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  • What is Capacitance?
    the theory of Capacitance Level relies on a consistent dielectric, any composition change may cause a dielectric. change. This will affect the instrument calibration and result in erroneous readings. Re-calibration is required if the. material dielectric changes. Tank Construction Material. The ARJAY probe
  • Capacitance Sensor System: How a Small Electric Field Can Save You Big Money
    measurements for general manufacturing applications, would not work well here as the mirror-like surface of the spindle would create too much light scatter, preventing the sensor from producing accurate readings. A more viable solution is a custom designed capacitance sensor system. A capacitance sensor uses
  • Resistance and Capacitance Meter Using a PIC 16C622
    are ideal for designs having size constraints. Resistance and Capacitance Meter Using a PIC16C622. M. AN611. Resistance and Capacitance Meter Using a PIC16C622. This family of devices also introduce on-chip brown-out. Author: Rodger Richey. reset circuitry and a filter on the reset input (MCLR
  • Non-Contact Thickness Measurement of Semiconductor Wafers
    removal rates are within customer specifications. The thickness measurement device must not only be capable of producing a highly accurate reading, it must do so without contacting the wafer surface. Capacitance based measurement probes have long been employed as a means of non-contact measurement
  • Clamp Meters: Getting the Most-Needed Functions
    K thermometer to get that second simultaneous reading. In some cases, technicians use a dual type-K thermometer to take both readings. With dual temperature probe inputs and a built-in T1 minus T2 function, a dual thermometer automatically provides a differential value that is useful in determining
  • Introduction to Capacitive Sensing
    . MEASURING FREQUENCY. vice Routine. The value of TMR1 is then read and. compared to previous readings. This constitutes a. Once the oscil ator is constructed, its frequency must. single scan of a button. If the current value of TMR1 is. be monitored to detect the drop in frequency caused by. significantly
  • Software Handling for Capacitive Sensing
    the reading of the current sensor which has. series of blocks dubbed, “Cap ISR”, which are blocks of. just completed its scan, the Timer1 value must be read. code executed on an interrupt when the T0IF flag is set. An unsigned integer variable is required to hold the raw. These blocks execute decision making
  • Capacitive Sensing Using Period Method (.pdf)
    changes in capacitance using a period. below: measurement instead of frequency measurement. Using this new method provides higher resolution than. EQUATION 1: the frequency measurement and permits faster. scanning. reading = (FOSC/4)/(FRELAXOSC) • N. THEORY OF OPERATION. The Timer1 value