Design of an Electronic Flow Transmitter Using LVDT & Hall Sensor

A variable area type flow sensor is Rotameter in which the flow rate is measured by the position of float. Conventional Rotameter is generally used as a local indicator and hence special technique is needed to transmit the reading of rotameter to a remote distance. In the present paper, an improved hall probe based technique has been developed to convert the float movement into electrical current signal which can be transmitted to a remote station. The experimental reports are presented in the paper. A very good performance characteristic has been observed.