Electronic Extensometer/Extensometer/ Tension Extensometer Used on The Universal Testing Machine Yyu/Yyj/Yys

Product Description

Electronic extensometer/extensometer/ tension extensometer used on the universal testing machine YYU/YYJ/YYS 

 

Product presentation
 

Our production of electronic extension project using resistance strain type principle, divided into YYU, YYS YYJ and etc. We are one of the largest electronic extensometer project of professional production base. It has been widely applied in various systems of junior colleges, universities, scientific research units, and the factory laboratory. It has the structure to be dexterous, use convenient, stable and reliable many characteristics. Products are 0.5, 1 levels accuracy extension plan, which can be used for static, dynamic mechanical test.

1. Profile

(1) YYU series axial deformation extensometer, which is applicable to metal, non-metallic material test. It includes regular extensometer, average strain extensometer, special extensometer (large standard steel hinge line, concrete, rocks, wood, etc.). Used to measure elastic modulus E, provisions non-proportional extension intensity RP, stipulated total extension strength RT, various elongations, strain hardening exponent N and other parameters.

(2) YYJ series fracture mechanics and the lateral deformation of extension plan, is used to measure Poisson's ratio U, plastic strain R, KIC, COD parameters. Also used in reverse shear modulus G, regulation disproportional torsion stress RP (for example Rp0.015, Rp0.3, etc.) of the torsion

extensometer.
(3) YYS series 0.5 level high-precision axial static, dynamic Extensometer.

 

2. Specification

XXX-XX/XX-XX

Special structure

Express series
 

3. Operating method

(1) YYU series stretched meter installed card: with two fingers, knead extensometer, make two arms from stem and marking arm contact, attach the label from slice open inserted in one arm and standard pole. Through the extensometer hook, with elastic will stretched plan fixed in sample. Note: add hold power should be appropriate, two knife-edge centerline and sample axis parallel. Check carefully and then, take subscript piece, make from arm with standard distance between around 0.5 mm pole reserved spacing. To use a spring gripping the YYU series extensometer, please refer to article 2 and special precautions.

(2) YYS series stretched meter installed card: attach the label from bolt inserted in the pin hole, to ensure the gauge length is accurate. Extensometer fixed on the sample with spring, also can use elastic gripping. In guarantee extensometer installed correctly, stable, take out the gauge length pin, to make experiment.

(3) YYJ series extensometer of outfit card: seized up two arms, using the elastomeric own elastic outfit card in the knife edge of sample. Note: do not use super deformation, lest damage extensometer. Special note: no matter use spring or rubber band blessing, must choose appropriate clamping force when clamping, any clamping method, all need two knife-edge centerline and sample axis parallel. Spring or rubber band of clamping state can be adjusted.

 

4. Technical parameters

(1) The strain gauge resistance: 350 ohms

(2) Bridge voltage value: acuities 6V (dc, ac all can)

(3) Output sensitivity: about 2mV/V

(4) Extensometer gauge length: YYU series20~200 mm, YYJ series 5~25 mm

(5) Maximum deformation: YYU series25 mm, YYJ Series 4mm

(6) Output terminal connector: four core or five core plugs, etc

(7) The above is general parameters, if users have special requirements, we can provide special production according to need. Please inform us when ordering.

 

5. Problem and solution

(1) No signal: using a multimeter to resistance gears measured signal group and bridge resistance of pressure group, about 350 ohms,measuring the arbitrary signals end and arbitrary bridge pressure resistance, about 280 ohms. If there are discrepancies, then open joint to check whether disconnected or a virtual welding.

(2) Signal fluctuation: using a multimeter documents (24M) resistance measurement arbitrary end and extensometer between resistance of the shell, not just a short-circuit.

(3) Repeatability poor: check whether fixed screw loose, blade for wears.

(4) Zero big: check whether the gauge length is appropriate, whether blade marking is loosen. If it cannot be excluded, please contact with us, but not disassemble. Extensometer itself quality damage, is free guaranteed for one year. Improper use or external damage will be charged for the repairs.

 

6. Output and connect

The whole bridge connection output, according to the wiring colors represent: (green) signals + (red) bridge pressure + (white) signals - (yellow) bridge pressure -

Generally provide four core or USB plug, which can also according to the requirements of users connect five core, nine needle plugs or provide with plug for wiring supply according to users' needs

 

















FAQ


1. Are you a manufacturer?
Yes, we are one of the largest manufacturer of every kinds of testing machines in China. In general, every machine shipped from our factory provides 12 months of free maintenance, taking into account shipping reasons. We can extend the maintenance period for our customers for 2 months.
2. Do you have after-sales service? How can I ask? What about warranty?
Before the delivery of the equipment, we will carry out the factory inspection and the equipment will be shipped after the inspection. If your machine does not work properly, you can contact us and we will try our best to communicate with you via email or skype video chat. We promise we will reply to you within 24 hours and with 3 Within a working day to provide solutions. After confirming that it is really necessary, we can send you new parts or on-site maintenance.
The service does not include mechanical failure due to the following reasons:
(1) Wrong operation;
(2) Privately modified;
(3) Failure caused by non-equipment itself
(4) Use environment that is not suitable for equipment operation. Such as high temperature, humidity, corrosive gas or vibration.
(5) Problems caused by movement or transportation.
(6) Consumable components.
(7) Natural disasters
3. What is the delivery deadline?
Most of the time, we have inventory at the factory. If not, the delivery time is usually 15 to 20 days after receiving the payment. If you need it urgently, we can consider making special arrangements for you.
4. What kind of packaging and transportation do you use?
Under normal circumstances, we will use ordinary orders such as DHL, Fedex, UPS TNT transport. Large orders will use aviation or shipping.
5. Can the device be customized? Can I customize my own design on the device?
We can not only provide standard machines, but we can also provide customized machines according to your needs.
At the same time, we can also place your trademark on the machine.
6. What kind of packaging do you use?
Plastic sealed and sturdy wooden box.
7. What payment methods do you support?
Paypal, T/T, Western Union,L/C