JPS5518917A - Bath sensor - Google Patents
Bath sensorInfo
- 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
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
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)
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 |
-
1978
- 1978-07-27 JP JP9098978A patent/JPS5518917A/en active Pending
Cited By (2)
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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