JPS6428538A - Efficiency measurement for hydraulic machine - Google Patents
Efficiency measurement for hydraulic machineInfo
- Publication number
- JPS6428538A JPS6428538A JP18226987A JP18226987A JPS6428538A JP S6428538 A JPS6428538 A JP S6428538A JP 18226987 A JP18226987 A JP 18226987A JP 18226987 A JP18226987 A JP 18226987A JP S6428538 A JPS6428538 A JP S6428538A
- Authority
- JP
- Japan
- Prior art keywords
- water
- hydraulic machine
- measuring
- measurement
- water temperature
- 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
- Testing Of Devices, Machine Parts, Or Other Structures Thereof (AREA)
- Measuring Temperature Or Quantity Of Heat (AREA)
Abstract
PURPOSE:To perform a rational measurement with the elimination of measuring errors due to unevenness of a temperature distribution, by determining water temperature at an inlet and an outlet of a hydraulic machine by measuring an underwater sound velocity to calculate the efficiency of the hydraulic machine from a value of the water temperature. CONSTITUTION:Water introduced with a hydraulic steel pipe 1 is drained to an effluent pool 4 through an inlet valve 2 and a water wheel 3. An output of the water wheel 3 is converted into an electric energy with a dynamotor 5 to be sent to a transmission wire. Ultrasonic sensors 6a and 6b and 7a and 7b are so arranged to allow transmission and reception. Water temperature measuring devices 6c and 7c determine water temperature from a time interval between the transmission and the reception of an ultrasonic wave determined with the sensors 6a and 6b and 7a and 7b and an arithmetic device 10 picks up the results of the measurement of the device 6c and 7c and the results of measurement of an inlet pressure measuring device 8 and an effluent pool water level measuring device 9 to calculate the efficiency of a hydraulic machine by the theory of thermodynamics. This can eliminate measuring errors due to unevenness of a temperature distribution.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP18226987A JPS6428538A (en) | 1987-07-23 | 1987-07-23 | Efficiency measurement for hydraulic machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP18226987A JPS6428538A (en) | 1987-07-23 | 1987-07-23 | Efficiency measurement for hydraulic machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS6428538A true JPS6428538A (en) | 1989-01-31 |
Family
ID=16115305
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP18226987A Pending JPS6428538A (en) | 1987-07-23 | 1987-07-23 | Efficiency measurement for hydraulic machine |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6428538A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102749154A (en) * | 2012-07-27 | 2012-10-24 | 深圳市建恒测控股份有限公司 | Method, device and energy meter for measuring temperature of fluid medium by ultrasonic wave |
| JP2017111140A (en) * | 2015-12-15 | 2017-06-22 | 株式会社堀場製作所 | Flow rate measurement device, fuel consumption measurement device, program for flow rate measurement device, and flow rate measuring method |
-
1987
- 1987-07-23 JP JP18226987A patent/JPS6428538A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102749154A (en) * | 2012-07-27 | 2012-10-24 | 深圳市建恒测控股份有限公司 | Method, device and energy meter for measuring temperature of fluid medium by ultrasonic wave |
| JP2017111140A (en) * | 2015-12-15 | 2017-06-22 | 株式会社堀場製作所 | Flow rate measurement device, fuel consumption measurement device, program for flow rate measurement device, and flow rate measuring method |
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