How to choose a drop weight deflectometer Users can choose FWD according to their own conditions, mainly refer to the following aspects: FWD's two main indicators are test speed and accuracy, and long-term stability. Large capacity waterproof backpack, lightweight waterproof computer bag, casual waterproof backpack, PVC waterproof backpack Dongguan Jinying Handbags Co.,Ltd , https://www.jinyingnicebag.com
1. Test speed:
Earlier foreign imported products were measured at 1 minute. In recent years, imported products were 30 to 40 seconds. Domestic FMD at Imagaya FWD is a measured point within 20 seconds.
2. Test accuracy:
FWD is a dynamic impact measurement. If you want to get accurate measurement results, you must correct or compensate the measurement data with dynamic signals. Its resolution should be less than 1μm and the accuracy should be less than 2%.
3. Long-term stability For purchasers, the following aspects can be considered:
a. The main components should be imported products;
b. Word of mouth or reputation of users and suppliers;
c. The manufacturer's development, production history and number of users, or market share, generally should select products with more than 10 users, or manufacturers with more than 5 years of development and production experience.
4. Manufacturers who can issue measurement certificates from authoritative departments and have follow-up service capabilities.
5. Has rich application experience and the ability to guide users to use and related experiments.
6. The power form is preferably hydraulic power. At present, FWD manufacturers in all countries of the world use hydraulic power, and never use other forms of power (such as electric push rods).
7. The manufacturer should have independent intellectual property rights.