A device for detecting minute currents on laser seekers
By designing a detection device including a current-to-voltage trans-resistance amplifier circuit, a gain control amplifier circuit, a digital-to-analog conversion circuit and a power supply circuit, the problem of signal saturation of the laser seeker when processing the laser pulse signal is solved, and a higher detection accuracy and dynamic adjustment range are achieved, thereby improving the reliability of the system.
CN111077361BActive Publication Date: 2025-03-21XIAN SHENTONG INTELLIGENT CONTROL TECH CO LTD
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Patent Information
- Application Number
- CN202010038973.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- Filing Date
- 2020-01-14
- Publication Date
- 2025-03-21
- Estimated Expiration
- 2040-01-14
AI Technical Summary
Technical Problem
The laser seeker is prone to signal saturation when processing diffusely reflected laser pulse signals, resulting in a decrease in the accuracy and reliability of guidance information.
Method used
A detection device including a current to voltage transimpedance amplifier circuit, a gain control amplifier circuit, a digital-to-analog conversion circuit and a power supply circuit is designed to avoid signal saturation by dynamically adjusting the gain size of the gain control amplifier circuit.
Benefits of technology
It effectively avoids signal saturation, improves the detection accuracy and dynamic adjustment range of the laser seeker for tiny currents, so that the laser seeker can track the target more quickly and accurately, and improves the reliability of the system.
✦ Generated by Eureka AI based on patent content.
Abstract
A detection device for tiny current on a laser seeker includes a current-to-voltage transimpedance amplifier circuit, a gain control amplifier circuit, a digital-to-analog conversion circuit, and a power supply circuit; the current-to-voltage transimpedance amplifier circuit is used to convert the weak current signal generated by the diffusely reflected laser pulse signal into a voltage signal; the gain control amplifier circuit is used to further amplify the voltage signal within an optional range; the digital-to-analog conversion circuit is used to dynamically adjust the gain of the gain control amplifier circuit; the digital-to-analog conversion circuit outputs an adjustment analog quantity and sends it to the gain control amplifier circuit, and the gain control amplifier circuit receives the adjustment analog quantity output by the digital-to-analog conversion circuit and dynamically adjusts the amplification factor of the output signal. The present invention can avoid saturation when the laser pulse signal enters the analog-to-digital converter, so that the laser seeker can track the target more quickly and accurately.
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