Title: Non-contact reading sensor of mechanical character wheel counter and its design method
Application Number: 200610046364 Application Date: 2006.04.24
Publication Number: 1835002 Publication Date: 2006.09.20
Approval Pub. Date: Granted Pub. Date:
International Classifi-cation: G06M1/272
Applicant(s) Name: Zhang Ange Address: 110179
Inventor(s) Name:
Attorney & Agent: li yutong
Abstract:
     The invention provides a mechanical wheel counter noncontact reading sensor and the design method thereof, using the light reflection principle to convert optical signal into electric signal code data so as to implement a function of noncontact mode reading of counter wheel indicated figures, where photoelectric triode, photoelectric diode and signal processing circuit are arranged on a circuit board on the upper part of a bracket, the lower part of the bracket is made with optical fiber fixing holes, the optical fiber is connected between the photoelectric triode, photoelectric diode and optical fiber fixing holes as a light path, the lower part of the bracket is provided with a wheel pasted with light reflecting strip to read code data from the photoelectric triode, and a MCU looks up a wheel figure-code data contrast table to convert the code data into counter wheel indicated figures, which are outputted through serial socket. The invention accurately calculates included angles between the optical fiber fixing holes and geometric parameters of the light reflecting strip and can implement remote data transmission.
Time: 6
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