JPS5548619A - Hot-wire resistor - Google Patents
Hot-wire resistorInfo
- Publication number
- JPS5548619A JPS5548619A JP12285278A JP12285278A JPS5548619A JP S5548619 A JPS5548619 A JP S5548619A JP 12285278 A JP12285278 A JP 12285278A JP 12285278 A JP12285278 A JP 12285278A JP S5548619 A JPS5548619 A JP S5548619A
- Authority
- JP
- Japan
- Prior art keywords
- resistor
- hot
- lead
- substrate
- wire
- 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
- Resistance Heating (AREA)
- Measuring Volume Flow (AREA)
Abstract
PURPOSE: To prevent the external transmission via the substances excepting the air for the heat generated at the resistor for the hot-wire resistor used to the air flow meter by attaching the resistor to the substrate via the lead-out conductor featuring both the spring and heat insulating properties, thus increasing the measurement accuracy.
CONSTITUTION: Hot-wire resistor 38 obtained by forming resistor 31 and lead-out electrode 32 to inorganic bobbin 37 is soldered to lead-out conductor electrode 35 on substrate 34 via lead-out conductor 39 featuring both the spring and heat insulating properties. Thus a hot-wire resistor is formed. The stainless and phosphorus bronze plate (wire) are used for conductor 39 to absorb the size variation due to the heat expansion for both bobbin 37 and substrate 34. Furthermore, such shape and size are secured as to radiate the Joule heat generated at resistor 31 toward the substrate. In this case, length L of resistor 31 is set preferably about 20W80% of the diameter of path 36 for the air measured.
COPYRIGHT: (C)1980,JPO&Japio
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12285278A JPS5548619A (en) | 1978-10-04 | 1978-10-04 | Hot-wire resistor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12285278A JPS5548619A (en) | 1978-10-04 | 1978-10-04 | Hot-wire resistor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS5548619A true JPS5548619A (en) | 1980-04-07 |
Family
ID=14846227
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP12285278A Pending JPS5548619A (en) | 1978-10-04 | 1978-10-04 | Hot-wire resistor |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5548619A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS57173758A (en) * | 1981-04-20 | 1982-10-26 | Hitachi Ltd | Hot wire type current meter |
| JPS61193392A (en) * | 1985-02-20 | 1986-08-27 | リコ−精器株式会社 | Electric heater |
-
1978
- 1978-10-04 JP JP12285278A patent/JPS5548619A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS57173758A (en) * | 1981-04-20 | 1982-10-26 | Hitachi Ltd | Hot wire type current meter |
| JPH045945B2 (en) * | 1981-04-20 | 1992-02-04 | Hitachi Ltd | |
| JPS61193392A (en) * | 1985-02-20 | 1986-08-27 | リコ−精器株式会社 | Electric heater |
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