JPS6324248B2 - - Google Patents

Info

Publication number
JPS6324248B2
JPS6324248B2 JP17696481A JP17696481A JPS6324248B2 JP S6324248 B2 JPS6324248 B2 JP S6324248B2 JP 17696481 A JP17696481 A JP 17696481A JP 17696481 A JP17696481 A JP 17696481A JP S6324248 B2 JPS6324248 B2 JP S6324248B2
Authority
JP
Japan
Prior art keywords
water level
current
voltage
level detection
signal line
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.)
Expired
Application number
JP17696481A
Other languages
English (en)
Japanese (ja)
Other versions
JPS5876725A (ja
Inventor
Yutaka Ogawa
Yasumasa Hashimoto
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.)
Panasonic Electric Works Co Ltd
Original Assignee
Matsushita Electric Works Ltd
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 Matsushita Electric Works Ltd filed Critical Matsushita Electric Works Ltd
Priority to JP17696481A priority Critical patent/JPS5876725A/ja
Publication of JPS5876725A publication Critical patent/JPS5876725A/ja
Publication of JPS6324248B2 publication Critical patent/JPS6324248B2/ja
Granted legal-status Critical Current

Links

Classifications

    • GPHYSICS
    • G01MEASURING; TESTING
    • G01FMEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME
    • G01F23/00Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm
    • G01F23/22Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm by measuring physical variables, other than linear dimensions, pressure or weight, dependent on the level to be measured, e.g. by difference of heat transfer of steam or water
    • G01F23/24Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm by measuring physical variables, other than linear dimensions, pressure or weight, dependent on the level to be measured, e.g. by difference of heat transfer of steam or water by measuring variations of resistance of resistors due to contact with conductor fluid
    • G01F23/241Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm by measuring physical variables, other than linear dimensions, pressure or weight, dependent on the level to be measured, e.g. by difference of heat transfer of steam or water by measuring variations of resistance of resistors due to contact with conductor fluid for discrete levels
    • G01F23/243Schematic arrangements of probes combined with measuring circuits

Landscapes

  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Fluid Mechanics (AREA)
  • General Physics & Mathematics (AREA)
  • Measurement Of Levels Of Liquids Or Fluent Solid Materials (AREA)
  • Arrangements For Transmission Of Measured Signals (AREA)
JP17696481A 1981-10-31 1981-10-31 水位検出装置 Granted JPS5876725A (ja)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP17696481A JPS5876725A (ja) 1981-10-31 1981-10-31 水位検出装置

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP17696481A JPS5876725A (ja) 1981-10-31 1981-10-31 水位検出装置

Publications (2)

Publication Number Publication Date
JPS5876725A JPS5876725A (ja) 1983-05-09
JPS6324248B2 true JPS6324248B2 (US20090177143A1-20090709-C00008.png) 1988-05-19

Family

ID=16022785

Family Applications (1)

Application Number Title Priority Date Filing Date
JP17696481A Granted JPS5876725A (ja) 1981-10-31 1981-10-31 水位検出装置

Country Status (1)

Country Link
JP (1) JPS5876725A (US20090177143A1-20090709-C00008.png)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0288780U (US20090177143A1-20090709-C00008.png) * 1988-12-28 1990-07-13
JPH03106331U (US20090177143A1-20090709-C00008.png) * 1990-02-15 1991-11-01

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0288780U (US20090177143A1-20090709-C00008.png) * 1988-12-28 1990-07-13
JPH03106331U (US20090177143A1-20090709-C00008.png) * 1990-02-15 1991-11-01

Also Published As

Publication number Publication date
JPS5876725A (ja) 1983-05-09

Similar Documents

Publication Publication Date Title
JP6741169B2 (ja) 電源装置、電力制御装置、電源装置のリレー判定方法
US5216288A (en) Water level control circuit for sump pumps and the like
DE4211102C2 (de) Gleichrichter mit kapazitivem Eingang
JPS5894017A (ja) 制御装置
CN110113037B (zh) 过零控制电路及电子设备
US20060208662A1 (en) Low voltage dimmer
CN108988635B (zh) 一种多电平Boost变换器、逆变系统及控制方法
KR102374725B1 (ko) 인버터 회로 및 이를 이용한 공기조화기 및 냉장고
JPS6324248B2 (US20090177143A1-20090709-C00008.png)
JPS6324247B2 (US20090177143A1-20090709-C00008.png)
JPS6331728B2 (US20090177143A1-20090709-C00008.png)
JP7181485B2 (ja) 電源回路
CN219181175U (zh) 一种过压检测电路与空调器
JPH10271688A (ja) インバータ装置
JPS63143406A (ja) 給水制御装置
US20220294257A1 (en) Inductive holding circuit
CN207422770U (zh) 宽电压(7v-60v)低压直流冰箱冷柜温控器
KR930000432B1 (ko) 무정전 전원 공급 장치 및 전원 공급방법
JP2001268917A (ja) 直流電源装置
JPS6016120Y2 (ja) 突入電流防止回路
JPS6377383A (ja) 起動回路
SU1151938A1 (ru) Автоматический регул тор коэффициента мощности
KR930004804Y1 (ko) 스위칭 레귤레이터의 보호회로
KR20220063506A (ko) 직류-직류 컨버터 및 그 제어 방법
JPS626435Y2 (US20090177143A1-20090709-C00008.png)