Ultrasonic Range Meter
This PIC-based Ultrasonic Range Meter,the heart of project is PIC16F873,The ultrasonic signal which was received with the reception sensor is amplified by 1000 times(60dB) of voltage with the operational amplifier with two stages. It is 100 times at the first stage (40dB) and 10 times (20dB) at the next stage.As for the dB (decibel), refer to “Logarithm Table”.Generally, the positive and the negative power supply are used for the operational amplifier. The circuit this time works with the single power supply of +9 V.
| Ultrasonic Range Meter More details www.hobby-elec.org |
||
|
|
MAXKITS.COM
