The Experts below are selected from a list of 9390 Experts worldwide ranked by ideXlab platform

Alexandru Salceanu - One of the best experts on this subject based on the ideXlab platform.

  • Tilt Measurement Sensor
    Sensors and Actuators A-physical, 2000
    Co-Authors: Octavian Baltag, D. Costandache, Alexandru Salceanu
    Abstract:

    The paper presents a tilt transducer with ferrofluid, being dedicated to measure little inclination angles in comparison with a horizontal or a vertical plane. The functioning principle, transfer characteristics and utilised electric diagram are submitted.

  • Tilt Measurement Sensor
    Sensors and Actuators A: Physical, 2000
    Co-Authors: Octavian Baltag, D. Costandache, Alexandru Salceanu
    Abstract:

    A tilt transducer with ferrofluid, being dedicated to measure little inclination angles in comparison with a horizontal or a vertical plane is presented. The functioning principle of the inclination transducer with ferrofluid is based on the liquid property of keeping horizontal its separation surface in a close vessel and on magnetic behavior of the ferrofluid. One or more coils recognizes the modifying slope of the liquid surface through the changes of a corresponding electrical parameter as voltage, frequency or inductance.

Octavian Baltag - One of the best experts on this subject based on the ideXlab platform.

  • Tilt Measurement Sensor
    Sensors and Actuators A-physical, 2000
    Co-Authors: Octavian Baltag, D. Costandache, Alexandru Salceanu
    Abstract:

    The paper presents a tilt transducer with ferrofluid, being dedicated to measure little inclination angles in comparison with a horizontal or a vertical plane. The functioning principle, transfer characteristics and utilised electric diagram are submitted.

  • Tilt Measurement Sensor
    Sensors and Actuators A: Physical, 2000
    Co-Authors: Octavian Baltag, D. Costandache, Alexandru Salceanu
    Abstract:

    A tilt transducer with ferrofluid, being dedicated to measure little inclination angles in comparison with a horizontal or a vertical plane is presented. The functioning principle of the inclination transducer with ferrofluid is based on the liquid property of keeping horizontal its separation surface in a close vessel and on magnetic behavior of the ferrofluid. One or more coils recognizes the modifying slope of the liquid surface through the changes of a corresponding electrical parameter as voltage, frequency or inductance.

D. Costandache - One of the best experts on this subject based on the ideXlab platform.

  • Tilt Measurement Sensor
    Sensors and Actuators A-physical, 2000
    Co-Authors: Octavian Baltag, D. Costandache, Alexandru Salceanu
    Abstract:

    The paper presents a tilt transducer with ferrofluid, being dedicated to measure little inclination angles in comparison with a horizontal or a vertical plane. The functioning principle, transfer characteristics and utilised electric diagram are submitted.

  • Tilt Measurement Sensor
    Sensors and Actuators A: Physical, 2000
    Co-Authors: Octavian Baltag, D. Costandache, Alexandru Salceanu
    Abstract:

    A tilt transducer with ferrofluid, being dedicated to measure little inclination angles in comparison with a horizontal or a vertical plane is presented. The functioning principle of the inclination transducer with ferrofluid is based on the liquid property of keeping horizontal its separation surface in a close vessel and on magnetic behavior of the ferrofluid. One or more coils recognizes the modifying slope of the liquid surface through the changes of a corresponding electrical parameter as voltage, frequency or inductance.

Hanliang Bo - One of the best experts on this subject based on the ideXlab platform.

  • Dynamic characteristics of the capacitance control rod position Measurement Sensor system in NHR-200
    Annals of Nuclear Energy, 2020
    Co-Authors: Guang Hu, Liming Dong, Jinhai Wang, Hanliang Bo
    Abstract:

    Abstract In this paper, the dynamic mathematical model of the capacitance control rod position Measurement Sensor (CCRMS) were established. The experimental research, numerical calculation, and model validation were carried out for the case of the velocity dynamic response calculation, scramming dynamic response calculation, scramming time test and scramming performance Measurement test of the CCRMS. The results show that the validity of the proposed model is verified and the CCRMS is basically realized the dynamic process Measurement function with one step display Measurement requirement. Furthermore, the dynamic characteristics of the double-helix structure CCRMS system were obtained based on the proposed model and experimental research. Moreover, the dynamic measuring error of the CCRMS is less than ±1.20 mm, the delay time of the CCRMS is t = 3τ which is less than 0.84 ms, and the dynamic response time of the capacitance measuring instrument is about 8 ms.

  • Research on the capacitance control rod position Measurement Sensor in NHR-200
    Annals of Nuclear Energy, 2020
    Co-Authors: Guang Hu, Liming Dong, Jinhai Wang, Hanliang Bo
    Abstract:

    Abstract The accurate and reliable Measurement of the control rod position concerns the operation and safety of the 200 MW nuclear heating reactor (NHR-200). In this paper, the static mathematical model of the capacitance control rod position Measurement Sensor (CCRMS) were established. The experimental research, finite element method (FEM) simulation, and model validation were carried out for the case of the ungrounded metal medium, grounded metal medium, dielectric medium control rod measured rod and eccentricity. The results show that the validity of the proposed model is verified and the CCRMS is basically realized the one-step display Measurement requirement. Furthermore, the eccentricity inconsistency of the measured rod is solved. In addition, the end effect of the CCRMS can be reduced reasonably but the eccentricity of the measured rod still have some influences to a certain extent. Moreover, the static characteristics of the double-helix structure CCRMS were obtained based on the proposed model.

Behrooz Tousi - One of the best experts on this subject based on the ideXlab platform.

  • On the modeling of a capacitive angular speed Measurement Sensor
    Measurement, 2013
    Co-Authors: Ali Shah-mohammadi-azar, Hadi Azimloo, Ghader Rezazadeh, Rasoul Shabani, Behrooz Tousi
    Abstract:

    Abstract In the present article, a perceptive capacitive Sensor for measuring angular speed of a rotating shaft is proposed. The proposed Sensor is capable of measuring rotating shaft angular speed, and its changes. The proposed model’s sensing part is a suspended clamped–clamped micro-beam, which is parallel with two fixed substrates from the upper and lower sides through the micro-beam’s width surface. An electric circuit is used to give out capacitance change as a result of angular speed change, in output voltage. The micro-beam undergoes non-linear electro-static pressure that is induced due to the applied bias DC voltage. The suggested Sensor has high sensitivity for a large range of working machines rotating parts angular speed Measurement. The governing nonlinear partial differential equation of the transversal motion of the beam is derived and solved by step by step linearization (SSLM) and Galerkin weighted residual methods and the stable region of the Sensor is determined. The effects of the applied bias voltage and geometrical properties of the micro-beam on the sensitivity and the range of the measurable angular speed of the Sensor are discussed.

  • On the modeling of a capacitive angular speed Measurement Sensor
    Measurement: Journal of the International Measurement Confederation, 2013
    Co-Authors: Ali Shah-mohammadi-azar, Roxana Shabani, Hadi Azimloo, Ghader Rezazadeh, Behrooz Tousi
    Abstract:

    In the present article, a perceptive capacitive Sensor for measuring angular speed of a rotating shaft is proposed. The proposed Sensor is capable of measuring rotating shaft angular speed, and its changes. The proposed model's sensing part is a suspended clamped-clamped micro-beam, which is parallel with two fixed substrates from the upper and lower sides through the micro-beam's width surface. An electric circuit is used to give out capacitance change as a result of angular speed change, in output voltage. The micro-beam undergoes non-linear electro-static pressure that is induced due to the applied bias DC voltage. The suggested Sensor has high sensitivity for a large range of working machines rotating parts angular speed Measurement. The governing nonlinear partial differential equation of the transversal motion of the beam is derived and solved by step by step linearization (SSLM) and Galerkin weighted residual methods and the stable region of the Sensor is determined. The effects of the applied bias voltage and geometrical properties of the micro-beam on the sensitivity and the range of the measurable angular speed of the Sensor are discussed. © 2013 Elsevier Ltd. All rights reserved.