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theory:sensor_technology:std_schmitt_trigger

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theory:sensor_technology:std_schmitt_trigger [2018/10/08 18:42]
glangereis ↷ Page name changed from theory:sensor_technology:stc_schmitt_trigger to theory:sensor_technology:std_schmitt_trigger
theory:sensor_technology:std_schmitt_trigger [2018/10/16 06:17] (current)
54.36.148.193 ↷ Links adapted because of a move operation
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 ====== A Schmitt Trigger for sensor level detection ====== ====== A Schmitt Trigger for sensor level detection ======
  
-//We have seen [[st5_sensor_theory#Transfer curve and non-linearity|hysteresis in sensors]]: we can use hysteresis in the comparator to eliminate noise. A Schmitt trigger is a comparator circuit that incorporates positive feedback. As a result, the comparator decision level for a low-to-high transition is higher than the comparator decision level for a high-to-low transition.//​+//We have seen [[st4_sensor_theory#Transfer curve and non-linearity|hysteresis in sensors]]: we can use hysteresis in the comparator to eliminate noise. A Schmitt trigger is a comparator circuit that incorporates positive feedback. As a result, the comparator decision level for a low-to-high transition is higher than the comparator decision level for a high-to-low transition.//​
  
 For a signal with some noise, a plain comparator circuit may result into some transition noise in the output signal which is similar to contact bounce. In <imgref ReadOut16>​ we can see the comparator output for a clean signal. What happens with a noisy signal can be seen in <imgref ReadOut17>​. For a signal with some noise, a plain comparator circuit may result into some transition noise in the output signal which is similar to contact bounce. In <imgref ReadOut16>​ we can see the comparator output for a clean signal. What happens with a noisy signal can be seen in <imgref ReadOut17>​.
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   * Chapter 3: [[theory:​sensor_technology:​st3_measurement_technology|Measurement Technology]]   * Chapter 3: [[theory:​sensor_technology:​st3_measurement_technology|Measurement Technology]]
   * Chapter 4: [[theory:​sensor_technology:​stb_conventions_for_good_graphs_and_tables|Circuits,​ Graphs, Tables, Pictures and Code]]   * Chapter 4: [[theory:​sensor_technology:​stb_conventions_for_good_graphs_and_tables|Circuits,​ Graphs, Tables, Pictures and Code]]
-  * Chapter 5: [[theory:​sensor_technology:​st5_sensor_theory|Basic Sensor Theory]]+  * Chapter 5: [[theory:​sensor_technology:​st4_sensor_theory|Basic Sensor Theory]]
   * Chapter 6: [[theory:​sensor_technology:​st6_sensoractuatorsystems|Sensor-Actuator Systems]] ​   * Chapter 6: [[theory:​sensor_technology:​st6_sensoractuatorsystems|Sensor-Actuator Systems]] ​
   * Chapter 7: [[theory:​sensor_technology:​st7_modelling_main|Modelling]]   * Chapter 7: [[theory:​sensor_technology:​st7_modelling_main|Modelling]]
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   * Chapter 16: [[theory:​sensor_technology:​st16_resistive_sensors|Resistive Sensors]]   * Chapter 16: [[theory:​sensor_technology:​st16_resistive_sensors|Resistive Sensors]]
   * Chapter 17: [[theory:​sensor_technology:​st17_capacitive_sensors|Capacitive Sensors]]   * Chapter 17: [[theory:​sensor_technology:​st17_capacitive_sensors|Capacitive Sensors]]
-  * Chapter 18: [[theory:​sensor_technology:​st18_inductive_sensors|Magnetic Sensors]]+  * Chapter 18: [[theory:​sensor_technology:​st18_magnetic_sensors|Magnetic Sensors]]
   * Chapter 19: [[theory:​sensor_technology:​st19_optical_sensors|Optical Sensors]]   * Chapter 19: [[theory:​sensor_technology:​st19_optical_sensors|Optical Sensors]]
   * Chapter 20: [[theory:​sensor_technology:​st20_actuators|Actuators]] - an example of an electrodynamic motor   * Chapter 20: [[theory:​sensor_technology:​st20_actuators|Actuators]] - an example of an electrodynamic motor
theory/sensor_technology/std_schmitt_trigger.txt · Last modified: 2018/10/16 06:17 by 54.36.148.193