Drop Testers
A drop tester answers a very direct engineering question: when a packag…
5 entriesPDT 80 · PDT 80M · PDT 300
Lansmont · Crystal Instruments officially authorized distributor in China
Transport testing.
Dynamic measurement.
Lansmont test equipment. Crystal Instruments measurement systems.
Selection, delivery, training and calibration.
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01 / EQUIPMENT
Find your test equipment
Shock Testers
Mechanical shock testing answers a specific engineering question: can a…
15 entriesHS15/50 · HSX15/HSX30 · HSX30/122
Inclined Impact Testers
An inclined impact tester answers one specific engineering question: ho…
2 entriesIT 152-4K · IT 213-6K
Compression Testers
A compression tester answers a specific engineering question: can a pac…
5 entries122-15 · 152-30 · 152-50
Load Stability Dynamics
Load stability describes how a pallet unit load responds to the horizon…
3 entriesTruMotion
Environmental Data Recorders
Transport environment data recorders are small, self-powered instrument…
7 entriesSAVER 3D15 · SAVER 3M30 · SAVER 3X90
Shock & Drop Data Acquisition Systems
A shock and drop data acquisition system exists because drop, shock and…
4 entriesTest Partner 3 · Test Partner 4
Vibration Test Systems
Lansmont vibration test systems reproduce the dynamic environment a pro…
13 entriesModel 1000 · Model 1800 · Model 6000H
Vibration Controllers
A vibration controller is the closed-loop brain of any shaker system. I…
11 entriesSpider-80M · Spider-81 / 81B · Spider-101i
Dynamic Signal Analyzers
A dynamic signal analyzer (DSA) captures fast-changing physical quantit…
16 entriesCoCo-70X · CoCo-80X / 90X · GRS (Ground Recorder System)
Modal Testing & Structural Dynamics
Modal testing applies a known excitation to a structure, measures the r…
11 entriesEDM Modal
Machine Condition Monitoring
Machine condition monitoring (MCM) answers one question: how healthy is…
9 entriesSpider-80X MCM · VDS
Test & Analysis Software
Test and analysis software is the brain of any vibration, shock, or str…
12 entriesAcoustic Analysis · CI Data File Reader · EDM · Digital Filters
Contract Testing Services
Contract testing—also called commissioned or outsourced testing—means h…
12 entries
02 / SELECTED MODELS
Equipment at a glance
Lansmont PDT 300 Precision Drop Tester
- Max payload
- 300 kg (661 lbs)
- Drop height range
- 2.5–244 cm (1–96 in)
Lansmont SAVER 3X90 Shock and Vibration Field Data Recorder
- Weight
- 473 g (16.7 oz)
- Dimensions
- 95 × 74 × 43 mm (3.7 × 2.9 × 1.7 in)
Crystal Instruments Spider-20 Dynamic Signal Analyzer & Data Recorder
- Input channels
- 4
- Coupling
- AC、DC、IEPE (ICP)
Crystal Instruments Spider-81 / Spider-81B Vibration Test Controller
- DAC resolution
- 24 bit
- Input range
- ±20 V
03 / INTERACTIVE · SIGNAL BASICS
One signal.
Different sampled waveforms.
Move the slider. The orange waveform changes with its sample points; the blue reference stays fixed.
Try 8 Hz for aliasing, 10 Hz at the boundary, then 12 Hz and higher to compare display interpolation with ideal reconstruction.
Mathematical illustration, not equipment measurements. Input: a 5 Hz sine, unit amplitude, zero phase; a 1 s window. Real selection also depends on bandwidth and anti-alias filtering.
Explore signal analyzersFIXED INPUT / 5 HzWINDOW / 1 s
Original signal (fixed)Straight-line displaySample points
Straight lines join adjacent samples. This display is not ideal band-limited reconstruction.
40 Hz gives 8 samples per cycle. Corners and missed peaks come from straight-line display, not aliasing here. Switch to ideal reconstruction to compare.
Model assumptions and sources
The input is sin(2π × 5t). Samples are taken at n/fs. Both endpoints are shown, so a 1 s plot has fs + 1 dots.
Ideal mode assumes an infinite uniform sample sequence and an ideal baseband low-pass reconstruction filter. The 1 s chart is a viewing window, not a finite-record reconstruction. Noise, quantization, clock jitter and real filters are omitted.
At 8 Hz, 5 Hz and an inverted 3 Hz sine give identical samples. At 10 Hz, zero phase gives all-zero samples. Above 10 Hz, ideal reconstruction matches the 5 Hz input.
Sources: NI — Sampling and aliasing · Analog Devices — Band-limited sampling
01
Selection & configuration
Discuss the specimen, applicable standards and laboratory conditions.
02
Installation & training
Equipment commissioning and operator training after delivery.
03
Calibration & maintenance
Contact our team for calibration, maintenance and spare parts.
Two WTC sites · see both for Lansmont
WTC also runs its main site www.wtc.net.cn (West Technology Co., Ltd; Lansmont + Data Physics) alongside this Shenzhen site (Lansmont + Crystal Instruments). For any Lansmont topic—solutions, models or standards—please consult both sites. For Data Physics, prefer the Beijing site. www.wtc.net.cn
