Texture Analyzer

A mechanical texture analyzer quantifies physical firmness, elasticity, and adhesion by recording real-time force, distance, and time metrics during specimen deformation. 

The QualiTEXA™ Series operates as a high-precision benchtop testing machine, driving an arm vertically across configurable rates from 1 to 500 mm/min while an integrated load cell tracks physical pushback with 0.5% full-scale resolution.

   [ Digital Controller & High-Speed Data Logger (100-400 Hz) ]
                                  │
    ┌─────────────────────────────┴─────────────────────────────┐
    │                                                           │
┌───┴─────────────────────────┐                     ┌───────────┴───────────┐
│ High-Precision Load Cell    │                     │ Controlled Drive Arm  │
│ (0.5% F.S. Resolution)      │                     │ (Speed: 1-500 mm/min) │
└───────────┬─────────────────┘                     └───────────┬───────────┘
            │                                                   │
            └──────────────────────┬────────────────────────────┘
                                   │
                    [ Swap-In Push/Pull Probe ]
                        (Cylinder, Cone, Blade)
                                   │
                       [ Specimen / Sample ]
                                   │
                   [ Base Plate / Testing Stage ]

QualiTEXA™ Series Model Variants & Specifications

Key System Architecture Features

• High-Resolution Force Cell: Catches minute load variations with 0.5% F.S. precision, picking up sub-gram shifts up to 500 N forces.
• Controlled Drive Arm: Slides vertically across adjustable travel limits (110 mm stroke on QualiTEXA™-2I; 250 mm stroke on QualiTEXA™-1I) at rates from 1 to 500 mm/min.
• Swap-In Probes & Attachments: Compression platens, cylinders, sharp blades, tapered cones, spherical geometries, and puncture needles.
• Data Extraction Software: Captures synchronized force, time, and displacement data continuously to build precise stress-strain behavior graphs.

Supported Testing Modes & Protocols

The QualiTEXA™ Series supports various standardized physical testing routines:

Texture Profile Analysis (TPA) Metrics

TPA is the industry-standard "two-bite" test protocol. The QualiTEXA™ Series presses a sample down twice in a row, generating a full profile of mechanical behavior.

       Force
         ^        Bite 1 (First Smash)         Bite 2 (Second Smash)
         |            ┌───┐                        ┌───┐
Hardness |---------->/     \                      /     \
(Peak 1) |          / Area 1\                    / Area 2\
         |         /         \                  /         \
  -------+--------+-----------+----------------+-----------+--------> Time
         |         \ Area 3  /
         |          \-------/ 
         v          Adhesiveness (Stickiness)

Derived TPA Metrics

• Hardness: The biggest peak force recorded during the first compression stroke (F_max1).
• Fracturability: That sharp little drop in force right before the main peak, signaling initial structural failure.
• Cohesiveness: The area under the second compression curve divided by the first (Area₂ / Area₁), showing how well the material holds its internal structure together.
• Springiness: The height or distance recovered by the specimen between stroke one and stroke two (D₂ / D₁).
• Adhesiveness: The negative work area recorded as the probe pulls away (Area₃), measuring stickiness.
• Gumminess: Hardness multiplied by Cohesiveness, indicating the energy required to disintegrate semi-solid specimens.
• Chewiness: Hardness times Cohesiveness times Springiness, calculating the total energy required to masticate solid materials.

Industrial Applications Across the QualiTEXA™ Series

┌──────────────────────────────────────────────────────────────────────────────┐
│                    QualiTEXA™ Series Application Domains                      │
├──────────────────┬───────────────────┬───────────────────┬───────────────────┤
│ Food & Agriculture│ Pharmaceuticals   │ Cosmetics         │ Packaging         │
│ • Gel Strength   │ • Microneedles    │ • Tube Squeezing  │ • Film Puncture   │
│ • Meat Tenderness│ • Pill Breaking   │ • Cream Spreading │ • Seal Integrity  │
│ • Bread Softness │ • Patch Stickiness│ • Lipstick Snap   │ • Adhesive Peel   │
└──────────────────┴───────────────────┴───────────────────┴───────────────────┘

• Food Science & Confectionery: Gel Strength & Bloom Testing (ISO 9665 / AOAC 23.007), Meat Tenderness (Warner-Bratzler shear), and Bakery Freshness (AACC 74-09.01 crumb firmness).
• Pharma & Medical Devices: Tablet Breaking Resistance, Skin Patch Stickiness, and Microneedle Insertion Force.
• Cosmetics & Personal Care: Cream Spreadability, lotion consistency, and lipstick snap resistance.
• Packaging & Adhesives: Film Puncture Resistance (ASTM F1306), Loop Tack, and Peel Adhesion Strength (ISO 8510 / ASTM D3330).

Maintaining High Test Reproducibility

To maintain identical test numbers across different lab runs, keep these setup factors locked down:

1. Probe Geometry Selection: Cylinders work best for flat compression, cones handle thick pastes, and needles pinpoint localized skin strength.
2. Drive Arm Travel Speed: Viscoelastic materials display higher apparent resistance when compressed quickly, so keep travel speeds (1 to 500 mm/min) identical across runs.
3. Thermal Environment Management: Samples soften at higher temperatures and stiffen when cold. Temperature control plates maintain steady thermal conditions.
4. Specimen Dimensional Consistency: Prepare specimens to exact dimensions with flat, parallel surfaces so the probe contacts the sample evenly.