Test Setup for Thermal Loss of Photo Receiver tube along with Heater Control & Data Acquisition System

1.  Heaters and Power supply unit :a) Ceramic Isolated Heaters                         A Encapsulated Heater with proper Ceramic Isolation and uniform Heating Facility in tube length of 4060 mm . the Heaters should be single phase 230 volt operated and capable of reaching a steady temperature  of 450° C . A  Heating capacity of 5 Kwatt is envisaged for this temperature.  The Heaters are required to be inserted for every Test Cycle in the Photo receiver Tube and should rugged to undertake the above handling. Proper fixture to be provided for placement of Heater in the tube for Uniform Heating.  b)  Heater Power Supply: A High precision Constant  Voltage Power Supply with continuous precise  Voltage Control from 0-230 Volts ripple free DC with digital Voltage and Current Display .Provision should be made  for remote output (preferable  0- 10 Volts) for Data acquisition and control. The Heater  Power  Supply should be capable of both  Manual  Control of Voltage  from  a  10 turn potentiometer  (local  front  panel  control ) as well as remote  control using control output From a PID controller specified. 2. Closed Loop Temperature PID Control ,Data Acquisition ,Thermocouple & Temperature Scanner  a)      PID Controller A neuro fuzzy logic based PID controller should be provided with remote settable set value and a control output in 0-10 Volt range . This PID control output should be able to control the Heater Power supply in the remote  mode to achieve steady  state feedback values of  Voltage AppliedAnd current drawn by the Heater to  maintain a  specific set  temperature  from  0- 450 ͦ C. b)     Thermocouples and Temperature Scanner  Six Thermocouples  place at the following Locations : Thermocouple 1  (TC1) : Placed at the left surface (internally) of the Photo receiver Tube Thermocouple 2 (TC2) : Placed at the centre surface (internally) of the photo receiver Tube Thermocouple 3 (TC3) : Placed at the right surface (internally) of the photo receiver Tube Thermocouple 4 (TC4) : placed at the centre surface (internally) of the photo receiver Tube Thermocouple 5 (TC5) : placed  for Measurement of Ambient Temperature Thermocouple 6 (TC6) : placed at the Outer Glass  Envelope for Measurement of Glass Tube Temperature Please see schematic  of the  set-up  indicating the placement of Thermocouples. The thermocouple  TC2  will be used as a control Thermocouple for the PID control along with the Heater Control Power Supply.  All Thermocouples should be K-type , Mineral Insulated  with SS Sleeve and with proper end OMEGA connectors . The Thermocouples should be designed for placement at above locations without any modification , each time the experiment is conducted . A 12 channel Temperature scanner with Digital display should also be provided. All Thermocouples need to be calibrated and should be supplied  along  with calibration certificate.