Application Case | NY2300 Online Fruit Acidity & Sugar Content Analyzer

2025-08-29

Optosky’s near-infrared (NIR) spectroscopy analyzer series includes handheld, laboratory, and on-site testing equipment, leveraging the advantages of NIR technology in rapid, non-destructive, and accurate detection. These instruments are widely used in smart agriculture, water quality monitoring, food safety, public security, and industrial inspection. In this application case, we focus on the NY2300 Online Fruit Acidity & Sugar Content Analyzer and demonstrate its efficient performance in NIR-based sugar content detection of fruits.

01 Application Overview

User: Various fruit industry clients

Application: Measuring fruit sugar content

In the modern fruit industry, consumers’ demand for taste and quality continues to increase. How to accurately and quickly determine the internal quality of fruits during post-harvest handling and sales has become a key challenge for orchards, sorting plants, and distributors. Traditional sugar content testing methods require sample destruction, are time-consuming and labor-intensive, and are unsuitable for batch detection. This not only increases labor and management costs but also limits sorting efficiency.

NY2300 Online Fruit Acidity & Sugar Content Analyzer employs NIR spectroscopy to achieve non-destructive testing of internal fruit quality. The device uses near-infrared light to irradiate fruits and, based on the absorption characteristics of different components at various wavelengths combined with chemometric analysis models, accurately calculates key indicators such as sugar content and acidity. Composed of a sampling module and a testing host, it can be adapted to various sizes of spherical fruits, with a applicable fruit diameter range of 50mm–110mm. It supports customized modeling for fruits such as oranges, Murcott, lemons, grapefruits, apples, and persimmons.

02 Case Demonstration

Figure 1: NY2300 Measuring Fruit Acidity and Sugar Content

Figure 2: In-Line Measurement

Figure 3: Infrared Spectrum of Sample Collection

Figure 4: Sugar Content Measurement Data of Oranges

03 Product Introduction

Detection Targets: Apples, pears, oranges, peaches, mangoes, kiwis, etc.
Detection Parameters: Acidity, sugar content, moldy core
Advantages:
- Modular design, easy installation, seamlessly integrates with fruit sorting systems
- NIR spectroscopy technology ensures high sampling coverage and detection accuracy
- Fast detection speed: capable of testing >10 fruits per second
- Online non-destructive testing, pollution-free

In practical applications, the NY2300 can be flexibly customized according to production line needs. It is easy to install with no complex requirements. The device supports data output via Ethernet or serial port to host computers or PLCs, enabling rapid transmission and precise measurement positioning with hardware trigger functionality. Algorithms run on an embedded system, eliminating the need for an additional PC and significantly reducing costs.

Leveraging Optosky’s self-developed algorithms, the NY2300 collects NIR spectra of fruits and builds partial least squares (PLS) models to control sugar content detection error within ±1% (model-dependent), achieving accuracy comparable to professional graders. For different fruits, users can easily perform personalized modeling to ensure optimal detection performance. Test results are displayed in real-time on a digital screen, and the supporting professional modeling software supports multi-fruit model management for efficient and user-friendly operation.

Application Case | IR2300 Near-Infrared Grain Analyzer Enhances Efficiency in Grain Collection and Storage

Solution | Comprehensive Water Quality Monitoring Solution for the Petroleum and Petrochemical Industry