ferroelectric capacitor การใช้

• Each crossing of metal lines is a ferroelectric capacitor and defines a memory cell.
• This can be used to store information in ferroelectric capacitors, elements of ferroelectric RAM.
• In memory applications, the stored value of a ferroelectric capacitor is read by applying an electric field.
• The combined properties of memory, piezoelectricity, and pyroelectricity make ferroelectric capacitors very useful, e . g . for sensor applications.
• The spontaneous polarization of ferroelectric materials implies a hysteresis effect which can be used as a memory function, and ferroelectric capacitors are indeed used to make ferroelectric RAM for computers and RFID cards.
• Ferroelectric capacitors are used in medical ultrasound machines ( the capacitors generate and then listen for the ultrasound ping used to image the internal organs of a body ), high quality infrared cameras ( the infrared image is projected onto a two dimensional array of ferroelectric capacitors capable of detecting temperature differences as small as millionths of a degree Celsius ), fire sensors, sonar, vibration sensors, and even fuel injectors on diesel engines.
• Ferroelectric capacitors are used in medical ultrasound machines ( the capacitors generate and then listen for the ultrasound ping used to image the internal organs of a body ), high quality infrared cameras ( the infrared image is projected onto a two dimensional array of ferroelectric capacitors capable of detecting temperature differences as small as millionths of a degree Celsius ), fire sensors, sonar, vibration sensors, and even fuel injectors on diesel engines.