The Car Temperature Gauge is basically the same circuit as March’s project with some minor changes to the input circuit. This circuit will display the water temperature to 1 degree resolution.
It is often difficult to properly calibrate a temperature sensor since there is no suitable aid for doing so available. This article, which describes a temperature reference source, aims at putting this right. Since the source is made variable, the reference temperature may also be used for adjusting thermostats correctly. This may prove useful in […]
At the heart of this heat-sensitive switch is IC LM35 (IC1), which is a linear temperature sensor and linear temperature-to-voltage converter circuit. The converter provides accurately linear and directly proportional output signal in millivolts over the temperature range of 0°C to 155°C. It develops an output voltage of 10 mV per degree centigrade change in […]
Extended Temperature Oscillators Fox Electronics has expanded its line of XpressO configurable crystal oscillators with an extended temperature version of its 3.3 V HCMOS oscillator in a compact 3.2 mm x 2.5 mm package. Part of the FXO-HC33 series, the new oscillator can withstand temperatures from -40°C to +85°C, while delivering tight stabilities down to […]
This radiator temperature indicator can be designed using electronic circuit diagram below. Temperature indicator consists of two special zener diode, D1 and D2, connected in series to ensure accuracy of 5.96 V Zener voltage at 25 ° C. As long as the radiator temperature does not exceed 50 ° C, thermal indicator will flash a […]
Remote temperature measurements have to be linked by some sort of cable to the relevant test instrument. Normally, this is a three-core cable: one core for the signal and the other two for the supply lines. If the link is required to be a two-core cable, one of the supply lines and the signal line […]
High Accuracy Temperature Sensor Microchip Technology Inc., a leading provider of microcontroller, analog and Flash-IP solutions, announced the MCP9808 silicon temperature sensor, which serves a broad range of applications by guaranteeing high accuracy of 0.5 degrees from -20 to +100 degrees Celsius, along with high temperature resolution of 12 bits (0.0625 degrees Celsius/LSB). The MCP9808 […]
As described in the previously article about the AD7711, this family of ADCs device are designed specifically for low frequency, high accuracy industrial transducer applications. This device has an on-chip self calibration to compensate for temperature drift and reference inaccuracy. It is known about the possibilities to calibrate the ADC to very high accuracy when […]