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U.S. Sensor
1832
W. Collins Ave
Orange, CA 92867
Tel: 800-777-6467
Tel: 714-639-1000
Fax: 714-639-1220
Email: sales@ussensor.com |
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Quality
Assurance
THERMISTOR
TESTING

In Figures
5a, 5b and 5c we plot 10 thermistors while also plotting the temperature
of the bath used to test them. Additionally we measure the temperature
of the fixture used to transport the 10 test thermistors from bath to
bath.
Figure
5a shows the 25°C bath in purple, the 70°C bath in red and
the device transporting the thermistors under test is plotted in green.
We can see the temperature of the fixture starting off at equilibrium
at 70°C, watch as it drops in temperature to 25°C, and be assured
that it is at equilibrium at 25°C before recording the thermistor
readings.
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Figure
5a
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Channel
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Reading
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1
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Red
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70.005
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2
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Purple
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25.002
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3
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Green
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24.996
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Figures
5b and 5c show the resistance values of the ten thermistors under
test as well as the actual readings. Any portion of these graphs can be
combined to a single plot and we still have the ability to roll back time
and zoom in on any of the measurements taken. The ADC system is capable
of measuring Temperature, Resistance, Voltage, Current, and Frequency.
| Figure
5b |
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Thermistor
#
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Reading
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1
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19.89435
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2
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19.91929
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3
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20.17861
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4
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20.03014
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5
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20.28891
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Figure
5c |
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Thermistor
#
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Reading
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6
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20.25247
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7
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19.66101
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8
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19.70524
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9
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20.20787
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10
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20.01183
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