Saturday, November 8, 2014

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Elements of a control system | Technology
The robots use sensors constriurem sentry the unit normal light, infrared light and touch. The sensors transform the information sentry they receive from the environment into an electrical signal, the control system is introduced to compare it with the signal refenrència. Some types of sensors: LDR: variable resistor with light detectors for dark or clarity. NTC: variable resistor with temperature sensors for temperature. CNY70: infrared transmitter and receiver to detect the reflected infrared. TSUS5400: infrared transmitter and receiver. Final race: for contact detection.
The reference signal is compared with the value senyald'entrada. Buyer: The buyer, as the name suggests, compares the input signal with the reference or set point. When the cough difference between two signals exceeds a certain value, the transistor passes from the cutting sentry area to saturation, sentry indicating that the difference between the reference signal and the input has exceeded the predetermined value. Elements of control: The control action is carried out with the transistor relay, activated on signal transistor. The relay is activated and when your contacts change position, light bulb. Output Signal: The control element is emitted signal sosritda, acting on the element which performs the control action. sentry Actuator: The actuator is the bulb, because, ignite, the light level increases the area of iintervenció. Controlled Variable: The system inspects sentry the order to act accordingly. Feedback: In this circuit, the feedback occurs through the continuous monitoring of the controlled variable.
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