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Instrument Calibration

Instrument Calibration

Instrument calibration is essential for ensuring that instruments produce accurate and consistent results. It is vital in manufacturing, healthcare, testing laboratories, and scientific research. Calibration processes are specific to each instrument and help enhance data accuracy. Each instrument has a unique calibration process tailored to its design and function to improve data accuracy.
Analytical Balance Calibration
An analytical balance measures mass and requires regular calibration to...

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Related Experiment Video

Updated: Jun 18, 2026

Tuning a Parallel Segmented Flow Column and Enabling Multiplexed Detection

Tuning a Parallel Segmented Flow Column and Enabling Multiplexed Detection

Published on: December 15, 2015

Calibration system for pulse spectrophotometry using a double-layer pulsation flow-cell.

M Oura¹, N Kobayashi, S Yamamori

¹Nihon Kohden Corporation, 1-31-4 Nishi-Ochiai, Shinjuku-ku, Tokyo, Japan. Mitsuhiro_Oura@mb1.nkc.co.jp

Annual International Conference of the IEEE Engineering in Medicine and Biology Society. IEEE Engineering in Medicine and Biology Society. Annual International Conference

|December 8, 2009

Summary

This summary is machine-generated.

A new in vitro calibration system for pulse photometers uses a double-layer flow-cell to safely and accurately calibrate noninvasive hemoglobin measurement devices. This method ensures reliable performance for carboxyhemoglobin and methemoglobin monitoring.

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Published on: June 12, 2016

Area of Science:

Biomedical Engineering
Analytical Chemistry
Medical Device Technology

Background:

Noninvasive devices for measuring total hemoglobin and its derivatives like carboxyhemoglobin (COHb) and methemoglobin (MetHb) require accurate calibration.
Current calibration methods using humans or animals pose risks.
Standardized calibration is crucial for clinical practice and reliable pulse oximetry.

Purpose of the Study:

To develop a novel, safe, and accurate in vitro calibration system for pulse photometers.
To enable precise calibration of noninvasive hemoglobin measurement devices without risks to living subjects.
To establish a standardized method for evaluating the performance of pulse photometry.

Main Methods:

Development of a unique double-layer pulsation flow-cell incorporating both venous and arterial blood flow.
Measurement of the in vitro pulsatile optical density ratio (Phivt) using the developed system.
Comparison of in vitro measurements with in vivo data to validate the system's accuracy.

Main Results:

The proposed in vitro calibration system accurately simulates an in vivo environment.
The measured in vitro pulsatile optical density ratio (Phivt) showed strong agreement with the in vivo pulsatile optical density ratio (Phivi).
The system provides a safe alternative for calibrating pulse photometers.

Conclusions:

The novel in vitro calibration system offers a safe and accurate method for standardizing pulse photometers.
This system enhances the reliability and performance of noninvasive devices for measuring hemoglobin and its derivatives.
The developed flow-cell technology is a significant advancement in medical device calibration.