Connector for measuring apparatus

• US 5,532,581 A
• Filed: 05/10/1994
• Issued: 07/02/1996
• Est. Priority Date: 05/13/1993
• Status: Expired due to Fees

• Current Assignee: OTAX Company Limited
• Original Assignee: OTAX Company Limited
• Inventors: Yoshida, Toshiyuki, Aoki, Kazuo, Kainuma, Mitsuru, Ohkura, Tadahiro
• Primary Examiner(s): Wieder, Kenneth A.
• Assistant Examiner(s): KHOSRAVI, KOURO
• Application Number:
  US08/240,422
• Time in Patent Office: 784 Days
• Field of Search: 324/115, 324/157, 324/126, 364/571.07, 364/571.04
• US Class Current: 324/115
• CPC Class Codes: G01D 3/02 with provision for altering or correcting the law of variation
• CPC Class Codes: G01N 33/4925 measuring blood gas content, e.g. O2, CO2 , HCO3

Abstract

In a connector apparatus employed in a measuring system, a sensor is connected by releasable connector to a measuring unit to form a standard sensor connection eliminating any requirement for calibration. The connector apparatus includes a measuring circuit containing a setting line scanning program reading a plurality of setting switches in the connector set in ON/OFF states indicating the type of sensor and correction data employed by the scanning program for measurements made by the sensor.

Claims

1. A connector apparatus for use in a measuring apparatus comprising:

a measuring unit containing a stored setting line scanning program,

a connector containing a plurality of setting switches set in ON/OFF states indicating one of a plurality of measurements and which are scanned by the setting line scanning program,

a sensor connected to the connector for performing the indicated measurement,

jacks in the measuring unit for being releasably engaged with the connector,

a sensor pulse transmitting circuit in the measuring unit for transmitting a sensor pulse via the jacks and the connector to the sensor,

a background noise eliminating circuit in the measuring unit for eliminating background noise in a signal input from the sensor via the jacks,

a sensing data shaping circuit in the measuring unit for shaping sensing data output from the background noise eliminating circuit,

a correction table in the measuring unit used in accordance with the setting line scanning program,

a correction calculation program in the measuring unit for correcting data read out from the sensor in accordance with the setting line scanning program, and

a corrected data outputting circuit in the measuring unit for outputting the corrected data which has been corrected in accordance with the correction calculation program.

2. A connector apparatus as claimed in claim 1 wherein the correction calculation program corrects data using correction data from the correction table selected in correspondence with the setting of the setting switches.