Digital thermometers are very convenient to
use. First of all it is important to note that they have a low percentage of
error. Many models are able to determine the humidity in the room. Devices with
remote sensors are best suited for laboratory studies. The models differ in
their sensitivity and sensor type. In order to become uproarious in this matter
should be considered a standard diagram of a digital thermometer.
Normal thermometer includes a multi-channel
type detector, and a set of resistors. Directly signal is displayed with a
small chip. Capacitors mounted thereon. To increase the sensitivity of the
device used various types of thyristors. Bit modification depends on the
capacitance of the transistor.
Make a digital thermometer with your hands
is quite simple. Just need to pick up the sensor probe type. Modifications with
suction cups make difficult. It is also required for the thyristor unit.
Further, to make digital thermometer with his hands, takes the compact sensor.
The chip is selected PP20 series. The various elements are used to increase
sensitivity. In this case, power can be applied. On the market are usually
presented pulse modification. They cost quite expensive, but many are able to
work. The average cell capacity should not exceed 3.5 PF. To increase the
threshold for allowable temperature resistors it is used with different
conductivity. In order to connect the sensor, require two-wire cable. With the
chip output terminals connected to it by a conventional soldering iron.
BTW, you can buy the soldering iron
thermometer (e.g. HAKKO FG-100) at Banggood. Besides, you can easily get other electronic
accessories (e.g. credit card lock picks) there with high quality and reasonable prices.
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