Topo
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| Brand | Topo |
|---|---|
| Origin | Tianjin, China |
| Manufacturer Type | Original Equipment Manufacturer (OEM) |
| Product Category | Domestic |
| Model | TP760 |
| Spectral Range | 280–2500 nm |
| Slit Bandwidth | UV-Vis: 2.0 / 3.0 / 5.0 nm (selectable) |
| NIR | 5.0–20.0 nm (auto/manual) |
| Wavelength Accuracy | ±0.5 nm (UV/VIS), ±2.0 nm (NIR) |
| Wavelength Repeatability | ≤0.3 nm (UV/VIS), ≤1.0 nm (NIR) |
| Photometric Accuracy | ±0.3% T |
| Baseline Flatness | ±0.005 A (200–2500 nm, after 30-min warm-up) |
| Brand | Topo |
|---|---|
| Model | TPY-2 |
| Origin | Tianjin, China |
| Manufacturer Type | Original Equipment Manufacturer (OEM) |
| Spectral Range | 632.8 nm (He–Ne laser) |
| Thickness Measurement Range | 1–4000 nm |
| Refractive Index Range | 1.0–10.0 |
| Incidence Angle Range | 20°–90° (±0.05° angular resolution) |
| Sample Diameter Compatibility | Ø10–Ø140 mm, max thickness 16 mm |
| Thickness Accuracy | ±0.5 nm (for films 10–100 nm), ±1 nm (full range) |
| Refractive Index Repeatability | ±0.005 |
| Polarizer Azimuth Range | 0°–180° |
| Optical Center Height | 80 mm |
| Dimensions (L×W×H) | 680 × 390 × 310 mm |
| Weight | 26 kg |
| Interface | USB 2.0 |
| Software | Windows-based ellipsometry analysis suite with real-time data acquisition, multi-layer modeling, and export to CSV, TXT, and XML |
| Brand | Topo |
|---|---|
| Model | WCG-1 |
| Origin | Tianjin, China |
| Manufacturer | Topo Instruments Co., Ltd. |
| Input Voltage | 220 V AC, 50 Hz |
| Frequency Range | 10 MHz ± 1 MHz |
| Frequency Display | 4-digit LED |
| Diffraction Orders | ≥3 |
| Measuring Range of Micrometer Eyepiece | 8 mm |
| Measurement Accuracy | 0.01 mm |
| Telescope Objective Focal Length | f = 150 mm |
| Brand | Topo |
|---|---|
| Model | WDS-4 |
| Focal Length | 300 mm |
| Relative Aperture | D/F = 1/7 |
| Stray Light Level | ≤0.3% T |
| Spectral Resolution | Resolves seven polystyrene transmission peaks at 3000 nm |
| Detector Options | TGS pyroelectric detector, PbS photoconductive detector, HgCdTe (MCT) photovoltaic detector |
| Interface | USB |
| Dimensions | 370 × 280 × 200 mm |
| Origin | Tianjin, China |
| Manufacturer Type | Original Equipment Manufacturer (OEM) |
| Brand | Topo |
|---|---|
| Origin | Tianjin, China |
| Manufacturer Type | Original Equipment Manufacturer (OEM) |
| Instrument Architecture | Dual-Beam |
| Detector | Photomultiplier Tube (PMT) |
| Wavelength Range | 190–900 nm |
| Spectral Bandwidth | 0.15 / 0.3 / 0.5 / 1.0 / 2.0 nm (5 selectable) |
| Wavelength Accuracy | ≤ ±0.3 nm |
| Stray Light | ≤ 0.2%T (at 220 nm, NaI solution) |
| Wavelength Repeatability | ≤ 0.1 nm |
| Photometric Accuracy | ±0.3%T (0.0–100.0%T) |
| Scan Modes | Continuous, Overlap, Time-based |
| Measurement Modes | Transmittance (%T), Absorbance (A), Energy (Single-Beam Reference) |
| Brand | Topo |
|---|---|
| Model | WGN-1 |
| Detector Type | Silicon Photodiode |
| Spectral Range | 400–1050 nm |
| Power Range | 2 µW – 200 mW |
| Active Area | 1 cm² |
| Display | 3.5-digit LCD |
| Resolution | 0.001 µW |
| Calibration Wavelength | 632.8 nm |
| Measurement Uncertainty | ±3% ±1 digit |
| Operating Temperature | 0–35 °C |
| Relative Humidity | ≤80% RH (non-condensing) |
| Power Supply | 220 V, 50 Hz, 10 W |
| Compliance | Designed for ISO/IEC 17025 traceable calibration workflows |
| Brand | Topo |
|---|---|
| Model | WGS-1 |
| Origin | Tianjin, China |
| Manufacturer Type | Direct Manufacturer |
| Laser Source | He–Ne, 1.5 mW |
| Optical Baseplate | 500 mm × 350 mm aluminum |
| Experimental Modules | Mach–Zehnder, Sagnac, and Michelson interferometry |
| Educational Application | Undergraduate optics & physics laboratory instruction |
| Compliance | Designed for ISO/IEC 17025-aligned teaching labs |
| Software Integration | Manual alignment only |
| Power Supply | AC 220 V ±10%, 50 Hz |
| Brand | Topo |
|---|---|
| Model | WGX-11 |
| Light Source | 650 nm FP fiber-coupled laser diode |
| Origin | Tianjin, China |
| Manufacturer Type | Original Equipment Manufacturer (OEM) |
| Category | Educational Optical Measurement Instrument for Fiber Optic Sensing Principles |
| Compliance | Designed for academic laboratory use in accordance with standard undergraduate photonics curriculum frameworks (e.g., IEEE/LEOS recommended teaching modules) |
| Brand | Topo |
|---|---|
| Model | WGX-6 |
| Origin | Tianjin, China |
| Manufacturer Type | Direct Manufacturer |
| Product Origin | Domestic (China) |
| Wavelength Options | 632.8 nm, 650 nm, 1550 nm |
| Output Power | ≥0.5 mW @ 632.8 nm |
| Brand | Topo |
|---|---|
| Model | WJS-1 |
| Origin | Tianjin, China |
| Manufacturer Type | Direct Manufacturer |
| Regional Classification | Domestic (China) |
| Imaging Sensor | CCD |
| Light Source | He-Ne Laser (632.8 nm) |
| Core Function | Qualitative and quantitative analysis of laser speckle formation and in-plane displacement measurement via digital speckle correlation |
| Included Components | CCD camera, He-Ne laser module, image acquisition card, proprietary speckle analysis software, precision optical mounts & alignment rods, optical components (beam splitters, mirrors, lenses, diffusers) |
| Brand | Topo |
|---|---|
| Origin | Tianjin, China |
| Manufacturer Type | Manufacturer |
| Model | WMG-1 |
| Price Range | USD 1,400 – 7,000 |
| Moving Mirror Fine Adjustment Precision | 0.0004 mm |
| Moving Mirror Coarse Adjustment Precision | 0.01 mm |
| Moving Mirror Fine Travel Range | 1 mm |
| Moving Mirror Coarse Travel Range | 12 mm |
| Beam Splitter & Compensator Plate Flatness | ≤ λ/20 |
| He-Ne Laser Output Power | 0.8–1 mW |
| Standard Configuration | Interferometer Main Unit, He-Ne Laser Source, One-Dimensional Adjustable Elevation Base |
| Optional Accessories | Low-Pressure Sodium Lamp, White Light Source, Gas Cell Assembly (Gas Chamber, Pressure Gauge, Hand Pump), Fabry–Pérot Etalon |
| Brand | Topo |
|---|---|
| Origin | Tianjin, China |
| Manufacturer Type | Manufacturer |
| Product Origin | Domestic |
| Model | WSDF-1 |
| Pricing | Upon Request |
| Output Voltage | 220 V AC |
| Emission Aperture Diameter | φ20 mm |
| Brand | Topo |
|---|---|
| Model | WSG-1 |
| Origin | Tianjin, China |
| Manufacturer Type | OEM Manufacturer |
| Product Category | Domestic Scientific Instrumentation |
| Pricing | Available Upon Request |
| Brand | Topo |
|---|---|
| Model | WSY-4 |
| Origin | Tianjin, China |
| Manufacturer Type | Direct Manufacturer |
| Category | Domestic Optical Teaching Instrument |
| Components | Optical Rail, 2D Adjustable Mounts, Photographic Plate Holder, White Viewing Screen, Multi-Aperture Mount, Single-Slit Adjuster (One-Side Variable), He–Ne Laser (632.8 nm), Convex Lens, Straight Edge Knife Blade |
| Power Integration | Integrated AC Power Supply Unit with Rail-Mounted Enclosure |
| Design | All-in-One Modular Bench System with Tool Storage Compartment |
| Brand | Topo |
|---|---|
| Model | WSZ-1BZ |
| Origin | Tianjin, China |
| Manufacturer Type | Direct Manufacturer |
| Country of Origin | China |
| Height | 700 mm |
| Vertical Adjustment Range | −10 mm to +30 mm |
| Base Interface | High-Elasticity Rubber Isolation Pads |
| Structural Design | Rigid Welded Steel Frame |
| Variant Options | Fixed-Foot (Type 1) and Castor-Mounted (Type 2) Configurations |
| Compatible Table Sizes | 600 × 600 mm to 1800 × 900 mm |
| Compliance | Designed for ISO 10360-compliant optical metrology environments |
| Brand | Topo |
|---|---|
| Model | WSZ-1D |
| Construction | Solid steel honeycomb core with high-permeability stainless steel top plate |
| Surface roughness | ≤ 0.8 µm |
| Flatness | ≤ 0.05 mm per m² |
| Mounting pattern | M6 threaded holes on 25 × 25 mm or 50 × 50 mm grid |
| Height | 800 mm |
| Available sizes (L × W × H) | 1200 × 800 × 800 mm |
| Vibration amplitude | ≤ 3 µm (under ambient laboratory conditions) |
| Core material | Medium-carbon steel honeycomb structure |
| Top plate material | High-permeability stainless steel (magnetic compatibility optimized) |
| Origin | Tianjin, China |
| Manufacturer type | OEM/ODM producer |
| Brand | Topo |
|---|---|
| Model | WSZ-2A |
| Origin | Tianjin, China |
| Manufacturer Type | Direct Manufacturer |
| Product Category | Domestic Scientific Instrumentation |
| Light Source | He–Ne Laser (632.8 nm) |
| Structural Design | Precision Optical Rail Mounting System |
| Control Interface | PC-Based Acquisition & Analysis Software (Chinese GUI) |
| Included Components | Main Unit, Movable Detector Unit, Single Adjustable Slit, Laser Module |
| Brand | Topo |
|---|---|
| Model | WSZ-4A |
| Origin | Tianjin, China |
| Manufacturer Type | Direct Manufacturer |
| Category | Domestic Optical Instrument |
| Key Components | Manual X-axis Rotational Mount, Light Source Adjuster, Detector Mount, λ/2 and λ/4 Waveplates, Semiconductor Laser (650 nm), Linear Polarizers, Precision Optical Goniometer, Collimating Lenses, White Light Source, Photodetector Unit, Integrated Optical Rail with Embedded Voltage Monitoring Circuit |
| Display | Analog Voltage Meter Indicating Polarization State |
| Compliance | Designed for Undergraduate Physics Lab Use per ISO/IEC 17025 Educational Equipment Guidelines |
| Brand | Topo |
|---|---|
| Origin | Tianjin, China |
| Manufacturer Type | OEM Manufacturer |
| Country of Origin | China |
| Model | XGS-1 |
| Pricing | Upon Request |
| Brand | Topo |
|---|---|
| Model | YB-IIB |
| Origin | Tianjin, China |
| Manufacturer Type | Direct Manufacturer |
| Compliance | Chinese Pharmacopoeia (ChP) WS1-235 and WS1-236-87 |
| Light Source | Tri-phosphor fluorescent lamp (CIE D65 spectral approximation) |
| Illuminance Range | 1000–4000 lx (continuously adjustable) |
| Built-in Illuminance Meter | Yes |
| Timed Inspection Mode | Programmable 10–30 s dwell time |
| Lamp Output | ≥400 lx per tube (single-tube configuration) |
| Conformance | Designed for USP <790>, EP 2.9.20, and ChP General Chapter 0901 |
| Brand | Topo |
|---|---|
| Origin | Tianjin, China |
| Manufacturer Type | Direct Manufacturer |
| Region of Origin | Domestic (China) |
| Model | YD-1 |
| Pricing | Available Upon Request |
| Hardness Range | 0.01–20 kgf |
| Accuracy | ±5% or ±0.05 kgf (whichever is greater) |
| Probe Stroke | 20 mm |
| Stroke Tolerance | ±0.1 mm |
| Continuous Operation Time | >24 h |
| Power Supply | 220 V / 50 Hz / 10 W |
| Dimensions (L×W×H) | 280 × 180 × 110 mm |
| Weight | 5 kg |
| Operating Temperature | +18 °C to +28 °C |
| Storage Temperature | −10 °C to +50 °C |
| Relative Humidity | 20–80 % RH |