JPS5536956A - Pressure sensitive apparatus - Google Patents
Pressure sensitive apparatusInfo
- Publication number
- JPS5536956A JPS5536956A JP10912478A JP10912478A JPS5536956A JP S5536956 A JPS5536956 A JP S5536956A JP 10912478 A JP10912478 A JP 10912478A JP 10912478 A JP10912478 A JP 10912478A JP S5536956 A JPS5536956 A JP S5536956A
- Authority
- JP
- Japan
- Prior art keywords
- resistance
- voltage
- point
- pressure sensitive
- output
- 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
- Measuring Fluid Pressure (AREA)
- Pressure Sensors (AREA)
Abstract
PURPOSE: To offer changing a resistance value depending on only a change of mechanical strain of an element, by controlling to equalize a resistance value of P-N junction of pressure sensitive element to a set value.
CONSTITUTION: An adder 11 appears in both ends of a pressure detective circuit 3 by connecting one end of resistance R1 to point b and one end of resistance R2 to point a. Voltage ea at point a and voltage eb at point b are output in addition to differential amplifier 11a. Polar inversion 12 connects one end of resistance R4 to output of the adder 11 and output signal of the circuit 11 inversed by differential amplifier 11a to input to N type substrate 1 of the pressure sensitive element. Circuit 3 detects current change corresponding to resistance change of P type diffusion resistance layer 2 of the pressure sensitive element and output pressure signal. Here, the voltage applied to P-N junction of the substrate 1 is represented as eN and then relation of voltage eN with ea is represented as formula 1 and then if resistances R2∼R5 are settled to satisfy formula 2, the voltage eN only depend on ea. Thus, the voltage of P-N junction can be kept to determined value always.
COPYRIGHT: (C)1980,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP10912478A JPS5536956A (en) | 1978-09-07 | 1978-09-07 | Pressure sensitive apparatus |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP10912478A JPS5536956A (en) | 1978-09-07 | 1978-09-07 | Pressure sensitive apparatus |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS5536956A true JPS5536956A (en) | 1980-03-14 |
Family
ID=14502160
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP10912478A Pending JPS5536956A (en) | 1978-09-07 | 1978-09-07 | Pressure sensitive apparatus |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5536956A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
AU2011200942B2 (en) * | 2010-03-03 | 2015-08-13 | Graeme Hunter | Rotary Engine |
-
1978
- 1978-09-07 JP JP10912478A patent/JPS5536956A/en active Pending
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
AU2011200942B2 (en) * | 2010-03-03 | 2015-08-13 | Graeme Hunter | Rotary Engine |
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