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SH-75A 초음파 경도계

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▶초음파 경도계(SONOHARD)는 종래의 경도시험기와는 달리 측정물에 생긴 압흔의 크기를 현미경으로 측정하는 대신에 다이아몬드 압자 부착 진동봉을 정하중으로 재료면에 물려 초음파의 세로 진동을 가해서 경도를 측정하는 계측기입니다.
▶동일 재질, 동일 하중으로 피측정면에 진동봉을 대면 부드러운 피측정물은 압흔이 길어져 구속력이 강하게되어 공진 주파수는 높게 됩니다.
역으로 견고한 피측정물은 구속력이 약해져서 공진 주파수는 낮게 됩니다.
그 변화량과 경도의 상관관계를 측정하여 경도 환산을 합니다.

▶특징
- 몇초 안에 측정 가능
- 압력 흔적이 거의 없음(약0.1㎟)
- 경도치 즉독 가능(HV, HRC, HS, HB)
- 인장 강도(N/㎟) 환산 기능 있음
- 측정대(목재, 철제, 수지제)의 측정에 영향 없음
- (재)일본해사협회(NK)검정수험가
- 데이터, 메모리 400점
- 교정치 메모리 10점

▶장점
- 휴대용으로 현장 측정에 적합
- 모든 방향 측정 가능
- 정기 교환 부품 불필요, 설비 예산 삭감에 기여
- 열처리를 경도에 따라 관리 가능
- 대형품, 복잡한 형장품을 그대로 측정 가능
- 경도에 의한 금속 피로 검사로 설비의 이상 진단 가능
- 컴퓨터 및 데이터 관리 소프트(옵션)로 관리 가능
- 외부 프린터(옵션)로 출력 가능
- 상하한 설정으로 알람(무전압접점) 기능

명칭, 형식 : 초음파 경도계 SONOHARD SH-75A형

측정입자 : 마이크로 빅카스 다이아몬드입자(대면각 136°)
측정하중 : 19.61N(2kgf)
측정범위 : 빅카스 경도        HV50 ~ 999
               록웰굳기          HRC10.0 ~ 70.0
               쇼아경도          HS20.0 ~ 99.9
               브리넬경도        HB85 ~ 550

재현선 :  HV:±(3%rdg)HV, HRC:±1.0HRC, HS:±1.0HS, HB:±(3%rdg)HB
피측정재 : 강철(그외의 금속은 경도 기준편과의 교정에 의한 비교측정)
표시방식 : 디지털 표시(LCD4자리) EL백라이트 있음.
메모리점수 : 4000점
측정치표시단위 : 1HV, 0.1HRC, 0.1HS, 1HB, 1N/㎟
사용온도범위 : 0 ~ 50℃
전원 : AC어댑터 100V용 AM-954N
         또는 Ni-Cd전지 (SH-75A본체내장, BL점등5h, BL소등 8h)
치수 : SH-75A본체 190×110×109mm
         전동 프로브 φ50×164.5mm, 휴대용 케이스 358×267×150mm
질량 : SH-75A본체 약 1.2kg
         전동 프로브 약 350g(전동 프로브 케이블 제외)

표준기기 구성 : SH-75A 본체:1, 휴대용 케이스:1, 전동프로브:1,
                      전동 프로브 케이블 1.5m, 외부 입력용 커넥터:1,
                      경도 기준편 HV600:1, HRC55:1 AC아답타AM-965N:1, 취급설명서

옵션 : 눈금 교정용 경도 기준편 HS50 근방, 측정 스텐드 SH-S01,
         부속 장치 외경용, 내경용, 프린터 100V 용
         NP-104-RBJ(프린터용 케이블 있음)
         데이터 관리 소프트:SH-75A로 측정한 데이터를 시리얼 신호(RS232C)로 수신하여,
         표계산(엑셀)로 처리 가능한 형식의 파일을 작성하는 소프트입니다.
         (시리얼 케이블 9핀 타입 있음)

표시 내용 : (a)측정치:3자리
               (b)측정횟수:2자리
               (c)MAX : 3자리
               (d)MIN : 3자리
               (e)표준편치 : 4자리
               (f)평균치 : 4자리
인정 기능 : (a)상/하한 설정 및 판정
               (b)측정 횟수 및 평균치
               (c)데이터의 기록과 소거
출력 : (a)알림 출력     
             무선압접점 출력
             GOOD           NO GOOD
         (b)RS-232C 출력
             데이터 신호 및 프린터용
         (c)온라인용
             측정 개시 측정 완료의 무전압접점

　Specifications

Model SONOHARD SH-6A SONOHARD SH-5A SONOHARD SH-75
Probe Manual Motorized and manual switchable
Indenter Diamond indenter for micro-vickers
(a pyramid having an angle between opposite planes 136°)
Test load Approximately 20N (4.41 lbf) constant load spring
Measuring range Standard type : HV/HRC
Other combination : available two scales from followings		 Following four scales
are available as standard
1. Vickers HV 50～999
2. Rockwell HRC 10～70		 3. Brinell HB 85～550
4. Shore HS 20～99.9
Measuring accuracy HV/HB±3% of reading. HRC/HS±1.0
Applicable test materials Primarily steel, other materials may be tested
using a standard calibration block.
Measuring displayed Digital (4 figures LED) Digital (LCD) with backlight
Unit for digital presentation 1HV, 0.1 HRC, 1HB, 0.1HS
Operating temperature 0℃～50℃ (Instruments)
Power source AC110/220V(±10%) and Ni-Cd Battery (rechargeable)
Display unit dimensions SH-6A 180(W)×70(D)×100(H)
SH-5A 180(W)×70(D)×100(H)
SH-75 190(W)×110(D)×109(H)
Display unit and
probe weights		 Display unit 1.3kg 1.3kg 1.2kg
probe 0.35kg 0.4kg 0.4kg
Carrying case 350(W)×105(D)×260(H)mm, 3.6kg(SH-5A, SH-6A)
358(W)×155(D)×267(H)mm, 4.2kg(SH-75)
Other specifications for SH-75
Display a. Measuring value
b. Times
c. MAX : value		 3figures
2figures
3figures		 d. MIN : value
e. δ
f. χ		 3figures
4figures
4figures
Preset a. Upper
b. Lower		 c. Times
d. Cancel
Output a. Alarm : GOOD/NO GOOD c. Start/Stop for on-line measurement
b. RS-232C
Data memory : 4000 points of measured values
Measured calibration values : MAX. 10 values memory and recall
English or German language displays are selectable (Factory modification)
Standard components
(1 pce each)
1. Display unit
2. Probe
3. Probe attachment (standard)
4. Probe cable 1.5m		 5. AC adapter / recharger
6. Carrying case
7. Reference test block (HV scale)
8. Instruction manual
Optional accessories
1. Measuring stand (SH-S01)
2. Test block (HV, HRC, HB, HS)
3. Probe attachment for pipe materials
4. Probe attachment for inner races
5. Printer with cable (SH-75 only)
6. Cable for RS-232C output(1m) (SH-75 only)		 picture

The SonoHard Ultrasonic Hardness Tester

Data sheet in pdf format here

Features of the Sonohard 

  • Direct reading of hardness
  • Easy to use hand held probe can be quickly applied to a variety of surfaces from any direction.
  • Easy to use - no prior experience of hardness measurement techniques required
  • Built in memory for data and calibration points
  • Measures Vickers, Rockwell Brinell and Shore scales
  • Interchangeable probes for use with different surface profiles - pipes - concave surfaces, gears valves etc.
  • Portable works with NiCd battery
  • Motorized version for automatic inspection systems
Introduction to the Sonohard SH75A Ultrasonic Hardness Tester
The Sonohard measures the hardness of surfaces and materials by means of small diamond indenter probe which is pressed on to the surface under examination. The probe is contained in a hand held tool so that it is easy to apply from any direction. The probe is guided by an adaptor piece at the end of the tool so as to maintain the probe perpendicular to the surface under test. The probe can be applied manually or made to advance automatically to the surface.

Principle of Operation
The Sonohard operates by measuring the changes in resonant frequency of the probe when it is applied to the sample surface. The probe is stimulated with a longititudal ultrasonic vibration. When the probe comes into contact with another material the damping effect on the probe is related to the hardness of the sample material - softer materials having a greater damping effect than hard materials. This is reflected in a change of resonant frequency of the probe which is measured by the instrument. Calibrations are entered into the Sonohard using test blocks of known hardness.

Easy to Use
Sonohard and probeThe SH75 is very easy to use and requires no special knowledge of hardness testing in order to operate the instrument. The unit includes all four hardness scales and you can switch between them at the touch of a button. The current scale is always indicated on the display.
     To make a hardness measurement the probe is pressed against the surface to be measured and held in position for a few seconds until a reading is obtained. The result is immediately displayed in the selected hardness scale on the display. Several measurements can be taken sequentially and the average and standard deviation will be calculated automatically by the instrument.
     The calibration procedure is equally straightforward. A measurement is made on known standard test block and entered into memory as a calibration point. The Sonohard in ideal for inspection and quality control applications in a production environment. It is light weight and portable and can be operated from rechargeable batteries or a power adapter.

 

Sonic Probe Shapes
Standard attachment for flat and convex surfaces
Standard attachment Standard attachment
Probe for concave surfaces
Probe for concave surfaces Probe for concave surfaces
Probe for pipes and convex surfaces
Probe for convex surfaces Probe for convex surfaces
Basic probe with attachment removed
basic probe Basic probe
Fine probe
Fine probe Fine probe
Stand mounted SonoHard
  Stand mount

　

Specifications of the SonoHard Hardness Tester
Indenter Diamond indenter for micro Vickers
Test load ~ 2Kgf ( 4.41 lbf ) constant load spring
Measuring range Standard - HV/HRC 
Optional Vickers HV 50 - 999 
Rockwell HRC 10 - 70 
Brinell HB 85 - 550 
Shore HS 20 - 99.9
Accuracy HV/HB +/- 3% of reading HRC/HS +/- 1% 
Test materials primarily steel, other materials may be tested using a standard calibration block
Display 4 digit LEDs
Display resolution 1 HV, 0.1 HRC, 1HB, 0.1 HS
Operating temperature 0 - 50 C
Power 110 V / 220 V and NiCad Battery.
Data Memory (SH-75) 4000 points of measured values. 10 calibration points

 

Hardness Scale Guide - Typical Applications
Hardness Scale Selector 
x = OK 
X = commonly used		 HV HRC HS HB HRB (50 -70) 
Option
 Materials
Cemented Carbide x x   　 　
Iron/steel X X x x  
Non ferrous metal   　 　 　 x
 Shapes
Thin plates x   　 　 x
Small parts x x   　 x
Large parts X X X X X
 Inspection
Strength of materials X X   　 　
Heat treatment X X x x  
Carburizing heating x   　 　 　
High Frequency heating x   　 　 　
Hard chrome plating x   　 　 　
Abrasion of heat treatments x   　 　 　
Hardened paddings x x   　 　
Work hardening x x   　 　
Welding hardness x   　 　 　

　

New Option!: TRY IT! LIKE IT! BUY IT! One week leasing option of the Sonohard Model SH-75A for only $600. The $600 will apply to the purchase of the instrument if it is bought at the end of the week.
Ordering Information
sonohard kitAll models include one probe and cable, display unit, standard probe attachment, AC adapter/charger, test block (Vickers) instruction manual and carrying case. Prices US$
Model  
SH-75A Includes all 4 hardness scales, manual /motorized probe, RS232 data output. Upper and lower limit switches, computes average and standard deviations of measured values. $5,375.00
Accessories Price
SH-SO1 Measuring stand $625.00
SH-PIPE Attachment for pipes $105.00
SH-IN Attachment for concave surfaces $105.00
SH - HV Test block Vickers $255.00
SH - HRC Test block Rockwell $160.00
SH - HB Test block Brinell $230.00
SH - HS Test block Shore $255.00
PRT-CB Printer with Cable $625.00

 

Principles of Measurement
When a vibration rod of a certain material is pushed onto the surface of a test sample with a certain force, the softer the material of the sample, the deeper the indentation and the stronger the binding force.
In addition, the higher will be the resonance frequency.
In contrast, the harder the sample material, the weaker the binding force and the lower the resonance frequency.
The checker calculate the hardness of materials from the relationship between resonance frequency and hardness.

Applications of Ultrasonic Hardness Checkers
Quality control applications
Maintenance applications

　

 

(주)코린스 I 대표 : 홍영화 I 경기도 성남시 중원구 둔촌대로 474, 선텍시티1차 708호
사업자등록번호 116-81-31753
통신판매업신고번호 2005-경기성남-0886호
전화 031-777-1588 I 개인정보관리책임자 윤상미

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