Miniature Guided Wave Radar for Precise level Measurement using Time Domain Reflectrometry (TDR) Principle [ READ ]
Ashish Sahare, Sushant Chavan, D P Rathod,Raaghu Raichur
The aim of paper is to achieve a precise level measurement in the field of industrial tank. The principle of measurement is based on Time Domain Reflectrometry (TDR), which is well known measurement technique in telecommunication industries for evaluating electric and dielectric property of various material. Despite all advancement made within last few years, there is still lack of low cost, small TDR meter equipment in market. This paper proposes a design leads to development of low cost TDR meter with high resolution. In order to achieve high resolution, an extremely small time of incident and reflection pulse is thus required to be precisely measured. The key techniques of pulse generation and time measurement are introduce with the selection of Guided Radar Probe (GWR) for accuracy even when the measurement within a highly unstable environment. The measurement is accomplished with the Charge Time Measurement Unit (CTMU), which is responsible to measure time with 3.5 ps resolution. Hardware design were discuss with the various parameter. Due to low cost and get rid of complex laboratory setup, the TDR meter can be used in field of chemical, petroleum, shipbuilding and geoscience industries.
Ashish Sahare, Sushant Chavan, D P Rathod,Raaghu Raichur
The aim of paper is to achieve a precise level measurement in the field of industrial tank. The principle of measurement is based on Time Domain Reflectrometry (TDR), which is well known measurement technique in telecommunication industries for evaluating electric and dielectric property of various material. Despite all advancement made within last few years, there is still lack of low cost, small TDR meter equipment in market. This paper proposes a design leads to development of low cost TDR meter with high resolution. In order to achieve high resolution, an extremely small time of incident and reflection pulse is thus required to be precisely measured. The key techniques of pulse generation and time measurement are introduce with the selection of Guided Radar Probe (GWR) for accuracy even when the measurement within a highly unstable environment. The measurement is accomplished with the Charge Time Measurement Unit (CTMU), which is responsible to measure time with 3.5 ps resolution. Hardware design were discuss with the various parameter. Due to low cost and get rid of complex laboratory setup, the TDR meter can be used in field of chemical, petroleum, shipbuilding and geoscience industries.
