JPS5518917A - Bath sensor - Google Patents

Bath sensor

Info

Publication number
JPS5518917A
JPS5518917A JP9098978A JP9098978A JPS5518917A JP S5518917 A JPS5518917 A JP S5518917A JP 9098978 A JP9098978 A JP 9098978A JP 9098978 A JP9098978 A JP 9098978A JP S5518917 A JPS5518917 A JP S5518917A
Authority
JP
Japan
Prior art keywords
bath
relay
sensor
phototransistor
led
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
JP9098978A
Other languages
Japanese (ja)
Inventor
Jiro Ikenaga
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.)
Kanda Tsushin Kogyo Co Ltd
Original Assignee
Kanda Tsushin Kogyo Co 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 Kanda Tsushin Kogyo Co Ltd filed Critical Kanda Tsushin Kogyo Co Ltd
Priority to JP9098978A priority Critical patent/JPS5518917A/en
Publication of JPS5518917A publication Critical patent/JPS5518917A/en
Pending legal-status Critical Current

Links

Landscapes

  • Level Indicators Using A Float (AREA)
  • Arrangements For Transmission Of Measured Signals (AREA)

Abstract

PURPOSE: To prevent a human body from being damaged by the fall of a thunder- bolt, if any, by forming an electrically large gap in the course of transmitting the signals of a sensor so that a bath may be electrically isolated while optically transmitting and receiving the signals.
CONSTITUTION: A sensor 2 in a bath 1 is electrically connected through a coupling box 3 with a bath warning panel 4. If the water level and temperature of the bath exceed preset values, a contact 5 is closed to light an LED 6. Upon reception of this light, a phototransistor 8 becomes conductive to connect the relay circuit of the warning panel 4, i.e., a relay 9, a bridge rectifier 14, the phototransistor 8 and the relay circuit 9 so that this relay 9 is operated. In response to the operation of this relay 9, a contact 10 is closed to operate a warning lamp 12 and a buzzer 13. In case a thunderbolt falls at the service wire of a transformer 11 when a man takes bath with the sensor 2 being dipped in the bath, his body can be prevented from any damage because there is a sufficient cap formed between the transistor 8 and the LED 6.
COPYRIGHT: (C)1980,JPO&Japio
JP9098978A 1978-07-27 1978-07-27 Bath sensor Pending JPS5518917A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP9098978A JPS5518917A (en) 1978-07-27 1978-07-27 Bath sensor

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP9098978A JPS5518917A (en) 1978-07-27 1978-07-27 Bath sensor

Publications (1)

Publication Number Publication Date
JPS5518917A true JPS5518917A (en) 1980-02-09

Family

ID=14013913

Family Applications (1)

Application Number Title Priority Date Filing Date
JP9098978A Pending JPS5518917A (en) 1978-07-27 1978-07-27 Bath sensor

Country Status (1)

Country Link
JP (1) JPS5518917A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS58190795U (en) * 1982-06-12 1983-12-19 新明工業株式会社 signal converter

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS58190795U (en) * 1982-06-12 1983-12-19 新明工業株式会社 signal converter
JPH0337110Y2 (en) * 1982-06-12 1991-08-06

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