scispace - formally typeset
Search or ask a question

How advance the sensitivity of an inductive sensor? 


Best insight from top research papers

To advance the sensitivity of an inductive sensor, several methods have been proposed in the literature. One approach is to optimize the gap between the upper and lower magnetic films, which can enhance the sensitivity and resolution of planar magnetic inductive sensors . Another method involves using a contact induction displacement sensor in a bridge measuring circuit, which increases the sensitivity to movement . Additionally, the sensitivity of axial inductive displacement sensors can be improved by reducing the balance air gap, increasing the excitation frequency, and consuming more apparent power . Furthermore, the sensitivity of multiplexed inductive sensors can be enhanced by using multiple mini-sized planar spiral coils and applying resonance frequency division multiplexing techniques . Finally, the detection sensitivity of micro inductive sensors can be improved by surrounding the sensor with magnetic powder, which enhances the magnetic field and increases the inductive signal .

Answers from top 4 papers

More filters
Papers (4)Insight
The paper proposes a method to improve the sensitivity of an inductive sensor by surrounding it with magnetic powder, which enhances the magnetic field and increases the detection signal.
The paper provides methods to improve the sensitivity of axial inductive displacement sensors by reducing the balance air gap size and increasing the excitation frequency and power consumed by excitation coils.
The sensitivity of an inductive sensor can be improved by optimizing the gap between the upper and lower magnetic films, as discussed in the provided paper.
The paper discusses various methods to increase the sensitivity of an inductive sensor, such as using a differential circuit, resonant mode of operation, and a phase-locked loop frequency adjustment system.

Related Questions

How to measure inductance?5 answersInductance can be measured using various methods. One approach involves utilizing a lumped electrical model with resistance and inductances to represent different motor parameters, such as phase winding resistance and inductance. Another method employs an inductance measurement device with components like a reference inductance unit, capacitors, and an inductance meter to electrically measure inductors between testing nodes. Additionally, inductance standards can be calibrated by evaluating errors at a specific reactance value of a capacitance standard, allowing inductance determination in terms of capacitance standards. Furthermore, an inductance measurement device based on SERDES technology utilizes a reference clock source and operational amplifiers to measure inductance values accurately. Overall, these methods offer diverse techniques for measuring inductance accurately and efficiently.
How does the rate of analyte diffusion affect the sensitivity of an electrochemical sensor?5 answersThe rate of analyte diffusion significantly impacts the sensitivity of an electrochemical sensor. Analyte flow rate and orientation towards the flow direction influence sensor performance and current fluctuations, showcasing the importance of diffusion in sensor behavior. In biological samples, the binding of analytes to receptors on the working electrode allows for current flow measurement, demonstrating the direct impact of diffusion on sensor response. Additionally, in studying biological processes, understanding cellular transport and diffusion near the sensing electrode is crucial. Deconvolution of diffusion's impulse response function from concentration data is necessary to accurately interpret cellular flux, highlighting the intricate relationship between diffusion rate and sensor sensitivity.
How does angling the multimeter increase sensitivity?3 answersAngling the multimeter can increase sensitivity by reducing the taper diameter and finding the optimum taper curvature. The sensitivity of tapered fiber-optic sensors increases as the taper diameter decreases. Additionally, there is an optimum taper curvature for exponential-linear profiles that results in the highest sensitivity. This increase in sensitivity can be justified by considering the coupled power to different modes of the tapered fiber and the ratio of power outside the fiber taper to the total power for different modes. Therefore, by angling the multimeter and optimizing the taper geometry, the sensitivity of the sensor can be significantly improved.
What are the factors that affect the response time of an electrochemical sensor?5 answersThe factors that affect the response time of an electrochemical sensor include reversible adsorption of analyte molecules to the surfaces of the sensor, device geometry, and electrode biasing scheme. Other parameters that can influence the response time are sensitivity, selectivity, recovery time, lifetime of the sensor, limit of detection, repeatability, detection accuracy, and figure of merit. Fluctuations in the meniscus contact shape or area at the gas-electrolyte-electrode interface due to ambient pressure fluctuations can also impact the response time. The polarization state of the three-phase boundary at the sensor's electrodes can be adjusted to control the response value, sensitivity, and working temperature, leading to improved response time and power consumption. The electrode morphology and layout can also have a significant impact on the response time of solid electrolyte sensors.
What is inductive sensor?4 answersAn inductive sensor is a device that uses electromagnetic induction to detect or measure the presence or proximity of an object. It typically consists of a resonance circuit with a sensing coil and an amplifier to maintain oscillation. The sensor can sense at different frequencies by using different loop parts and tuning capacitors. It can also be used for unlocking a vehicle opening panel by detecting variations in the electromagnetic field caused by pressure applied to a metal pressure member. The sensor can generate sensor signals by evaluating oscillations of a resonant circuit and store oscillation energy in an energy storage device. Additionally, an inductive sensor device may include a reference sensor head with a fixed reference target and a variable reference element to adjust the characteristics of an operational sensor head.
How sensitive are photoelectric smoke detectors?8 answers