Analog computer quantizer without an integrator memory
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an analog computer usually contain one or more integrators which serve as the memory. These circuits are often too inaccurate because of the integrator drift. Furthermore, the response time to step signals or rapidly changing signals is long. Fast response requires a small value of the feedback capacitor of the integrator, while minimal drift requires a large value of the feedback capacitor. This contribution describes an analog computer scheme which accomplishes quantization without the use of an integrator. Because of this, there is no problem of drift. The response time to small or large signals is nearly constant and amounts to approximately two milliseconds. (This time depends on the comparator switches used). The components required for the quantizer are summing amplifiers, potentiometers, and comparators. The number of computing elements is limited because a bootstrapping technique is used. DESCRIPTION