scholarly journals MEASUREMENT METHOD FOR SENSITIVITY ANALYSIS OF PROXIMITY SENSOR AND SENSOR ANTENNA INTEGRATION IN A HANDHELD DEVICE

2011 ◽  
Vol 20 ◽  
pp. 255-268 ◽  
Author(s):  
Sami Myllymaki ◽  
Arttu Huttunen ◽  
Heli Jantunen ◽  
Markus Berg ◽  
Erkki T. Salonen
Keyword(s):  
Sensitivity Analysis ◽  
Measurement Method ◽  
Proximity Sensor ◽  
Handheld Device ◽  
Antenna Integration

scholarly journals Dimension-Reduced Analog—Digital Mixed Measurement Method of Inductive Proximity Sensor

Sensors ◽  
2017 ◽  
Vol 17 (7) ◽  
pp. 1533 ◽  
Author(s):  
Yi-Xin Guo ◽  
Zhi-Biao Shao ◽  
Hui-Bin Tao ◽  
Kai-Liang Xu ◽  
Ting Li
Keyword(s):  
Measurement Method ◽  
Proximity Sensor

scholarly journals Sensitivity Analysis of an Advanced Transmission Measurement Method for Thermal Neutrons Absorbers Detection in Irradiated Beryllium

2021 ◽  
Vol 253 ◽  
pp. 04011
Author(s):  
Małgorzata Wróblewska ◽  
David Blanchet ◽  
Abdallah Lyoussi ◽  
Patrick Blaise ◽  
Zuzanna Marcinkowska ◽  
...  
Keyword(s):  
Sensitivity Analysis ◽  
Thermal Neutron ◽  
Neutron Source ◽  
Measurement Method ◽  
Transmission Measurement ◽  
Thermal Neutrons ◽  
Neutron Detectors ◽  
Optimization Analysis ◽  
Fission Chamber ◽  
Neutron Sources

This paper presents an advanced optimization analysis of the newly developed transmission measurement method conducted in the MARIA MTR reactor for thermal neutrons absorbers estimation in irradiated beryllium elements. Several neutron sources in combination with various thermal neutron detectors are investigated, along with the optimization of the moderating polyethylene layer to improve the signal to background ratio. It was concluded that the use of 239PuBe or 241AmB neutron source with polyethylene of 0.95 g/cm3 density and ∼4.5 cm thickness, as well as either 235U lined fission chamber or BF3 detectors are meeting the requirements for the use in the experiment.

scholarly journals An Analog-Digital Mixed Measurement Method of Inductive Proximity Sensor

Sensors ◽  
2015 ◽  
Vol 16 (1) ◽  
pp. 30 ◽  
Author(s):  
Yi-Xin Guo ◽  
Zhi-Biao Shao ◽  
Ting Li
Keyword(s):  
Measurement Method ◽  
Proximity Sensor

scholarly journals Differential Structure of Inductive Proximity Sensor

Sensors ◽  
2019 ◽  
Vol 19 (9) ◽  
pp. 2210 ◽  
Author(s):  
Yi-Xin Guo ◽  
Cong Lai ◽  
Zhi-Biao Shao ◽  
Kai-Liang Xu ◽  
Ting Li
Keyword(s):  
Process Control ◽  
Measurement Method ◽  
Maintenance Cost ◽  
Detection Accuracy ◽  
Temperature Drift ◽  
Proximity Sensor ◽  
Differential Structure ◽  
Position Detection ◽  
Look Up Table ◽  
Rf Energy

The inductive proximity sensor (IPS) is applicable to displacement measurements in the aviation field due to its non-mechanical contact, safety, and durability. IPS can increase reliability of position detection and decrease maintenance cost of the system effectively in aircraft applications. Nevertheless, the specialty in the aviation field proposes many restrictions and requirements on the application of IPS, including the temperature drift effect of the resistance component of the IPS sensing coil. Moreover, reliability requirements of aircrafts restrict the use of computational-intensive algorithms and avoid the use of process control components. Furthermore, the environment of airborne electronic equipment restricts measurements driven by large current and proposes strict requirements on emission tests of radio frequency (RF) energy. For these reasons, a differential structured IPS measurement method is proposed in this paper. This measurement method inherits the numerical separation of the resistance and inductance components of the IPS sensing coil to improve the temperature adaptation of the IPS. The computational complexity is decreased by combining the dimension-reduced look-up table method to prevent the use of process control components. The proposed differential structured IPS is equipped with a differential structure of distant and nearby sensing coils to increase the detection accuracy. The small electric current pulse excitation decreases the RF energy emission. Verification results demonstrate that the differential structured IPS realizes the numerical decoupling calculation of the vector impedance of the sensing coil by using 61 look-up table units. The measuring sensitivity increased from 135.5 least significant bits (LSB)/0.10 mm of a single-sensing-coil structured IPS to 1201.4 LSB/0.10 mm, and the linear approximation distance error decreased from 99.376 μm to −3.240 μm. The proposed differential structured IPS method has evident comparative advantages compared with similar measuring techniques.

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