1 / 6

ULTRA LOW CURRENT MEASUREMENT SYSTEM

ULTRA LOW CURRENT MEASUREMENT SYSTEM. A full diagram of a mass spectrometer. Ionisation. Block diagram. SOURCE OF CURRENT ( pA -µA). I-V CONVERTER (LMC6001). ADC (CS5531). MICRO CONTROLLER (P89C51). COMPUTER. ADC Software.

trixie
Download Presentation

ULTRA LOW CURRENT MEASUREMENT SYSTEM

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. ULTRA LOW CURRENT MEASUREMENT SYSTEM

  2. A full diagram of a mass spectrometer

  3. Ionisation

  4. Block diagram SOURCE OF • CURRENT • (pA-µA) • I-V CONVERTER (LMC6001) • ADC • (CS5531) MICRO CONTROLLER (P89C51) COMPUTER

  5. ADC Software CS The CS pin is tied low, the port can function as a three wire interface. SDI Serial Data In, The data signal used to transfer data to the converters. SDO Serial Data Out It is used to transfer output data from the converters. The SDO output will be held at high impedance any time CS is a logic 1. SCLK Serial Clock It is used to control the shifting of data to or from the ADC’s serial port. The CS pin must be held low (logic 0) before SCLK transitions can can be recognized by the port logic.

  6. Timing Diagram

More Related