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Transcript 
P14421
Smart PV Panel
Sensor Test Plan
REVISION HISTORY:
Rev.
1
Initial Release
Description
Author
SPK
Date
12/16/13
Table of Contents
1.
Sensor Functionality Test ........................................................................................................ 2
1.1. Setup .................................................................................................................................... 2
1.2. Procedure ............................................................................................................................. 2
Page 1 of 4
1. Sensor Functionality Test
1.1.
Setup
1.1.1. Mount ambient temperature, ambient light, and panel temperature (thermocouple
probe amp) on a breadboard.
1.1.2. Connect a thermocouple probe to the thermocouple amplifier in the dual-rail supply
configuration (see data sheet).
1.1.3. Place a 100Ω resistor between the voltage output of the ambient temperature
sensor and ground.
1.1.4. Place a 100kΩ resistor between the current output of the ambient light sensor and
ground.
1.1.5. Apply +Vcc to any necessary terminals, -Vcc to any necessary terminals, and a
common/ground to any necessary terminals.
1.2.
Procedure
1.2.1. Verify that sensors are operational
1.2.1.1.
Thermocouple
1.2.1.1.1.
Place the thermocouple probe on any surface.
1.2.1.1.2.
Measure the voltage output of the amplifier, and interpret the
temperature as given by the output curve in the data sheet.
1.2.1.1.3.
Verify surface temperature with IR thermometer or similar device.
1.2.1.2.
Ambient Temperature
1.2.1.2.1.
1.2.1.3.
Using a thermometer, verify that the output voltage of the ambient
temperature sensor corresponds to the temperature indicated on
the thermometer.
Ambient Light
1.2.1.3.1.
For an arbitrary lighting level, record the voltage across the 100kΩ
resistor at the output of the ambient light sensor.
1.2.1.3.2.
Shine a light at the sensor, and verify that a voltage spike is seen
across the 100kΩ resistor.
1.2.2. Verify sensor interface functionality
1.2.2.1.
Construct interrupt logic circuit on a breadboard
Page 2 of 4
1.2.2.2.
Using switches, emulate the comparator outputs
1.2.2.3.
Verify that the output of the interrupt logic circuit drives ‘high’ at the
appropriate time.
Page 3 of 4
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