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HEDS-9740 bảng dữ liệu(PDF) 2 Page - Agilent(Hewlett-Packard) |
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HEDS-9740 bảng dữ liệu(HTML) 2 Page - Agilent(Hewlett-Packard) |
2 / 6 page 2 Absolute Maximum Ratings Parameter Symbol Min. Max. Units Notes Storage Temperature TS –40 85 °C Operating Temperature TA –40 85 °C Supply Voltage VCC –0.5 7 V Output Voltage VO –0.5 VCC V Output Current per Channel IO –1.0 5 mA Soldering Temperature 260 °Ct ≤ 5 sec. Definitions Count (N) = the number of bar and window pairs or Counts Per Revolution (CPR) of the codewheel, or the number of Lines Per Inch (LPI) of the codestrip. 1 Shaft Rotation = 360 mechanical degrees = N cycles 1 Cycle (c) = 360 electrical degrees ( °e) = 1 bar and window pair Pulse Width (P): The number of electrical degrees that an output is high during one cycle. This value is nominally 180 °e or 1/2 cycle. Pulse Width Error ( ∆P): The deviation, in electrical degrees, of the pulse width from its ideal value of 180 °e. State Width (S): The number of electrical degrees between a transition in the output of channel A and the neighboring transition in the output of channel B. There are four states per cycle, each nominally 90 °e. State Width Error ( ∆S): The deviation, in electrical degrees, of each state width from its ideal value of 90 °e. Phase ( φ): The number of electrical degrees between the center of the high state of channel A and the center of the high state of channel B. This value is nominally 90 °e for quadrature output. Phase Error ( ∆φ): The deviation of the phase from its ideal value of 90 °e. Direction of Rotation: When the codewheel rotates counter- clockwise, as viewed looking down on the module (so the marking is visible), channel A will lead channel B. If the codewheel rotates in the opposite direction, channel B will lead channel A. Optical Radius (ROP): The distance from the codewheel’s center of rotation to the optical center (OC) of the encoder module. Angular Misalignment Error (EA): Angular misalignment of the sensor in relation to the tangential direction. This applies for both rotary and linear motion. Mounting Position (RM): Distance from motor shaft center of rotation to center of alignment tab receiving hole. |
Số phần tương tự - HEDS-9740 |
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Mô tả tương tự - HEDS-9740 |
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