Title:
超音波流量スイッチ
Document Type and Number:
Japanese Patent JP6454600
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To provide an ultrasonic wave flow rate switch that is usable with simple setting operation.SOLUTION: An ultrasonic wave element 710 implements at least transmission out of the transmission of an ultrasonic wave to a fluid body flowing in piping and reception of the ultrasonic wave from the fluid body flowing in the piping, and an ultrasonic wave element 720 implements at least reception out of the transmission of the ultrasonic wave to the fluid body flowing in the piping and the reception of the ultrasonic wave from the fluid body flowing in the piping. On the basis of an output signal of at least one of the ultrasonic wave elements 710 and 720, a flow rate of the fluid body in the piping is calculated as a basic flow rate. Further, a flow rate adjustment value for adjusting the calculated basic flow rate is received, and on the basis of the calculated basic flow rate and the received flow rate adjustment value, a correction flow rate is calculated. On the basis of the calculated correction flow rate and a threshold of a predetermined flow rate, ON/OFF signals are output.SELECTED DRAWING: Figure 3
Inventors:
Ishikawa Kaname
Tomonori Hanada
Tomonori Hanada
Application Number:
JP2015099223A
Publication Date:
January 16, 2019
Filing Date:
May 14, 2015
Export Citation:
Assignee:
Keyence Corporation
International Classes:
H01H35/00; G01F1/66; H01H35/40
Domestic Patent References:
| JP4614666B2 | ||||
| JP5608884B2 | ||||
| JP2011117956A | ||||
| JP11351928A | ||||
| JP5282955B2 | ||||
| JP3103264B2 | ||||
| JP989618A | ||||
| JP4961889B2 | ||||
| JP4919702B2 |
Foreign References:
| US5461931 |
Attorney, Agent or Firm:
Yoshito Fukushima
Sawamura Hideyuki
Sawamura Hideyuki