Position: Home > Circuit Diagram > Sensor Circuit > Temperature Sensor >Index 2

Low Cost Custom Prototype PCB Manufacturer

Temperature Sensor

Index 2

GROUND_REFERRED_CENTIGRADE_THERMOMETER

Published:2009/6/29 1:57:00 Author:May

GROUND_REFERRED_CENTIGRADE_THERMOMETER
(View)

View full Circuit Diagram | Comments | Reading(786)

GROUND_REFERRED_FAHRENHEIT_THERMOMETER

Published:2009/6/29 1:55:00 Author:May

GROUND_REFERRED_FAHRENHEIT_THERMOMETER
(View)

View full Circuit Diagram | Comments | Reading(928)

0℃_100℃_THERMOMETER

Published:2009/6/29 1:55:00 Author:May

0℃_100℃_THERMOMETER
(View)

View full Circuit Diagram | Comments | Reading(692)

TEMPERATURE_TO_FREQUENCY_CONVERTER

Published:2009/6/29 1:52:00 Author:May

TEMPERATURE_TO_FREQUENCY_CONVERTER
The circuit exploits the fact that when fed from a constant current source, the forward voltage of a silicon diode varies with temperature in a reasonably linear way. Diode D1 and resistor R2 form a potential divider fed from the constant current source. As the temperature rises, the forward voltage of D1 falls tending to turn Q1 off. The output voltage from Q1 will thus rise, and this is used as the control voltage for the CMOS VCO. With the values shown, the device gave an increase ofjust under 3 Hz/℃ (between 0 ℃ and 60 ℃) giving a frequency of 470 Hz at 0 ℃. (View)

View full Circuit Diagram | Comments | Reading(0)

0°F_50°F_THERMOMETER

Published:2009/6/29 1:49:00 Author:May

0°F_50°F_THERMOMETER
(View)

View full Circuit Diagram | Comments | Reading(705)

LOWER_POWER_THERMOMETER

Published:2009/6/29 1:48:00 Author:May

LOWER_POWER_THERMOMETER
(View)

View full Circuit Diagram | Comments | Reading(790)

CENTIGTADE_THERMOEETER

Published:2009/6/29 1:47:00 Author:May

CENTIGTADE_THERMOEETER
(View)

View full Circuit Diagram | Comments | Reading(870)

KELVIN_THERMOMETER_WITH_GROUND_REFERRED_OUTPUT

Published:2009/6/29 1:46:00 Author:May

KELVIN_THERMOMETER_WITH_GROUND_REFERRED_OUTPUT
(View)

View full Circuit Diagram | Comments | Reading(836)

DIFFERENTIAL_TEMPERATURE_SENSOR

Published:2009/6/29 1:44:00 Author:May

DIFFERENTIAL_TEMPERATURE_SENSOR
(View)

View full Circuit Diagram | Comments | Reading(0)

SIMPLE_DIFFERNTIAL_TEMPERATURE_SENSOR

Published:2009/6/29 1:42:00 Author:May

SIMPLE_DIFFERNTIAL_TEMPERATURE_SENSOR
(View)

View full Circuit Diagram | Comments | Reading(748)

REMOTE_TEMPERATURE_SENSING

Published:2009/6/29 1:39:00 Author:May

REMOTE_TEMPERATURE_SENSING
(View)

View full Circuit Diagram | Comments | Reading(0)

BASIC_DIGITAL_THERMOMETER_KELVIN_SCALE_WITH_ZERO_ADJUST

Published:2009/6/29 1:35:00 Author:May

BASIC_DIGITAL_THERMOMETER_KELVIN_SCALE_WITH_ZERO_ADJUST
This circuit allows zero adjustment as well as slope adjustment. The ICL8069 brings the input within the common-mode range, while the 5 K pots trim any offset at 218 °K (-55 ℃), and set scale factor. (View)

View full Circuit Diagram | Comments | Reading(953)

BASIC_DIGITAL_THERMOMETER_KELVIN_SCALE

Published:2009/6/29 1:30:00 Author:May

BASIC_DIGITAL_THERMOMETER_KELVIN_SCALE
The Kelvin scale vers1on reads from0 to 1999°K theoretically，and from 99Q°K to 473°K actually. The 2.26 K resistor brings themput within the ICL7106 VCM range∶twogeneral-purpose silicon diodes or an LED maybe subsituted． (View)