Large-dynamic range high-precision sensor port simulation signal generation device
A sensor interface and analog signal technology, applied in the field of large dynamic high-precision sensor interface analog signal generation devices, can solve the problems affecting the reliability of evaluation results, poor consistency of evaluation results, etc. The effect of high amplitude output precision and low distortion of high voltage signal output
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[0018] The present invention will be further described below with reference to the accompanying drawings and embodiments.
[0019] like figure 1 As shown, the present invention is a large dynamic high-precision sensor interface analog signal generating device, which includes two parts: software and hardware.
[0020] The hardware part includes a USB communication interface 1, a programmable logic device 2, a high-precision D / A conversion circuit 3, a signal conditioning filter circuit 4, a high-voltage output circuit 5, an output interface 6, a voltage conversion circuit 7, and a high-precision A / D circuit. Conversion circuit 8 and power distribution circuit 9 . The USB communication interface 1 receives commands and information from the outside. Under the control of the programmable logic device 2, the signals are transformed through multiple circuits for many times, and finally output from the output interface 6 to test and evaluate the sensor test system.
[0021] Among t...
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