JPS5761919A - Electronic balance - Google Patents

Electronic balance

Info

Publication number
JPS5761919A
JPS5761919A JP13724380A JP13724380A JPS5761919A JP S5761919 A JPS5761919 A JP S5761919A JP 13724380 A JP13724380 A JP 13724380A JP 13724380 A JP13724380 A JP 13724380A JP S5761919 A JPS5761919 A JP S5761919A
Authority
JP
Japan
Prior art keywords
measurement
signal
sample
delivers
circuit
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
JP13724380A
Other languages
Japanese (ja)
Inventor
Yasuhiro Fujinaga
Akira Kawamoto
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Shimadzu Corp
Shimazu Seisakusho KK
Original Assignee
Shimadzu Corp
Shimazu Seisakusho KK
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Shimadzu Corp, Shimazu Seisakusho KK filed Critical Shimadzu Corp
Priority to JP13724380A priority Critical patent/JPS5761919A/en
Priority to DE8181303259T priority patent/DE3176484D1/en
Priority to US06/283,534 priority patent/US4375838A/en
Priority to EP81303259A priority patent/EP0044707B1/en
Priority to EP85116511A priority patent/EP0189589A3/en
Publication of JPS5761919A publication Critical patent/JPS5761919A/en
Pending legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01G—WEIGHING
    • G01G7/00—Weighing apparatus wherein the balancing is effected by magnetic, electromagnetic, or electrostatic action, or by means not provided for in the preceding groups
    • G01G7/02—Weighing apparatus wherein the balancing is effected by magnetic, electromagnetic, or electrostatic action, or by means not provided for in the preceding groups by electromagnetic action
    • G01G7/04—Weighing apparatus wherein the balancing is effected by magnetic, electromagnetic, or electrostatic action, or by means not provided for in the preceding groups by electromagnetic action with means for regulating the current to solenoids
    • G01G7/045—Weighing apparatus wherein the balancing is effected by magnetic, electromagnetic, or electrostatic action, or by means not provided for in the preceding groups by electromagnetic action with means for regulating the current to solenoids having a PID control system

Landscapes

  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Engineering & Computer Science (AREA)
  • Automation & Control Theory (AREA)
  • General Physics & Mathematics (AREA)
  • Testing Or Calibration Of Command Recording Devices (AREA)

Abstract

PURPOSE:To always obtain the accurate value of measurement and at the same time to simplify the sensitivity calibrating mechanism, by carrying out an automatic calibration of sensitivity for an electronic balance at each prescribed period. CONSTITUTION:A deciding device 6 within a control part 6 decides the pressure or absence of a sample on a bowl 1. Then the presence of sample is decided with a data of >=30 counting for instance, and the data is delivered to a circuit A under measurement. While the data is delivered to a circuit B in measurement waiting in the case of <=30 counting. A period signal generating circut 62 delivers a pulse signal alpha at each certain period in a range of 1-180min. An AND circuit 62 detects that no sample is on the bowl 1 and that the signal alpha has been deliverd and then delivers a weight driving pulse signal beta, and a timer 64 delivers continuously the weight driving signal and the under-calibration signal to a calibration display device 8 and only for the reading time of measurement.
JP13724380A 1980-07-17 1980-09-30 Electronic balance Pending JPS5761919A (en)

Priority Applications (5)

Application Number Priority Date Filing Date Title
JP13724380A JPS5761919A (en) 1980-09-30 1980-09-30 Electronic balance
DE8181303259T DE3176484D1 (en) 1980-07-17 1981-07-15 An electronic balance
US06/283,534 US4375838A (en) 1980-07-17 1981-07-15 Electronic balance
EP81303259A EP0044707B1 (en) 1980-07-17 1981-07-15 An electronic balance
EP85116511A EP0189589A3 (en) 1980-07-17 1981-07-15 An electronic balance

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP13724380A JPS5761919A (en) 1980-09-30 1980-09-30 Electronic balance

Publications (1)

Publication Number Publication Date
JPS5761919A true JPS5761919A (en) 1982-04-14

Family

ID=15194109

Family Applications (1)

Application Number Title Priority Date Filing Date
JP13724380A Pending JPS5761919A (en) 1980-07-17 1980-09-30 Electronic balance

Country Status (1)

Country Link
JP (1) JPS5761919A (en)

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5921732U (en) * 1982-07-30 1984-02-09 株式会社島津製作所 balance system
JPS5956529U (en) * 1982-10-06 1984-04-13 アンリツ株式会社 Weight sorting device
JPS6053697A (en) * 1983-08-31 1985-03-27 Ishikawajima Harima Heavy Ind Co Ltd Device for reducing moment lowering rotor blade pitch
JPH01151222U (en) * 1988-04-11 1989-10-19
JPH0330831U (en) * 1989-07-31 1991-03-26
US6709153B2 (en) * 2001-10-23 2004-03-23 Sii Nanotechnology Inc. Thermogravimetry apparatus
JP2020098206A (en) * 2018-12-14 2020-06-25 メトラー−トレド ゲーエムベーハー Calibration weight assembly for gravimetric measuring device

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5369669A (en) * 1976-12-02 1978-06-21 Kamacho Seiko Kk Calibration means for span in load cell weighing machine

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5369669A (en) * 1976-12-02 1978-06-21 Kamacho Seiko Kk Calibration means for span in load cell weighing machine

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5921732U (en) * 1982-07-30 1984-02-09 株式会社島津製作所 balance system
JPH0424422Y2 (en) * 1982-07-30 1992-06-09
JPS5956529U (en) * 1982-10-06 1984-04-13 アンリツ株式会社 Weight sorting device
JPH0332985Y2 (en) * 1982-10-06 1991-07-12
JPS6053697A (en) * 1983-08-31 1985-03-27 Ishikawajima Harima Heavy Ind Co Ltd Device for reducing moment lowering rotor blade pitch
JPH01151222U (en) * 1988-04-11 1989-10-19
JPH0330831U (en) * 1989-07-31 1991-03-26
US6709153B2 (en) * 2001-10-23 2004-03-23 Sii Nanotechnology Inc. Thermogravimetry apparatus
JP2020098206A (en) * 2018-12-14 2020-06-25 メトラー−トレド ゲーエムベーハー Calibration weight assembly for gravimetric measuring device

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