Sensor With Dynamic Performance, Dynamic Range
The acceleration sensor is a sensor capable of measuring acceleration. Usually by the mass, dampers, elastic components, sensitive components and appropriate circuit and other components. In the acceleration process, the acceleration value is obtained by using Newton's second law by measuring the inertia force of the mass. According to the different sensor sensors, the common Sensor, including capacitive, inductive, strain, piezoresistive, piezoelectric and so on.
Piezoelectric Sensor, also known as piezoelectric accelerometer. It is also an inertial sensor. Piezoelectric Sensor principle is the use of piezoelectric ceramic or quartz crystal piezoelectric effect, in the accelerometer vibration, the mass on the piezoelectric element on the force also will change. When the measured vibration frequency is much lower than the natural frequency of the accelerometer, the force change is proportional to the measured acceleration.
Based on the world's leading MEMS silicon micro-processing technology, piezoresistive Sensor with small size, low power consumption and other characteristics, easy to integrate in a variety of analog and digital circuits, widely used in automotive crash experiments, test equipment, equipment, vibration monitoring field.
The capacitive Sensor is a capacitance sensor based on the principle of capacitance. Capacitive Sensor / capacitive accelerometer is a more general-purpose Sensor. In some areas irreplaceable, such as airbags, mobile phone mobile devices. The capacitive Sensor / capacitive accelerometer uses a microelectromechanical system (MEMS) process that becomes economical in mass production, thus ensuring a lower cost.
Servo Sensor is a closed-loop test system, with dynamic performance, dynamic range and good linearity and so on. The working principle of the sensor vibration system consists of "mk" system, the same with the general accelerometer, but also on the quality of an electromagnetic coil m, when the pedestal has an acceleration input, the mass deviation from the equilibrium position, the displacement by Displacement sensor is detected, amplified by the servo amplifier into the current output, the current flows through the electromagnetic coil, magnetic field in the permanent magnet to produce electromagnetic recovery force, trying to keep the mass in the instrument case in the original balance position, so The servo Sensor operates in a closed loop state.
As a result of feedback, enhanced anti-jamming capability, improved measurement accuracy and expanded measurement range. Servo acceleration measurement technology is widely used in inertial navigation and inertial guidance systems, and is also used in high-precision vibration measurement and calibration.
By measuring the acceleration due to gravity, you can calculate the tilt angle of the device relative to the horizontal plane. By analyzing the dynamic acceleration, you can analyze the way the device moves. But at the beginning, you will find that light measurement of inclination and acceleration seems not very useful. However, engineers have come up with a lot of ways to get more useful information.
The Sensor can help the robot understand the environment in which it is located. Is it climbing? Still down the slope, did not fall? Or for the flight of the robot, the control of the attitude is also essential. But also to ensure that your robot did not bring their own bomb to the crowd crowded. A good programmer can use the Sensor to answer all of the above questions. The Sensor can even be used to analyze the vibration of the engine.