KR810000276Y1 - Force measuring device - Google Patents
Force measuring device Download PDFInfo
- Publication number
- KR810000276Y1 KR810000276Y1 KR2019800002509U KR800002509U KR810000276Y1 KR 810000276 Y1 KR810000276 Y1 KR 810000276Y1 KR 2019800002509 U KR2019800002509 U KR 2019800002509U KR 800002509 U KR800002509 U KR 800002509U KR 810000276 Y1 KR810000276 Y1 KR 810000276Y1
- Authority
- KR
- South Korea
- Prior art keywords
- measuring device
- force measuring
- tube
- adjusting rod
- frequency
- Prior art date
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Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
- G01L3/00—Measuring torque, work, mechanical power, or mechanical efficiency, in general
- G01L3/02—Rotary-transmission dynamometers
- G01L3/04—Rotary-transmission dynamometers wherein the torque-transmitting element comprises a torsionally-flexible shaft
- G01L3/045—Rotary-transmission dynamometers wherein the torque-transmitting element comprises a torsionally-flexible shaft by measuring variations of frequency of stressed vibrating elements
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
- G01L3/00—Measuring torque, work, mechanical power, or mechanical efficiency, in general
- G01L3/02—Rotary-transmission dynamometers
- G01L3/04—Rotary-transmission dynamometers wherein the torque-transmitting element comprises a torsionally-flexible shaft
- G01L3/10—Rotary-transmission dynamometers wherein the torque-transmitting element comprises a torsionally-flexible shaft involving electric or magnetic means for indicating
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Measurement Of Mechanical Vibrations Or Ultrasonic Waves (AREA)
Abstract
내용 없음.No content.
Description
제1도는 변환기 시스템을 갖는 힘 측정장치를 도시한 것.1 shows a force measuring device having a transducer system.
제2도는 조절봉의 연결스프링에 대한 연결 및 다른 진동시스템의 지렛대를 도식적으로 보인 것.2 is a schematic view of the connection to the connecting spring of the adjusting rod and the lever of another vibration system.
본 고안은 발진기 시스템을 갖춘 힘 측정장치에 관한 것으로, 기계적인 값에 의해 조절되는 물리적 특성에 따라 주파수를 결정하는 발전기시스템의 일부분이 조절봉의 자유 말단에 결합되어 있으며, 본 장치는 차등압 변환기에 적용될 수 있는 것이다. 본 고안에 따른 특별한 잇점은 전기 출력신호가 주파수 상사형으로 존재하므로 주파수 상사 측정 및 조정기술에 매우 유효하게 유용된다는 점이다.The present invention relates to a force measuring device with an oscillator system, in which a part of a generator system, which determines a frequency according to a physical property controlled by a mechanical value, is coupled to the free end of a control rod, and the device is connected to a differential pressure transducer. It can be applied. A special advantage of the present invention is that the electrical output signal is frequency analogous, which is very useful for frequency analog measurement and adjustment techniques.
본 고안을 첨부 도면을 참조로 상술하면 다음과 같다.The present invention will be described below with reference to the accompanying drawings.
제1도는 진동현-변환기시스템을 갖는 힘 측정장치를 도시하고 있다. 격벽(1)의 구멍에는 굴곡관(2)의 열린말단(3)이 꼭 맞게 삽입되어 있다. 굴곡관(2)의 다른쪽 폐쇄말단(4)에는 밖으로부터 측정힘 K가 측방향에 수직으로 가해지며, 굴곡관(2)만의 조절봉(5)가 축방향으로 삽입되어 폐쇄말단(4)에 단단히 고정되어 있다.1 shows a force measuring device having a vibrating string-transducer system. The open end 3 of the bend tube 2 is inserted into the hole of the partition 1 exactly. Measurement force K is applied to the other closed end 4 of the bending tube 2 from the outside perpendicularly to the lateral direction, and the adjusting rod 5 of only the bending tube 2 is inserted in the axial direction to close the closing end 4. It is firmly fixed to
측정힘 K가 굴곡관(2)의 탄성력보다 세면 굴곡관(2)가 아래로 굽는다. 굴곡관(2)의 열린말단(3)밖으로 튀어나온 조절봉(5)의 자유말단(6)은 측정힘에 좌우되는 굴곡관(2)의 굴곡을 측 방향에 수직인 변위로 바꾸어준다. 이런 변위를 전기신호로 변환시키기 위해서는 조절봉(5)의 자유말단(6)은 비교적 유연한 연결스프링(7)로써 지렛대(8)의 한 끝에 단단히 연결되어 있다. 고정된 받침점(9)에 가로 놓인 지체대(8)의 다른 끝은 진동현(10)의 한 끝에 연결되어 있으며, 진동현(19)의 다른끝은 틀(11)에 연결되어 있다. 진동현(10)은 공지의 방법에 의해 여기 소자(12)로부터 진동에 영향을 받지 않게 되어 있다.The bending tube 2 bends down when the measuring force K is stronger than the elastic force of the bending tube 2. The free end 6 of the adjusting rod 5 protruding out of the open end 3 of the bend tube 2 converts the bend of the bend tube 2 dependent on the measurement force into a displacement perpendicular to the lateral direction. To convert this displacement into an electrical signal, the free end 6 of the adjusting rod 5 is firmly connected to one end of the lever 8 with a relatively flexible connection spring 7. The other end of the retardation stand 8 lying on the fixed support point 9 is connected to one end of the vibrating string 10, and the other end of the vibrating string 19 is connected to the frame 11. The vibrating string 10 is not affected by the vibration from the excitation element 12 by a known method.
이러한 기계적 진동은 변환장치(13)에 의해 전기적 진동으로 변화되어 여기시스템(12)를 제어하게 된다. 진동현 발진기의 동작을 위한 전기접속은 잘 알려져 있으며, 더 이상의 설명이 필요치 않기 때문에 감쇄하는 진동을 계속 유지시키기 위한 접속배열을 여기에 설명되지 않았다. 진동현(10)의 고유진동수는 현 장력 및 그와 함께 측정함에 좌우되는 굴곡관(2)의 조정작용의 함수로서 즉시 주파수 상사 전기 출력 신호로서 변환된다.This mechanical vibration is converted into electrical vibration by the converter 13 to control the excitation system 12. The electrical connections for the operation of the vibrating string oscillator are well known, and no further arrangement is needed here to maintain the damping vibrations because no further explanation is required. The natural frequency of the vibrating string 10 is immediately converted as a frequency-like electrical output signal as a function of the string tension and the adjustment of the flexure tube 2, which depends on the measurement with it.
제2도에서는 연결스프링(7)상에 조절봉(5)가 연결된 것과, 다른 진동시스템에서의 지렛대(8)이 도식적으로 도시되어 있다. 그 진동시스템은 발진회로서 그것의 주파수 결정 부분은 압전(piezo electric)송신기이고 그것의 고유주파수는 지렛대(8)에 의해 그것에 작용된 압력에 따라 변한다. 측정스프링으로 작용하는 굴곡관(2)와 연결스프링(7)은 병렬연결된 스프링 시스템을 형성한다. 측정스프링에 대한 발진 회로의 역 영향을 방지하기 위해서 연결스프링(7)이 배열되어 있기 때문에 그것의 스프링 상수는 굴곡관(2)의 그것보다 1/10-2/10만큼 더 작다.In FIG. 2 there is shown diagrammatically a lever 8 connected to a connecting spring 7 and a lever 8 in another vibration system. The vibration system is an oscillation circuit whose frequency determining part is a piezo electric transmitter and its natural frequency varies with the pressure applied to it by the lever 8. The bent tube 2 and the connecting spring 7 which act as measuring springs form a parallel spring system. Since the connecting spring 7 is arranged to prevent the adverse effect of the oscillation circuit on the measuring spring, its spring constant is 1 / 10-2 / 10 smaller than that of the bend tube 2.
Claims (1)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR2019800002509U KR810000276Y1 (en) | 1980-04-17 | 1980-04-17 | Force measuring device |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR2019800002509U KR810000276Y1 (en) | 1980-04-17 | 1980-04-17 | Force measuring device |
Related Parent Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
KR1019760001771 Division | 1976-07-21 |
Publications (1)
Publication Number | Publication Date |
---|---|
KR810000276Y1 true KR810000276Y1 (en) | 1981-03-24 |
Family
ID=19216935
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
KR2019800002509U KR810000276Y1 (en) | 1980-04-17 | 1980-04-17 | Force measuring device |
Country Status (1)
Country | Link |
---|---|
KR (1) | KR810000276Y1 (en) |
-
1980
- 1980-04-17 KR KR2019800002509U patent/KR810000276Y1/en active
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