Claims
- 1. A method for rapid calibration of a microprocessor controlled digital multimeter having a set of analog components which can produce measurement errors and a subset of said components which are substantially more precise and removable comprising the following steps:
- removing said subset of components;
- replacing said subset with a previously calibrated equivalent subset; and
- using said microprocessor and said equivalent subset to arithmetically remove the measurement errors caused by said set of analog components, wherein said arithmetical removal step is based on the precision of said previously calibrated equivalent subset.
CROSS-REFERENCE TO RELATED APPLICATIONS
This is a continuation-in-part of application Ser. No. 724,005, filed Sept. 16, 1976, U.S. Pat. No. 4,200,933, which is a continuation in part of application Ser. No. 710,218 filed July 30, 1976, abandoned, in the names of the present inventors and assigned to the present assignee.
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|
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|
3777261 |
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|
4038532 |
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4127811 |
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Non-Patent Literature Citations (4)
Entry |
Julie, "A High Accuracy Digital Instrument Design for DC Measurements"-IEEE Trans. on Instrumentation and Measurement, vol. IM-21, No. 4, Nov. 72, pp. 323-328. |
Vallo et al., "High Power Laboratory Testing with a Real-Time Computer", IEEE Trans. on Power Apparatus and Systems, vol. PAS-95, No. 3, pp. 982-987, May-Jun. 1976. |
Kaufmann, "Analogue Voltages Monitored by Microprocessor", Electronic Engineering, vol. 48, No. 580, pp. 23, 25, 27, Jun. 1976. |
Inoue et al., "An Automated Precision Power Measurement and Power Meter Calibration System in the Milometer-Wave Region", 1976 Conf. on Precision Measuring, etc., Boulder, Colo., (Jun. 28-Jul. 1, 1976). |
Continuation in Parts (2)
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Number |
Date |
Country |
Parent |
724005 |
Sep 1976 |
|
Parent |
710218 |
Jul 1976 |
|