Poisson's ratio measurement

Introducing a case study of measuring Poisson's ratio using a tensile testing machine and strain gauges!

We would like to introduce the Poisson's ratio measurement conducted by our company. Poisson's ratio is the ratio of longitudinal strain to lateral strain that occurs when a load is applied to an object, and it is necessary for strength calculations of materials. We can accommodate Poisson's ratio measurements and strength measurements through tensile testing. Please feel free to consult with us. 【Measurement Examples】 ■ Measurements using a tensile testing machine ■ Strain measurement results and Poisson's ratio calculation results *For more details, please refer to the PDF materials or feel free to contact us.

• Other measuring instruments

Clear presentation of analysis results using polyamide imide materials and IR devices, along with data analysis!

This document presents a case study that elucidates the causes of discoloration in super engineering plastic polyamide-imide (PAI) films used in coatings, composite film materials, and various molded products through instrumental analysis and reaction mechanisms. It includes analysis results from infrared (IR) devices, data analysis, and reaction mechanisms, starting with the material polyamide-imide. While the storage stability of raw materials is essential in product manufacturing, environmental conditions during the processing can sometimes induce defects. We encourage you to read on. [Contents] ■ About the material polyamide-imide ■ Analysis results from IR devices ■ Data analysis and reaction mechanisms *For more details, please refer to the PDF document or feel free to contact us.

• others

Useful for quality control over the years! Ultra-micro hardness measurement of materials such as metals, polymers, and ceramics.

Our "Ultra-Micro Hardness Measurement for Material Evaluation" allows for the ultra-micro hardness measurement of materials such as metals, polymers, plastics, and ceramics. Additionally, since hardness can be quantified, it is also useful for long-term quality control. The hardness is determined by directly reading the depth of the indentation while applying a load to the indenter. It is also possible to determine characteristic values related to recovery behavior. 【Device Overview】 ■ Test force range: 0.4mN to 1000mN, Accuracy: ±0.02mN ■ Indentation range: 1nm (0.01μm) to 700μm *For more details, please refer to the PDF document or feel free to contact us.

• others

Leave it to us for everything from chemical analysis and physical testing to reliability testing! Introduction to our measurement and evaluation services.

Plastic extrusion/injection molding processing is set according to the heat resistance temperature (melting point Tm) of the raw materials; however, due to the degradation and alteration of the materials, there are cases where molding becomes difficult at the specified setting temperature. By checking the melt flow rate (MFR) of plastic raw materials in pellet or powder form, it is possible to determine whether there are any changes compared to conventional products. We present a case where untreated (no load), temperature and humidity load (constant temperature and humidity test), and UV-irradiated PP (polypropylene) were injected and evaluated at a temperature of 230°C and a load of 5kg, so please take a look at the PDF download. [Evaluation Case] ■PP: Polypropylene ■8585: 85°C 85% × 336 hours ■UV: UV irradiation 253.7nm × 336 hours ■Injection time: 10 minutes (converted from 3 minutes) *For more details, please refer to the PDF document or feel free to contact us.

• Measurement and Inspection
• Other services and technologies

Essential materials alongside metals and inorganic materials! Introducing examples of analysis and evaluation services for organic materials.

Organic materials such as solvents, additives, pharmaceuticals, and plastics are essential materials alongside metals and inorganic materials. They have a wide variety of types due to the combination of light elements, and their specificity is manifested through structure, intermolecular forces, and electron behavior. However, it seems that chemical instrumentation analysis and evaluation are necessary for a fundamental understanding of their properties. This document presents case studies of analysis and evaluation services for organic materials. [Contents] ■ FT-IR Analysis ■ GC-MS Analysis ■ Molecular Weight Distribution Evaluation by GPC (SEC) *For more details, please refer to the PDF document or feel free to contact us.

• Other analytical equipment
• Measurement and Analysis Equipment

The analysis device also supports the analysis and evaluation of polymers! Information on the configuration and principles of high-temperature SEC equipment is included!

The molecular weight of resins such as plastics is not a single value but is composed of multiple molecular weights. By understanding this molecular weight and its distribution, it leads to a better understanding of the mechanisms and theories related to the properties and degradation of resins. In this document, we will introduce a case study where we measured polypropylene resin (PP) samples with and without ultraviolet (UV) irradiation using a high-temperature GPC device suitable for measuring polyolefin-based materials that are difficult to dissolve in solvents at room temperature, and conducted data analysis. We encourage you to read it. 【Contents】 ■ Configuration and principles of high-temperature SEC ■ Analysis case: Molecular weight measurement of PP subjected to UV irradiation ■ Application examples ■ Specifications and considerations for high-temperature SEC *For more details, please refer to the PDF document or feel free to contact us.

• Measurement and Inspection

Japan is one of the top 10 countries in the world with frequent earthquakes. The 2020 White Paper on Land, Infrastructure, Transport and Tourism has also reported an increase in the probability of major earthquakes occurring. Regarding the Nankai Trough earthquake, the probability of an earthquake with a magnitude of 8 to 9 occurring within the next 30 years is estimated to be 70 to 80%. At Hotron, we recommend the introduction of seismic devices for earthquake countermeasures in buildings and equipment. The seismic device 'HK-2' is a product that automatically performs various controls that have been pre-set when it detects strong shaking equivalent to a seismic intensity of 5 lower or higher. For example, it can automatically execute actions such as: "Open automatic doors and gates to secure evacuation routes and access for emergency vehicles" "Transmit signals to the control room and stop facility equipment" "Unlock the keys to locked lockers" "Automatically play voice guidance" For more details, please download the materials or contact us.

The "HA-T Series" is an energy-saving automatic door sensor that opens only for those who want to enter, whether on a busy street or in a narrow passageway. The automatic door opens simply by bringing your hand close, addressing hygiene concerns even in facilities used by a large number of people. Depending on the application and installation location, you can choose between "Non-vision Mount Type/HA-T401" and "Non-vision Built-in Type/HA-T520." 【Recommended for such places!】 ☑ Entrance facing a busy passageway ☑ Presence of counters or signs near the door ☑ Buildings facing narrow passageways ☑ Buildings that prioritize aesthetics ☑ Hospitals and facilities that consider hygiene ☑ Large facilities with many doors 【Features】 ● Adaptable to various door types with four detection spot settings ● Reduces unnecessary opening and closing to minimize power consumption, contributing to energy-saving effects ● Equipped with a light touch function, allowing the door to open and close simply by waving your hand, ensuring hygiene ● Can also be used as a wide detection range non-vision infrared sensor ◎ For more details, please download the materials or contact us.

Seven Corporation has begun research and development related to rust prevention, aiming to expand the functionality of the natural multifunctional aqueous solution "SEA'S 7." This research is being promoted as a collaborative study with the Industrial Technology Research Institute. In recent years, the manufacturing industry has been seeking technologies that balance environmental impact reduction and improved work safety, making rust prevention measures after cleaning a critical issue. This research includes corrosion evaluation using metal test pieces, measurement of weight changes, and durability tests in a circulating water environment, advancing the understanding of rust prevention mechanisms and performance evaluation. In the future, we aim to develop a next-generation SEA'S 7 that incorporates rust prevention functionality in addition to cleaning, disinfection, and deodorization, contributing to the efficiency of manufacturing processes and the reduction of environmental impact.

We are pleased to announce the launch of the "Vertical Aluminum Step Type F." The "Vertical Aluminum Step Type F" is a new type of aluminum ladder specifically designed for excavation sites, based on the existing "Vertical Aluminum Step." The vertical aluminum step is lightweight due to its aluminum construction, making it easy to transport and set up. Additionally, its modular design allows for flexible height combinations (with connecting parts of 0.7m, 1.0m, and 2.0m). The newly launched Type F retains the features of the previous model while providing even greater convenience. <Features of Type F> ■ The hook adjustment range of the fixed part has been expanded. It can be attached to structures ranging from 20mm to 200mm. ■ The length of the stand pipe can be adjusted. The stand pipe can be stored, making transportation and storage easier. <Release Date> January 5, 2026 <Specifications> - Standard set for Type F: 2.4m *Individual sales of the hanging fixed part and connecting parts are available. *Sales of the previous model (stand pipe fixed type) will also continue.

This time, we will explain the differences in roles between the "accounting system" and the "document management system," which are surprisingly not well known, as well as points that are often overlooked in legal compliance. ■ The difference between accounting systems and document management systems is their "scope of coverage." - Accounting System = Management of "money (numbers)" - Document Management System = Management of "evidence (documents)" ■ Documents that are often overlooked in accounting systems The accounting system primarily focuses on "accounting processes." - "Estimates" where no money movement occurs - "Delivery notes" and "purchase orders," which are intermediate points in transactions ⇒ There are cases where these are not saved or managed in the accounting system. This could be considered a deficiency under the Electronic Bookkeeping Act. ■ Supplementing the missing parts with an "independent system" While there are high-function ERP (Enterprise Resource Planning) systems that can manage everything from estimates to invoicing seamlessly, the reality is that the cost can be a significant barrier to implementation. Therefore, there is also the option of managing documents with an independent document management system like paperlogic. Paperlogic is currently offering a free trial. Please feel free to contact us.