Automated Measurement of Sensors Characteristics using Computer

Studies the characteristics of various sensor using Computer based data acquisition and control system.

The following experiments to be performed –

1. Thermocouple : Temperature Vs. thermocouple output in mV.
2. LVDT : Mechanical Displacement vs. LVDT’s output voltage.
3. Photodiode :
   • To draw the Reverse Bias Voltage ( V_R) Vs. Current ( I_R )  when illumination (L) is constant.
   • To draw the Illumination ( L ) Vs. Current ( I_R )  characteristics when reverse bias voltage ( V_R) is constant.

Spec  Sheet :

1. Thermocouple Characteristics experimental setup :
   1. Dual K type thermocouple : Length 8 “
   2. Tube Furnace : 500 degree Centigrade ,natural cooling
   3. Signal conditioner : 3 Nos.
   4. Furnace controller
   5. Temperature indicator
   6. Digital voltmeter
2. LVDT Characteristics experimental setup :
   1. LVDT  fitted with cam operated DC servomotor
   2. LVDT Signal conditioner
   3. Proximity switch
   4. Motor controller
   5. Digital voltmeter
3.  Photodiode Characteristics experimental setup :
   1. PIN  Diode
   2. Signal conditioner : 3 Nos.
   3. Intensity controller
   4. Digital voltmeter : 2 Nos.
   5. Luxmeter