GB/T 43597-2023
Test method for parameters of thermoelectric terahertz detector (English Version)

Standard No.

GB/T 43597-2023

Language

Chinese, Available in English version

Release Date

2023

Published By

General Administration of Quality Supervision, Inspection and Quarantine of the People‘s Republic of China

Latest

GB/T 43597-2023

Introduction

GB/T 43597-2023 Standard Overview

GB/T 43597-2023 "Parameter Test Method for Pyroelectric Terahertz Detectors" is a national standard of the People's Republic of China, applicable to the parameter test of pyroelectric terahertz detectors. This standard specifies the test principle, test conditions, instrumentation and sample requirements, and describes in detail the test steps and data processing methods for core indicators such as photosensitive surface area, responsivity, and noise equivalent power.

Comparison of standard frameworks

Standard dimensions	GB/T 43597-2023	Reference standards	Comparative analysis
Test scope	Thermoelectric terahertz detectors (including thermopiles, pyroelectrics and microbolometers)	GB/T 13584-2011 Infrared detector parameter test method	Extended to terahertz band, new test requirements for pyroelectrics and microbolometers
Core indicators	Responsivity, noise equivalent power, detection rate, response time	GB/T 13584-2011 infrared detector parameters	New definitions of noise equivalent power and detection rate, applicable to terahertz frequency band
Test equipment	Terahertz source, beam splitter, variable attenuator, spectrum analyzer, etc.	General photoelectric measurement equipment	New requirements for terahertz-specific equipment to ensure wavelength consistency

Technology evolution analysis

The technical development of thermoelectric terahertz detectors has gone through three main stages:

• First generation: discrete component detectors based on the thermopile principle (1960s-1980s)
• Second generation: integrated pyroelectric detectors (early 1990s)
• Third Generation: Microbolometers and Quantum Well Detectors (2000s to Present)

The formulation of GB/T 43597-2023 standard reflects the latest research achievements in the field of terahertz detection technology in my country, especially the breakthroughs in high sensitivity and broadband test methods.

Implementation Suggestions

Case Study: Responsivity Test

A laboratory encountered the following problems when testing the responsivity of a thermoelectric terahertz detector:

• Problem:The signal voltage correction value is unstable, resulting in a large responsivity deviation.
• Solution:
  1. Check the output stability of the terahertz source to ensure that its fluctuation range is within ±2%.
  2. Use a chopper to adjust the radiation intensity and reduce external interference.
  3. Increase the number of measurements (n≥3) and take the average value as the final result.

GB/T 43597-2023 history

• 2023 GB/T 43597-2023 Test method for parameters of thermoelectric terahertz detector

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