A test to see how quickly the Thermister used in the Thermal Fishing Bob can measure changes in temperature
The thermister measure changes in temperature as changes in resistance, and changes that value into a color value for the Bob.
How quickly can it register a change in temperature of 35 degrees? At room temperature (62 degrees) the thermister shows a steady value. When the thermister is inserted in the mouth under the tongue, it changes value to body temperature (98.6 degrees)
The change in temperature takes @20 seconds to raise the temperature from 62 to 98 The thermister is slower when returning to room temperature, taking 54 seconds to go from body temperature to room temperature.
Questions and next steps
Is the measurement time fast enough?
It is fast enough for slow moving or stationary temp measurements.
It is too slow for fast moving measurements.
What is a faster sensor?
Why I'm interested
The thermal Bob can't be used with the current thermister to quickly respond to changes in temperature. For faster measurement, a [digital temperature sensor] (http://www.adafruit.com/products/381) could be used to get a faster reading, and the faster read time would make display of the temperature value by color much more accurate.