재료의 공진 주파수 측정기

재료의 공진 주파수 측정기

2017/6/5

영신컨설턴트 (tel. 02-529-8803)

용도 목재나 재료의 등급 판단

modulus of elasticity (MOE)

 

USAGE INSTRUCTIONS (사용방법)

PACKAGE CONTENTS(구성)

Weighing scale

Scale display unit

Tape measure

Steel hammer (100 g)

Battery and charger

Microphone

USB to serial converter cable

Portable Lumber Grader Software

User's manual

TECHNICAL SPECIFICATIONS(사양)

Weighing scale
Dimensions	250 x 75 x 90 mm
Capacity	30 kg
Resolution	10 g
Output	RS232 signal
Power supply	12 V adapter or 4 AA size batteries
Microphone
Type	Unidirectional
Sensitivity	-56 dB (0 dB = 1 V/mbar at 1000 Hz)
Frequency range	100 - 15000 Hz
Operational temperature	5 - 40 °C
Hammer
Weight	0.1 – 3% of the lumber weight
Grading
Principle	mass, CKDR and MOE determination
Time requirement	~1 s
Grading table	identical to the EN-338 norm