Hybrid Data Acquisition and Analysis System for Flowing Medium Lasers

Dohare, Rajeev Kumar; Mainuddin, Mainuddin; Singhal, Gaurav

doi:10.14429/dsj.70.14902

Cited by 8 publications

(3 citation statements)

References 9 publications

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“…Developed compact flow control system utilises a unique hybrid architecture [7][8][9][10][11][12] implemented apparently for the first time for operating high power flowing medium COIL laser. A basic building block diagram of hybrid data acquisition and flow control system is shown in Fig.…”

Section: Flow Control Hybrid Das Architecture and Implementationmentioning

confidence: 99%

“…In order to address these aspects a compact hybrid real time flow control system has been developed and utilised for buffer gas supply including in operation flow variation in (using Ramp VI pattern of) LabVIEW 2014 platform with software flexibility. The developed compact Hybrid DAS is compact and can be operated from the remote distance of around 35 m with obstacle sand at 80 m line of sight 7 . The novelty of the work primarily lies in it being a Hybrid system using Master -Slave concept, in which the master module controls the slave module using wireless communication.…”

Section: Introductionmentioning

confidence: 99%

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Real Time Flow Control System for Precise Gas Feed in COIL

2022

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This paper reports development of a real time flow control system for precise, controlled and uniform gas feed to a flowing medium Chemical Oxygen Iodine Laser (COIL). The optimal operation of this prominent laser depends upon the desired supply of gas constituents such as nitrogen (N2), chlorine (Cl2) and iodine (I2) to achieve adequately mixed laser gas. The laser also demands real time variation of flow rates during gas constituent transitions in order to maintain stabilized pressures in critical subsystems. Diluent nitrogen utilized for singlet oxygen transport is termed as primary buffer gas and that for iodine transport is termed as secondary buffer gas (with main and bypass components). Also, nitrogen in precise flows is used for mirror blowing, nozzle curtain, cavity bleed and diffuser startup. A compact hybrid data acquisition system (Hybrid DAS) for precise flow control using LabVIEW 2014 platform has been developed. The supported flow ranges may vary from few mmole.s-1 to few hundred mmole.s-1. The estimated relative uncertainty in the largest gas component i.e. primary buffer gas feed is nearly 0.7%. The implementation of in-operation variation using flow ramp enables swift stabilization of singlet oxygen generator pressures critical for successful COIL operation. The performance of Hybrid DAS is at par with fully wired DAS providing the crucial benefit of remote field operation at distances of nearly 80m in line of sight and 35m with obstacles

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Section: Flow Control Hybrid Das Architecture and Implementationmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Real Time Flow Control System for Precise Gas Feed in COIL

2022

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“…This paper focuses primarily upon chemical generation of iodine by employing CuI-Cl 2 reaction mechanism and performs parametric investigation and analysis by using developed DAS based on wireless Wi-Fi interface [9][10][11][12][13][14] . DAS is configured in order to specifically meet the needs of online parametric measurement and operational requirements.…”

Section: Introductionmentioning

confidence: 99%

Data Acquisition System for Chemical Iodine Generation Suitable for Flowing Medium Chemical Oxygen Iodine Laser

et al. 2021

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Development of infrared flowing medium lasers needs to be envisaged in a manner that practical aspects such as system compactness, short readiness time, low system size, weight and power are met to make them field deployable. In this context, the critical aspect of in-situ production of lasing species (Iodine) in Chemical Oxygen Iodine Lasers (COIL), one of the most potent flowing medium lasers, has been investigated. The paper dwells on chemical generation of iodine and its precise flow and parameter control by implementing a customised Data Acquisition System (DAS). Iodine is generated in a chemical reaction of Cuprous Iodide (CuI) with chlorine. This is achieved by precisely controlled flow of chlorine diluted with a carrier gas (N2 ) in a ratio of 1:2. DAS includes regulated gas feed, accurate thermal stabilisation, relevant diagnostics and implementation of necessary safety interlocks in a real time operation scenario for establishing the system efficacy and scalability. The studies have demonstrated chemically generated iodine flow rate of ~ 1.2 mmol.s-1 for Cl2 flow rate of ~3 mmol.s-1 all measured in real time using the developed DAS with a conversion efficiency of 80%. Developed I2 supply system has potential to deliver iodine on demand with required flow rates, measurement uncertainty of ~ 4.5 percent and advantages of smaller specific weight and size with reduced system readiness time and electrical power supply using DAS system with adequate safety interlocks.

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Simulation of Optical FBG Based Sensor for Measurement of Temperature, Strain and Salinity

Ashraf¹,

Mainuddin²

2022

Lecture Notes in Electrical Engineering

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Hybrid Data Acquisition and Analysis System for Flowing Medium Lasers

Cited by 8 publications

References 9 publications

Real Time Flow Control System for Precise Gas Feed in COIL

Real Time Flow Control System for Precise Gas Feed in COIL

Data Acquisition System for Chemical Iodine Generation Suitable for Flowing Medium Chemical Oxygen Iodine Laser

Simulation of Optical FBG Based Sensor for Measurement of Temperature, Strain and Salinity

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