Measuring device

• US 4,418,392 A
• Filed: 06/23/1981
• Issued: 11/29/1983
• Est. Priority Date: 06/26/1980
• Status: Expired due to Term

• Current Assignee: Tokyo Shibaura Denki Kabushiki Kaisha (Toshiba Corporation)
• Original Assignee: Tokyo Shibaura Denki Kabushiki Kaisha (Toshiba Corporation)
• Inventors: Hata, Yoogo
• Primary Examiner(s): Chin, Gary
• Application Number:
  US06/276,527
• Time in Patent Office: 889 Days
• Field of Search: 364/571, 364/573, 364/557, 73/1 F
• US Class Current: 702/91
• CPC Class Codes: G01D 18/008 with calibration coefficients stored in memory
• CPC Class Codes: G01D 3/022 having an ideal characteristic, map or correction data stored in a digital memory
• CPC Class Codes: G01K 7/25 for modifying the output characteristic, e.g. linearising

Abstract

A measuring device provided with a memory unit for storing correction data, wherein the memory unit is controlled by a control circuit; the correction data is transmitted to a main memory through an input-output device; a transducer measures living body data, and converts the measured data into an electric signal; a digital signal converted from the electric signal by an analog-digital converter is delivered to a central processing unit as measured data; the transducer, memory unit and control circuit jointly constitute a measurement-correcting module, which is detachably attached to the input-output device; the central processing unit corrects the measured data by the correction data stored in the main memory, and converts the corrected measured data into a display signal; and a display device indicates the measured data in accordance with the display signal received.

Claims

1. A measuring apparatus comprising:

a. measuring means including a plurality of transducers for measuring a plurality of different data and converting the measured data into analog electrical signals;

b. analog-digital converting means connected to the measuring means to convert analog electric signals from the measuring means into digital signals;

c. correction means connected to the analog-digital converting means for storing a plurality of different correction data for the plurality of measured data, for correcting each of the measured data using the corresponding correction data, and for further correcting a first of the corrected measured data using a second of the corrected measured data, said first corrected measured data being a function of at least two variable factors and said second corrected measured data being a function of at least one variable factor and being one of said at least two variable factors of said first corrected measured data; and

d. display means connected to the correcting means for displaying corrected measured data.

2. The measuring apparatus according to claim 1, wherein the correction means comprises:

a. a plurality of correcting modules respectively housing said plurality of transducers;

b. a plurality of memory units respectively included in the corresponding correcting modules for storing correction data corresponding to the respective transducers;

c. a plurality of control circuits respectively included in the corresponding correcting modules and connected to the corresponding memory units to control the reading of the correction data;

d. an input-output device to which the correcting modules are detachably fitted, and which is connected to the memory units, control circuits and converting means, thereby controlling the transmission and reception of data;

e. a main memory connected to the input-output device, which stores the standard properties of the respective transducers and correction data delivered from the memory units; and

f. a central processing unit connected to the input-output device, which compares each of the measured data with the standard property of the corresponding measuring means, selects a prescribed correction data in accordance with the result of said comparison, and corrects the measured data by said selected prescribed correction data.