix may be realized by application of a photoengraving technique to two side-printed boards by a very cheap process. The low thickness allows one to get the coil closer to the target. This fact allows one to attain a higher sensitivity.
C Bartoletti +5 more
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A signal conditioner IC for inductive proximity sensors
2011 9th IEEE International Conference on ASIC, 2011In this paper, a monolithic signal conditioner for inductive proximity sensors (IPSs) is presented. It's based on the principle that change in inductance current slew rate at a constant voltage is related to inductance. Through detection of current slew rate slope di/dt, inductance can be detected.
Wengang Huang +4 more
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On improving the range of inductive proximity sensors for avionic applications
Sixteenth International Symposium on Quality Electronic Design, 2015This paper describes the design of a highly accurate proximity sensing system that is capable of operating in a wide distance range. The system is based on passive inductive proximity sensors that can withstand harsh environments, and, therefore, are widely used in avionic applications. Our design methodology consists of determining the ideal trade-off
Paul Leons +5 more
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