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Nazar Ul Islam, Muhammad
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Publications (10 of 10) Show all publications
Nazar Ul Islam, M., Cheng, P. & Oelmann, B. (2018). Torque sensor design considering thermal stability for harsh industrial environments. In: Proceedings of the International Conference on Sensing Technology, ICST: . Paper presented at 12th International Conference on Sensing Technology (ICST), Univ Limerick, Limerick, IRELAND, DEC 04-06, 2018 (pp. 83-86). IEEE, Article ID 8603591.
Open this publication in new window or tab >>Torque sensor design considering thermal stability for harsh industrial environments
2018 (English)In: Proceedings of the International Conference on Sensing Technology, ICST, IEEE, 2018, p. 83-86, article id 8603591Conference paper, Published paper (Refereed)
Abstract [en]

This paper presents a torque sensor design based on a differential pressure measurement, focusing on thermal stability. The sensor utilizes the principle of measuring the differential volumetric strain due to the applied torque. The proposed design of the sensor is an improvement to the previous design of the sensor. Both the previous design and the improved design are discussed in terms of thermal stability. Comprehensive thermal simulations are conducted on the design in order to compare the thermal stability and performance of the sensors. Based on the presented results it is shown that prosed design of the sensor can achieve at least 99.61% better stability then the previous design. The range of the sensor is +/- 150N.m. Furthermore, it is also concluded that the new design also improves on the manufacturability, ease of integration and overall size of the sensor.

Place, publisher, year, edition, pages
IEEE, 2018
Series
International Conference on Sensing Technology, ISSN 2156-8065
Keywords
Torque measurement, Strain, Mechanical factors, Pressure measurement
National Category
Electrical Engineering, Electronic Engineering, Information Engineering
Identifiers
urn:nbn:se:miun:diva-35805 (URN)10.1109/ICSensT.2018.8603591 (DOI)000458872800016 ()2-s2.0-85061485089 (Scopus ID)978-1-5386-5147-6 (ISBN)
Conference
12th International Conference on Sensing Technology (ICST), Univ Limerick, Limerick, IRELAND, DEC 04-06, 2018
Projects
SMART (Smarta system och tjänster för ett effektivt och innovativt samhälle)
Available from: 2019-03-19 Created: 2019-03-19 Last updated: 2020-01-29Bibliographically approved
Cheng, P., Nazar Ul Islam, M. & Oelmann, B. (2017). Torque Sensor Based on Differential Air Pressure Using Volumetric Strain. IEEE Sensors Journal, 17(11), 3269-3277, Article ID 7902159.
Open this publication in new window or tab >>Torque Sensor Based on Differential Air Pressure Using Volumetric Strain
2017 (English)In: IEEE Sensors Journal, ISSN 1530-437X, E-ISSN 1558-1748, Vol. 17, no 11, p. 3269-3277, article id 7902159Article in journal (Refereed) Published
Abstract [en]

This paper proposes a torque sensor based on the differential air pressure measurement method using the volumetric strain of a mechanical sensing structure. A model of the measurement system based on the differential air pressure from the volumetric strain of the mechanical sensing structure is proposed and theoretically discussed. The error sources are identified and an error propagation model is presented for the proposed torque measurement method. Considering these error sources, a prototype torque sensor is presented as a case study for the method verification. Both the mechanical and readout electronics designs are discussed and analyzed. The mechanical sensitivity, resolution, and maximum stresses are analyzed using finite-element modeling. Based on the results from the simulation, a prototype torque sensor is manufactured and experimentally verified using a readout electronics design. For verification, the sensor prototype is measured under static torque to have a sensitivity of 0.04272V/N. m and a range of +/- 117N . m. Compared with the nominal mechanical sensitivity result from the FEM simulation, this measured sensitivity has a difference less than 6%. The noise analysis of the designed readout electronics shows that the resolution of 0.006% can be achieved with this design. Furthermore, hysteresis analysis shows an error of 0.012% of full scale. From these results, it is also shown that the actual performance of the sensor is mainly limited by the differential pressure sensor and the readout electronics design and is not by the mechanical design of the sensor.

Keywords
Torque measurement, strain, mechanical factors, pressure measurement
National Category
Electrical Engineering, Electronic Engineering, Information Engineering
Identifiers
urn:nbn:se:miun:diva-30839 (URN)10.1109/JSEN.2017.2695060 (DOI)000401083200006 ()2-s2.0-85028919396 (Scopus ID)STC (Local ID)STC (Archive number)STC (OAI)
Projects
SMART (Smarta system och tjänster för ett effektivt och innovativt samhälle)
Available from: 2017-06-09 Created: 2017-06-09 Last updated: 2020-01-29Bibliographically approved
Nazar Ul Islam, M., Cheng, P. & Oelmann, B. (2016). Design optimization of differential air pressure sensor calibration setup for sensitivity minimization to thermal gradient. In: 2015 IEEE 12th International Conference on Electronic Measurement and Instruments, ICEMI 2015: . Paper presented at 2th IEEE International Conference on Electronic Measurement and Instruments, ICEMI 2015; Qingdao; China; 16 July 2015 through 18 July 2015; Category numberCFPI533C-PRT; Code 122296. IEEE conference proceedings, Article ID 7494452.
Open this publication in new window or tab >>Design optimization of differential air pressure sensor calibration setup for sensitivity minimization to thermal gradient
2016 (English)In: 2015 IEEE 12th International Conference on Electronic Measurement and Instruments, ICEMI 2015, IEEE conference proceedings, 2016, article id 7494452Conference paper, Published paper (Refereed)
Abstract [en]

This paper focuses on the thermal stability of a high performance, low-range calibration setup for differential airpressure sensors. The setup is a dual parallel chamber design with the full range of ±320 Pa, which can be translated to a temperature mismatch of only about 0.93oC between the chambers. Due to the limitations of existing temperature measurement technology, we propose a finite element model(FEM) analysis to study the effect of thermal gradient on the calibration setup. The model setup includes the dual parallel chamber design inside a conventional climate chamber. From the conducted analysis we observe that, due to the non-ideal heat distribution inside the climate chamber, the calibration setup can experience an error of more than 20 % of full range.To minimize this error, we propose an optimized dual cascaded chamber calibration setup design and verify its thermal performance under the same environmental setup. The results show that the proposed design reduces the error, due to thermal gradient, down to 1.8 % of full range. In conclusion it is also discussed that the proposed design reduces error sources related to its mechanical complexity. Future work is proposed on the design and implementation of the optimized design.

Place, publisher, year, edition, pages
IEEE conference proceedings, 2016
Keywords
Actuators, Calibration, Electronics, Mechanical factors, Temperature measurement
National Category
Electrical Engineering, Electronic Engineering, Information Engineering
Identifiers
urn:nbn:se:miun:diva-26532 (URN)10.1109/ICEMI.2015.7494452 (DOI)2-s2.0-84978234737 (Scopus ID)STC (Local ID)978-1-4799-7071-1 (ISBN)STC (Archive number)STC (OAI)
Conference
2th IEEE International Conference on Electronic Measurement and Instruments, ICEMI 2015; Qingdao; China; 16 July 2015 through 18 July 2015; Category numberCFPI533C-PRT; Code 122296
Available from: 2015-12-16 Created: 2015-12-16 Last updated: 2020-01-29Bibliographically approved
Nazar Ul Islam, M., Cheng, P. & Oelmann, B. (2016). Functional verification of a torque sensor based on the volumetric strain method. In: Proceedings - 2016 IEEE International Power Electronics and Motion Control Conference (PEMC): . Paper presented at 17th IEEE International Power Electronics and Motion Control Conference, PEMC 2016; Festival and Congress CentreVarna; Bulgaria; 25 September 2016 through 28 September 2016 (pp. 818-823). IEEE, Article ID 7752099.
Open this publication in new window or tab >>Functional verification of a torque sensor based on the volumetric strain method
2016 (English)In: Proceedings - 2016 IEEE International Power Electronics and Motion Control Conference (PEMC), IEEE, 2016, p. 818-823, article id 7752099Conference paper, Published paper (Refereed)
Abstract [en]

This paper presents an experimental comparative analysis of a torque measurement method based on volumetric strain, utilizing a prototype torque sensor design is compared to a reference high performance torque sensor. A brief description of the background work of the numerical analysis of the method is also discussed as well as the readout electronics design. Based on the simulations and readout electronics analysis it is concluded that the sensor has a mechanical range of ±300 N·m. The manufacturing details of the prototype torque sensor are also discussed. A test setup is used to place the two torque sensors in line, to allow comparison for which a high performance conventional off-the-shelf torque sensor is selected. The experiments show that the proposed method of torque measurement can be fully implemented and used to measure torque with higher response time, resolution and wider range. Furthermore, future work is proposed to fully characterize the sensor over the full range using a reference setup rather than a torque sensor, as the available conventional sensors cannot be used to characterize the prototype torque sensor in full range with higher performance than the sensor itself.

Place, publisher, year, edition, pages
IEEE, 2016
Keywords
Electronics, Mechanical factors, Pressure measurement, Strain, Torque
National Category
Embedded Systems
Identifiers
urn:nbn:se:miun:diva-29385 (URN)10.1109/EPEPEMC.2016.7752099 (DOI)000390590000118 ()2-s2.0-85008263103 (Scopus ID)STC (Local ID)978-1-5090-1798-0 (ISBN)STC (Archive number)STC (OAI)
Conference
17th IEEE International Power Electronics and Motion Control Conference, PEMC 2016; Festival and Congress CentreVarna; Bulgaria; 25 September 2016 through 28 September 2016
Projects
SMART (Smarta system och tjänster för ett effektivt och innovativt samhälle)
Available from: 2016-12-01 Created: 2016-12-01 Last updated: 2020-01-29Bibliographically approved
Nazar Ul Islam, M., Cheng, P. & Oelmann, B. (2016). Method of torque measurement based on volumetric strain. In: Proceedings of the SICE Annual Conference 2016 Tsukuba, Japan, September 20-23, 2016: . Paper presented at 55th Annual Conference of the Society of Instrument and Control Engineers of Japan, SICE 2016; Tsukuba; Japan; 20 September 2016 through 23 September 2016 (pp. 116-123). IEEE, Article ID 7749205.
Open this publication in new window or tab >>Method of torque measurement based on volumetric strain
2016 (English)In: Proceedings of the SICE Annual Conference 2016 Tsukuba, Japan, September 20-23, 2016, IEEE, 2016, p. 116-123, article id 7749205Conference paper, Published paper (Refereed)
Abstract [en]

This paper proposes a torque measurement method based on volumetric strain. A model of the measurement system based on the differential pressure monitoring is proposed and theoretically discussed. The error sources are identified and an error propagation model is presented for the proposed torque measurement method. Considering these error sources, a prototype torque sensor is presented as a case study for the method verification. Both the mechanical and readout electronics design are discussed and analyzed. The mechanical sensitivity and maximum stresses are analyzed using Finite Element Method. Whereas, the readout electronics is experimentally verified using an off-the-shelf high performance differential pressure sensor. The results from the conducted analysis show that the presented design of torque sensor can be used to measure torque in the range of ±300 N·m with the resolution of 0.006 % of full scale. The maximum observed stress on the proposed structure is 220 MPa. The experiments conducted on the readout electronics show that the differential pressure sensor is the limiting factor in the design when it comes to the resolution. In conclusion it is summarized that the presented torque sensor can be used in industrial applications requiring both high resolution and wide range. Moreover, the method is fully adaptable to various performance requirements in terms of range and resolution. The future work is also discussed to implement the presented design and characterize it using reference instruments.

Place, publisher, year, edition, pages
IEEE, 2016
Keywords
Electronics, Mechanical factors, Pressure measurement, Strain, Torque
National Category
Embedded Systems
Identifiers
urn:nbn:se:miun:diva-29384 (URN)10.1109/SICE.2016.7749205 (DOI)000391463900005 ()2-s2.0-85008253467 (Scopus ID)STC (Local ID)978-4-907764-50-0 (ISBN)STC (Archive number)STC (OAI)
Conference
55th Annual Conference of the Society of Instrument and Control Engineers of Japan, SICE 2016; Tsukuba; Japan; 20 September 2016 through 23 September 2016
Projects
SMART (Smarta system och tjänster för ett effektivt och innovativt samhälle)
Available from: 2016-12-01 Created: 2016-12-01 Last updated: 2020-01-29Bibliographically approved
Nazar Ul Islam, M. (2016). Method of torque measurement based on volumetric strain. (Doctoral dissertation). Sundsvall: Mid Sweden University
Open this publication in new window or tab >>Method of torque measurement based on volumetric strain
2016 (English)Doctoral thesis, comprehensive summary (Other academic)
Place, publisher, year, edition, pages
Sundsvall: Mid Sweden University, 2016. p. 122
Series
Mid Sweden University doctoral thesis, ISSN 1652-893X ; 249
National Category
Electrical Engineering, Electronic Engineering, Information Engineering
Identifiers
urn:nbn:se:miun:diva-29722 (URN)STC (Local ID)978-91-88025-76-0 (ISBN)STC (Archive number)STC (OAI)
Public defence
2016-10-21, M102, Sundsvall, 10:15 (English)
Supervisors
Projects
SMART (Smarta system och tjänster för ett effektivt och innovativt samhälle)
Note

Vid tidpunkten för disputationen var följande delarbeten opublicerade: delarbete 1 accepterat, delarbete 5 accepterat.

At the time of the doctoral defence the following papers were unpublished: paper 1 accepted, paper 5 accepted.

Available from: 2016-12-21 Created: 2016-12-21 Last updated: 2020-01-29Bibliographically approved
Nazar Ul Islam, M., Cheng, P. & Oelmann, B. (2015). High performance reference setup for characterization and calibration of low-range differential pressure sensors. IEEE Transactions on Instrumentation and Measurement, 64(1), 154-162
Open this publication in new window or tab >>High performance reference setup for characterization and calibration of low-range differential pressure sensors
2015 (English)In: IEEE Transactions on Instrumentation and Measurement, ISSN 0018-9456, E-ISSN 1557-9662, Vol. 64, no 1, p. 154-162Article in journal (Refereed) Published
Abstract [en]

The calibration of sensors is one of the most frequently carried out maintenance operations on sensor networks. This paper presents the design of a reference instrument for the static calibration of low-range (up to ±320 Pa) differential pressure sensors. A method is proposed for the calibration setup and the design issues are discussed in addition to a complete error analysis. An experimental setup is also proposed. From the conducted experiments, it is verified that the sensitivity of the reference setup is at least 0.032 Pa with the achievable resolution of 0.001% of full scale. This paper also presents an embedded electronics design for both the calibration and the characterization profile handling. A full performance characterization of a sample differential pressure sensor is also presented in terms of sensitivity, linearity, hysteresis, and temperature dependency. A comprehensive discussion involving the design parameters analysis and the worst case performance is also included. In conclusion, it is summarized that the proposed design out performs the conventional reference instruments, so that it can be used for the calibration and characterization of a wide variety of low-range differential pressure sensors.

Keywords
Actuators, calibration, electronics, mechanical factors, pressure measurement
National Category
Electrical Engineering, Electronic Engineering, Information Engineering
Identifiers
urn:nbn:se:miun:diva-24076 (URN)10.1109/TIM.2014.2329739 (DOI)000346085800015 ()2-s2.0-84918505789 (Scopus ID)STC (Local ID)STC (Archive number)STC (OAI)
Note

CODEN: IEIMA

Available from: 2015-01-07 Created: 2015-01-07 Last updated: 2020-01-29Bibliographically approved
Nazar Ul Islam, M. (2015). Reference setup for characterization and calibration of low-range differential pressure sensors. (Licentiate dissertation). Sundsvall: Mittuniversitetet
Open this publication in new window or tab >>Reference setup for characterization and calibration of low-range differential pressure sensors
2015 (English)Licentiate thesis, comprehensive summary (Other academic)
Abstract [en]

In this thesis, a reference setup for the characterization and calibration of low range differential pressure sensors is presented. The setup utilizes the principle of ideal gas law and actuates on the volume for accurate reference pressure inputs for the calibration process. The error sources for the proposed setup are analysed and an error propagation modelis presented. The range of the setup is ±320 Pa, with the resolution of 0.001% of full scale. The verified sensitivity of the setup is 0.032 Pa. A complete characterization of a high performance differential pressure transducer is conducted as a test case study for the performance analysis of the proposed setup. During these experiments the sensitivity of the calibration setup to the thermal gradient is observed. To this end, the effects of thermal gradient on the transient response of the setup are also studied, utilizing a comparative experimental study. From the presented experimental study it is concluded that the thermal gradient can cause the system to remain in transient state for at least 96 hours. To reduce this effect, a mechanical design optimization is proposed and a finite element model is presented to be studied in comparison to its preceding design for its thermal performance. From the results it is concluded that the optimized design can reduce the transient time of the measurement system due to thermal gradient, by 11 times. Future work is also proposed to further investigate the optimized model for implementation purposes.

Place, publisher, year, edition, pages
Sundsvall: Mittuniversitetet, 2015. p. 67
Series
Mid Sweden University licentiate thesis, ISSN 1652-8948 ; 115
National Category
Electrical Engineering, Electronic Engineering, Information Engineering
Identifiers
urn:nbn:se:miun:diva-26528 (URN)STC (Local ID)978-91-88025-09-8 (ISBN)STC (Archive number)STC (OAI)
Presentation
2015-10-08, O102, 13:15 (English)
Supervisors
Available from: 2015-12-16 Created: 2015-12-16 Last updated: 2017-03-02Bibliographically approved
Nazar Ul Islam, M. N. U., Cheng, P. & Oelmann, B. (2015). The effects of temperature gradient on transient behavior of low-range differential air pressure calibration setup. In: Proceedings of the IEEE International Conference on Industrial Technology: . Paper presented at 2015 IEEE International Conference on Industrial Technology, ICIT 2015; Seville; Spain; 17 March 2015 through 19 March 2015 (pp. 1488-1494). (June)
Open this publication in new window or tab >>The effects of temperature gradient on transient behavior of low-range differential air pressure calibration setup
2015 (English)In: Proceedings of the IEEE International Conference on Industrial Technology, 2015, no June, p. 1488-1494Conference paper, Published paper (Refereed)
Abstract [en]

Low range differential air pressure sensors are used widely in various applications. In this paper the effects of temperature change on transient behavior of the calibration setup for differential air pressure sensors, due to temperature gradient are analyzed. A high performance reference setup utilizing ideal gas law, for differential air pressure sensors, is selected for experimental analysis. The range of the setup is ±320 Pa with the achievable resolution down to 0.001% of the full scale. Due to the nature of ideal gas law, the experimental setup should also exhibit a high sensitivity to the temperature gradient on mechanical structure. In order to characterize the effects of this temperature gradient on the transient state of the setup, a two stage comparative experimental study is proposed. In stage one a thermal buffer is introduced surrounding the mechanical structure of the setup and the experiments are conducted by changing the temperature to the system. In stage two the temperature is changed in the same manner, but the experiments are conducted with the original experimental setup. From the results obtained by the experiments using the thermal buffer, it is observed that the temperature change of 5°C, can cause the system to stay in transient state for up to 32 hours with an error of up to 10% of full scale. Whereas, the results from the original calibration setup show that the system stays in transient state for more than 96 hours with a monotonic drift. From the comparative analysis of the experimental results we conclude that the high sensitivity calibration setup for differential air pressure sensors also have a high sensitivity to the temperature gradient. Although the thermal buffer can minimize the effects of the temperature gradient on the transient behavior of the calibration setup, the modification to the existing mechanical design is considered as more practical. Future work is proposed in order to study the thermal gradient on the mechanical structure and design a setup that is less vulnerable to it. © 2015 IEEE.

Keywords
Actuators, Calibration, Electronics, Mechanical factors, Pressure measurement, Temperature measurement
National Category
Electrical Engineering, Electronic Engineering, Information Engineering
Identifiers
urn:nbn:se:miun:diva-25807 (URN)10.1109/ICIT.2015.7125307 (DOI)000377572201070 ()2-s2.0-84937716722 (Scopus ID)STC (Local ID)STC (Archive number)STC (OAI)
Conference
2015 IEEE International Conference on Industrial Technology, ICIT 2015; Seville; Spain; 17 March 2015 through 19 March 2015
Note

Export Date: 28 August 2015

Available from: 2015-09-10 Created: 2015-08-28 Last updated: 2020-01-29Bibliographically approved
Saleem, J., Majid, A., Bertilsson, K., Carlberg, T. & Nazar Ul Islam, M. (2012). Nugget Formation During Resistance Spot Welding Using Finite Element Model. Paper presented at International Conference on Aerospace, Mechanical, Automotive and Materials Engineering. World Academy of Science, Engineering and Technology: An International Journal of Science, Engineering and Technology, 67
Open this publication in new window or tab >>Nugget Formation During Resistance Spot Welding Using Finite Element Model
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2012 (English)In: World Academy of Science, Engineering and Technology: An International Journal of Science, Engineering and Technology, ISSN 2010-376X, E-ISSN 2070-3740, Vol. 67Article in journal (Refereed) Published
Abstract [en]

Resistance spot welding process comprises of electric, thermal and mechanical phenomenon, which makes this process complex and highly non-linear and thus, it becomes difficult to model it. In order to obtain good weld nugget during spot welding, hit and trial welds are usually done which is very costly. Therefore the numerical simulation research has been conducted to understand the whole process. In this paper three different cases were analyzed by varying the tip contact area and it was observed that, with the variation of tip contact area the nugget formation at the faying surface is affected. The tip contact area of the welding electrode becomes large with long welding cycles. Therefore in order to maintain consistency of nugget formation during the welding process, the current compensation in control feedback is required. If the contact area of the welding electrode tip is reduced, a large amount of current flows through the faying surface, as a result of which sputtering occurs.

Keywords
Resistance spot welding, Finite element modeling, Nugget formation, Welding electrode, Numerical method simulation
National Category
Electrical Engineering, Electronic Engineering, Information Engineering
Identifiers
urn:nbn:se:miun:diva-16528 (URN)STC (Local ID)STC (Archive number)STC (OAI)
Conference
International Conference on Aerospace, Mechanical, Automotive and Materials Engineering
Available from: 2012-09-03 Created: 2012-06-21 Last updated: 2017-12-07Bibliographically approved
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