H - Electricity – 03 – M
Patent
H - Electricity
03
M
73/164, 354/21
H03M 1/22 (2006.01) G08C 19/02 (2006.01)
Patent
CA 1324006
ABSTRACT OF THE DISCLOSURE A digital transmitter with an analog sensor uses an integrating analog-to-digital converter to digitize the analog signal from the sensor . The A/D converter produces a digital output which is a continuous, non-rezeroed integrated average of the analog signal, so that the integrated average of the digital output over time does not contain inherent quantization errors. A microcomputer system digitally filters the signal from the A/D converter , and then uses the digitally filtered signal to produce the transmitter output signal. By varying the response time of the digital filter , the response time and resolution of the transmitter can be varied.
580244
Marks & Clerk
Rosemount Inc.
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