CA1138932A - Device for measuring and indicating changes in resistance of a living body - Google Patents
Device for measuring and indicating changes in resistance of a living bodyInfo
- Publication number
- CA1138932A CA1138932A CA000335278A CA335278A CA1138932A CA 1138932 A CA1138932 A CA 1138932A CA 000335278 A CA000335278 A CA 000335278A CA 335278 A CA335278 A CA 335278A CA 1138932 A CA1138932 A CA 1138932A
- Authority
- CA
- Canada
- Prior art keywords
- resistance
- transistor
- meter
- emitter follower
- resistive
- 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.)
- Expired
Links
- 239000002184 metal Substances 0.000 claims abstract description 9
- 229910052751 metal Inorganic materials 0.000 claims abstract description 9
- 230000035945 sensitivity Effects 0.000 claims description 7
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 6
- 229910052742 iron Inorganic materials 0.000 claims description 3
- 239000000306 component Substances 0.000 description 3
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 2
- 238000010521 absorption reaction Methods 0.000 description 2
- 229910052799 carbon Inorganic materials 0.000 description 2
- 238000010276 construction Methods 0.000 description 2
- 230000003247 decreasing effect Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- OJIJEKBXJYRIBZ-UHFFFAOYSA-N cadmium nickel Chemical compound [Ni].[Cd] OJIJEKBXJYRIBZ-UHFFFAOYSA-N 0.000 description 1
- 239000003990 capacitor Substances 0.000 description 1
- 239000007795 chemical reaction product Substances 0.000 description 1
- 239000012141 concentrate Substances 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 230000005389 magnetism Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000000615 nonconductor Substances 0.000 description 1
- 230000003405 preventing effect Effects 0.000 description 1
- 230000004044 response Effects 0.000 description 1
- 230000004043 responsiveness Effects 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
- 239000000725 suspension Substances 0.000 description 1
- 239000002966 varnish Substances 0.000 description 1
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R5/00—Instruments for converting a single current or a single voltage into a mechanical displacement
- G01R5/02—Moving-coil instruments
- G01R5/06—Moving-coil instruments with core magnet
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R1/00—Details of instruments or arrangements of the types included in groups G01R5/00 - G01R13/00 and G01R31/00
- G01R1/30—Structural combination of electric measuring instruments with basic electronic circuits, e.g. with amplifier
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R17/00—Measuring arrangements involving comparison with a reference value, e.g. bridge
- G01R17/10—AC or DC measuring bridges
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Measurement Of Resistance Or Impedance (AREA)
- Measurement And Recording Of Electrical Phenomena And Electrical Characteristics Of The Living Body (AREA)
- Measuring Instrument Details And Bridges, And Automatic Balancing Devices (AREA)
- Investigating Or Analysing Biological Materials (AREA)
- Measurement Of Current Or Voltage (AREA)
- Investigating Or Analyzing Materials By The Use Of Electric Means (AREA)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CA000400921A CA1143438A (en) | 1979-03-08 | 1982-04-13 | Device for measuring and indicating changes in resistance of a living body |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US1872779A | 1979-03-08 | 1979-03-08 | |
| US018,727 | 1979-03-08 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CA1138932A true CA1138932A (en) | 1983-01-04 |
Family
ID=21789496
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA000335278A Expired CA1138932A (en) | 1979-03-08 | 1979-09-07 | Device for measuring and indicating changes in resistance of a living body |
Country Status (9)
| Country | Link |
|---|---|
| JP (2) | JPS55119065A (enrdf_load_stackoverflow) |
| AU (1) | AU529659B2 (enrdf_load_stackoverflow) |
| CA (1) | CA1138932A (enrdf_load_stackoverflow) |
| DE (1) | DE2935528C2 (enrdf_load_stackoverflow) |
| DK (1) | DK163385C (enrdf_load_stackoverflow) |
| FR (1) | FR2451037A3 (enrdf_load_stackoverflow) |
| GB (2) | GB2043918B (enrdf_load_stackoverflow) |
| MX (1) | MX150268A (enrdf_load_stackoverflow) |
| ZA (1) | ZA794716B (enrdf_load_stackoverflow) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0095839B1 (en) * | 1982-06-01 | 1986-06-18 | THORN EMI Instruments Limited | An instrument for measuring electrical resistance, inductance or capacitance |
| CN109740616B (zh) * | 2019-01-04 | 2023-01-31 | 山东交通学院 | 一种利用计算机视觉实现双指针仪表自动读数的方法 |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CS157357B1 (enrdf_load_stackoverflow) * | 1972-06-20 | 1974-09-16 |
-
1979
- 1979-09-03 DE DE2935528A patent/DE2935528C2/de not_active Expired
- 1979-09-06 ZA ZA00794716A patent/ZA794716B/xx unknown
- 1979-09-06 MX MX179198A patent/MX150268A/es unknown
- 1979-09-07 GB GB7931038A patent/GB2043918B/en not_active Expired
- 1979-09-07 FR FR7922487A patent/FR2451037A3/fr active Granted
- 1979-09-07 DK DK375879A patent/DK163385C/da active
- 1979-09-07 CA CA000335278A patent/CA1138932A/en not_active Expired
- 1979-09-07 JP JP11506479A patent/JPS55119065A/ja active Pending
- 1979-09-07 AU AU50670/79A patent/AU529659B2/en not_active Expired
-
1982
- 1982-09-08 GB GB08225653A patent/GB2113853B/en not_active Expired
-
1988
- 1988-05-30 JP JP1988071662U patent/JPH0353179Y2/ja not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| GB2113853A (en) | 1983-08-10 |
| GB2043918A (en) | 1980-10-08 |
| JPS55119065A (en) | 1980-09-12 |
| AU5067079A (en) | 1980-09-11 |
| DK163385B (da) | 1992-02-24 |
| JPH0353179Y2 (enrdf_load_stackoverflow) | 1991-11-20 |
| DE2935528C2 (de) | 1983-06-01 |
| AU529659B2 (en) | 1983-06-16 |
| DE2935528A1 (de) | 1980-09-11 |
| DK163385C (da) | 1992-07-13 |
| DK375879A (da) | 1980-09-09 |
| FR2451037B3 (enrdf_load_stackoverflow) | 1981-02-20 |
| JPH0297675U (enrdf_load_stackoverflow) | 1990-08-03 |
| GB2043918B (en) | 1983-04-20 |
| GB2113853B (en) | 1983-12-14 |
| ZA794716B (en) | 1980-08-27 |
| FR2451037A3 (fr) | 1980-10-03 |
| MX150268A (es) | 1984-04-06 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| MKEX | Expiry |