JPS5587958A - Digital effective value meter - Google Patents
Digital effective value meterInfo
- Publication number
- JPS5587958A JPS5587958A JP16334278A JP16334278A JPS5587958A JP S5587958 A JPS5587958 A JP S5587958A JP 16334278 A JP16334278 A JP 16334278A JP 16334278 A JP16334278 A JP 16334278A JP S5587958 A JPS5587958 A JP S5587958A
- Authority
- JP
- Japan
- Prior art keywords
- pulses
- effective value
- counter
- voltage
- frequency converter
- 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.)
- Granted
Links
Abstract
PURPOSE: To perform measurement stable for a long time without caring about drift, by using a voltage-frequency converter, a rate multiplier, etc.
CONSTITUTION: An input signal is squared by a square circuit 10. The squared signal is changed into a number of pulses by a voltage-frequency converter 11. A rate multiplier 12 changes input pulses into those corresponding to a prescribed pulse rate. The latter changed pulses are applied to a counter 13, which sequentially counts the pulses and sends out the counted value to a latch circuit 14 and a memory circuit 15. At every prescribed time, the counted value from the counter 13 is latched by the latch circuit 14 and displayed on an indicator 16 to indicate the effective value of the input signal.
COPYRIGHT: (C)1980,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP16334278A JPS5587958A (en) | 1978-12-26 | 1978-12-26 | Digital effective value meter |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP16334278A JPS5587958A (en) | 1978-12-26 | 1978-12-26 | Digital effective value meter |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS5587958A true JPS5587958A (en) | 1980-07-03 |
JPS6253781B2 JPS6253781B2 (en) | 1987-11-12 |
Family
ID=15772042
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP16334278A Granted JPS5587958A (en) | 1978-12-26 | 1978-12-26 | Digital effective value meter |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5587958A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH07248340A (en) * | 1994-03-10 | 1995-09-26 | Nec Corp | Level detecting circuit |
-
1978
- 1978-12-26 JP JP16334278A patent/JPS5587958A/en active Granted
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH07248340A (en) * | 1994-03-10 | 1995-09-26 | Nec Corp | Level detecting circuit |
Also Published As
Publication number | Publication date |
---|---|
JPS6253781B2 (en) | 1987-11-12 |
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