JPS5543448A - Hot-wire flow meter - Google Patents

Hot-wire flow meter

Info

Publication number
JPS5543448A
JPS5543448A JP11705278A JP11705278A JPS5543448A JP S5543448 A JPS5543448 A JP S5543448A JP 11705278 A JP11705278 A JP 11705278A JP 11705278 A JP11705278 A JP 11705278A JP S5543448 A JPS5543448 A JP S5543448A
Authority
JP
Japan
Prior art keywords
bobbin
hot
resistor
wire
resistance line
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
JP11705278A
Other languages
Japanese (ja)
Inventor
Sadayasu Ueno
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.)
Hitachi Ltd
Original Assignee
Hitachi 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 Hitachi Ltd filed Critical Hitachi Ltd
Priority to JP11705278A priority Critical patent/JPS5543448A/en
Publication of JPS5543448A publication Critical patent/JPS5543448A/en
Pending legal-status Critical Current

Links

Landscapes

  • Measuring Volume Flow (AREA)

Abstract

PURPOSE: To enhance the accuracy of the flow meter by providing a hot-wire resistor of a predetermined structure.
CONSTITUTION: The hot-wire resistance line 1 having a predetermined resistance value and a spredetermined length is welded to the lead wires 2, 2, the end surface of the cylindrical glass bobbin 3 is heated by the burners 4, 5 and both ends of the resistance line 1 is inserted under pressure to the end surface of the bobbin 3. Then, a predetermined load 6 is applied to the resistance line 6, and while the bobbin is rotated in a left direction, the resistance line 1 is wound around the bobbin 3, so that the winding direction of the bobbin 3 and the center portion of the bobbin 3 is made reverse to the turn out and the resistance line 1 is wound around the bobbin 3 at a predetermined pitch to form a hot-wire resistor. In this construction, the resistance value accuracy of the hot-resistor becomes high and the thermal-resistor is non inductive, leading the hot-wire calorimeter to be highly accurate. The trimming of the resistor metal coating provided on the surface of the bobbin produces the thermal resistor of the similar construction.
COPYRIGHT: (C)1980,JPO&Japio
JP11705278A 1978-09-22 1978-09-22 Hot-wire flow meter Pending JPS5543448A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP11705278A JPS5543448A (en) 1978-09-22 1978-09-22 Hot-wire flow meter

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP11705278A JPS5543448A (en) 1978-09-22 1978-09-22 Hot-wire flow meter

Publications (1)

Publication Number Publication Date
JPS5543448A true JPS5543448A (en) 1980-03-27

Family

ID=14702225

Family Applications (1)

Application Number Title Priority Date Filing Date
JP11705278A Pending JPS5543448A (en) 1978-09-22 1978-09-22 Hot-wire flow meter

Country Status (1)

Country Link
JP (1) JPS5543448A (en)

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4964478A (en) * 1972-06-14 1974-06-21

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4964478A (en) * 1972-06-14 1974-06-21

Similar Documents

Publication Publication Date Title
KR870004309A (en) Thermal air flow meter
JPS5543448A (en) Hot-wire flow meter
JPS5568703A (en) Carbon fiber element antenna device
JPS5533671A (en) Lead wire for temperature measuring resistor
DE671273C (en) Heat sensor
JPS5730911A (en) Constant temperature heating type flow rate sensor
JPS5657912A (en) Flow meter of karman vortex
JPS6428521A (en) Heat generating resistor for air flow meter
JPS5420440A (en) Single ended sheath heater & its manufacturing method
JPS57114216A (en) Manufacture of electromagnetic coil
JPS55128156A (en) Electromagnetic flow speed meter
JPS5548614A (en) Hot wire resistor for intake air flow meter of internal combustion engine
JPS5786017A (en) Temperature sensor element
JPS54114968A (en) Manufacture of heater of indirect type cathode
JPS5342876A (en) Temperature measuring method of detecting part
JPS5854577A (en) Sheathed heater
JPS5516437A (en) Tap pick off structure of transformer winding
JPS5773621A (en) Measuring device for quantity of air flow
JPS5663213A (en) Heating resistor of neasuring instrument for sucked air flow rate
JPS5374353A (en) Manufacturing device for electron tube helix
JPS53131960A (en) Coil winding device
GB1249757A (en) Tubular heat exchange element
JPS5543427A (en) Resistance thermometer
JPS5548619A (en) Hot-wire resistor
JPS5666707A (en) Measuring device for flow speed of flow rate