Satthamsakul, Sutham
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Preferred name
Satthamsakul, Sutham
Alternative Name
Satthamsakul, S.
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Email
sutham.sa@kmitl.ac.th
16 results
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Item type:Publication, Development of compatible induction coil with pure AC for hall effect sensor: A study on metal materials thickness(2018-12-10); - Some of the metrics are blocked by yourconsent settings
Item type:Publication, Improvement microstrip patch antenna for ultra-wideband by C-shaped wide slot(2010-12-01); - Some of the metrics are blocked by yourconsent settings
Item type:Publication, Measurement of metal particles in oil lubricant using hall effect sensor under temperature conditions(2017-11-10); This paper develops a Hall-Effect sensor based system to assess the performance of a lubricant. The measurement methodology is based on the fact that the electromagnetically induced voltage is directly proportional to the amount of contaminants, which in turn affects the state of the lubricant. Two main cases are considered: the metal particles contaminant, and viscosity. The sample lubricant viscosity was experimentally found to be 49.2874 Cst, which is well within the range of internationally accepted values. Furthermore, the lubricant flow rate was also found to be temperature dependent. The output Hall voltage for the contaminated lubricant was 0.8 A for liquid flow rates between 0 to 30 l/h, which significantly deviates from the non-contaminated lubricant. These results suggests that the presented approach is a simple, low cost system capable of accurately assessing the performance of lubricants without consulting the manufacturer's information, even under normal operational loading. - Some of the metrics are blocked by yourconsent settings
Item type:Publication, Empirical study on influences of electromagnetic field on Hall Effect sensor for analysing oil lubricant deterioration(2020-07-30); ; Sriratana, L.This study aims to present the procedure developed for detecting deterioration of oil lubricant under variation of electromagnetic field which was generated by a ferrite-core solenoid coil. The overall diameter of coil was 18.5 mm and the inductance was 22.421 mH from direct current stimulation. The results were then compared to those from frequency stimulation. The optimal efficiency of measurement systems was then assessed by real-time analyzing the metal particle contamination of 3 oil lubricants categorized by grade namely ISO 32, ISO 46 and ISO 68 as well as the viscosity under specific conditions which were flow rate and temperature ranging from 25 °C to 100 °C. The analysis was performed to compare the results from experiments of unused and used (approximately 6 months) oil lubricants. From experiments, the viscosity of oil lubricant was reduced when the temperature exceeded 50 °C. However, the stimulation of coil using 0.9 A direct current could clearly distinguish the difference between the unused and used oil lubricants with metal particle contamination comparing to other values of direct currents applied with 0.42 % of error. Also, the 0.5 kHz of frequency would be the most appropriate value for frequency stimulation with 0.38 % of error. - Some of the metrics are blocked by yourconsent settings
Item type:Publication, Analysis of liquids conductivity using hall effect sensor based on electromagnetic field properties(2017-11-10); ; This paper presents a new methodology of analyzing liquid conductivity via the Hall Effect sensor based on electrochemical properties. Two different magnetic field cores with the same coil length (10 m, AWG 31) were studied, namely ferrite solenoid cores and toroidal iron powder cores (T131-26). The magnetic field generated by both type of cores was then used to generate a Hall voltage with the cores ratios of 1 : 1. The output Hall voltage is, in turn, sent through a microcontroller, together with a 10 bit converter for real time data analysis. The magnetic-field density of the solenoid for analyzing the conductivity of brine is 31 mT for solenoid, and 10.74 mT for toroid cores, respectively. Results from other materials are compared to the reference conductivity values of salt solution, which amounts to 16.211 mS/cm when assessed with the solenoid core, and 16.406 mS/cm when assessed with the toroid core. - Some of the metrics are blocked by yourconsent settings
Item type:Publication, Analysis of electric current by using MySQL database on web server for machine performance evaluation: A case study of air conditioning system(2020-10-13); - Some of the metrics are blocked by yourconsent settings
Item type:Publication, Gain and radiation improvement technique for rectangular patch antenna(2009-01-01); - Some of the metrics are blocked by yourconsent settings
Item type:Publication, Development of a Capacitive Sensing Module to Detect the Concentration of Isopropyl Alcohol for Covid-19 Disinfection Using Small Capacitance to DC Converter(2024-01-01); - Some of the metrics are blocked by yourconsent settings
Item type:Publication, Contamination Measurement Techniques in Hydraulic Fluid Based on Hall Effect Sensor(2024-01-01); Khummongkol, RojaneeThis paper proposed two methods to examine metal particles in fluid using Hall Effect Sensor under the condition of nondestructive testing based on two conditions: test of particles in oil samples, and test of particles in industrial machinery simulation. Hall Effect Sensor was a low-cost device had ability to detect magnetic fields in objects, so this work applied Hall Probe to measure the density of metal in liquid. Hereby, hydraulic liquid was selected to examine because it was one of the most use in industrial machines. By using the sensor, two types of experiment were designed: test of oil sample, and test of simulation process, where the results showed that Hall Effect Sensor had ability to measure particles in both two types of experiment. For oil sample test, the sensor was able to detect metallic powder when the number of contaminants were greater than or equal to 10 milligrams (equivalented to NAS 15 standard). On the other hand, to measure particle in simulation process, magnetic field were generated in two ways, i.e. use of electromagnet, and use of permanent magnet. For using electromagnet as magnetic field source, the result showed that temperature had an influence on metal particle evaluation. Therefore, to get the most accurate value, system's temperature had to employed in calculation process. While, the result of using permanent magnet to generate magnetic field showed that the relationship between output voltage and amount of metal particles were probably in linear form. To apply this method in industrial applications could be an inexpensive way to help officer in detecting metal particle in oil which was able to extend service time of hydraulic liquid properly. - Some of the metrics are blocked by yourconsent settings
Item type:Publication, Development of sensor module for detecting the magnetron power based on microwave oven frequency(2018-12-10); This study presents the design of sensor module to be used in analyzing the electromagnetic power created from magnetron by using microwave as the case study on basis of Rectenna (Rectifying antenna) consisting of 2 main parts including sensing part and transduction part. On part of sensing part, the design would be made on the basic principle of monopole antenna; on part of transduction part, the design would be made on the basis of rectifier circuit, to function in converting the electromagnetic power received from magnetron to be in form of DC current, here the Hall Effect Sensor that was installed inside the current sensor module was used as the measuring equipment, with Arduino UNO R3 as the controller for recording electrical current including temperature. The experimental results would be used to analyze the appropriate form of sensor module. This research compared sensor module for 3 forms including Type A, Type B, and Type C, with different sizes of diameter of wires consisting, by comparing the efficiency in preventing the leak of measured power. According to the test of sensor modules in 3 forms on the same condition, it was found that the means of electrical current from converting the electromagnetic power of microwave.