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  • Passive RFID Basics
    Radio Frequency Identification (RFID) systems use radio frequency to identify, locate and track people, assets, and animals. Passive RFID systems are composed of three components an interrogator (reader), a passive tag, and a host computer. The tag is composed of an antenna coil and a silicon chip
  • Accelerometer Noise
    is predominantly dependent on. the passive components R1 and C. If R1 is too large, the low frequency response. will be temperature dependent. Let V be the voltage and Q be the charge sensitivity of the accelerometer. Q =. VC and let A2n be the power spectral density in terms of acceleration. Then. equation
  • An Integrated Fan Speed Control Solution Can Lower System Costs, Reduce Acoustic Noise, Power Consumption and Enhance System Reliability
    the popularity of brushless DC. began moving from passive to active solutions. In the. (BDC) cooling fans (Figure 1). In addition to the. days of the 486 microprocessor, the processor cooling. advantages of conventional fans, BDC fans have a. was implemented by a heat sink and an embedded fan. significantly
  • Reduce Load Capacitance in Noise-Sensitive, High-Transient Applications, through Implementation of Active Filtering (.pdf)
    both requirements using passive components, the two objectives become diametrically opposed. Minimizing periodic and random deviations (PARD) requires filtering, whereas fast transient response is impeded by filtering. Reduce Load Cap. with Active Filtering:EMI W H I T E P A P E R. Reduce
  • Motion Control Drives Infusion Pump
    First. The mechanical part of the pump unit consists of an anodized aluminum frame topped by a yoke with two flanges on the underside in a fork configuration. The disposable cartridge, which sits atop the yoke, essentially consists of two parallel, transparent plastic tubes, each with passive check
  • Statistical Process Control of Wireless Device Manufacturing Needs Production Worthy S-Parameter Measurements
    ). A VNA can provide a high level of precision in auto-reversing s-parameter measurements of active and passive multi-port devices at microwave frequencies. Within 350ms, a good VNA can collect 100 or more data sets with 1kHz resolution. If the test executive contains an appropriate library of RF macros
  • Hybrid Ventilation in the Harm A. Weber Academic Center: A Late- Summer Case Study (.pdf)
    Passive ventilation employs a set of strategies, potentially including building shape, internal configuration, orientation, aperture size and position, and microclimate design, to direct air through a building without the assistance of fans or pumps. Passive ventilation has received widespread
  • Customization to Suppress EMI in DC Motors
    A variety of active and passive approaches can be adopted to reduce EMI in systems that rely on precision. motion control. For applications ranging from medical diagnostic to office automation equipment, the need to. suppress conducted and radiated noise is critical, especially in light

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