GB855088A - Improvements in or relating to electronic pulse-counting apparatus - Google Patents
Improvements in or relating to electronic pulse-counting apparatusInfo
- Publication number
- GB855088A GB855088A GB2381658A GB2381658A GB855088A GB 855088 A GB855088 A GB 855088A GB 2381658 A GB2381658 A GB 2381658A GB 2381658 A GB2381658 A GB 2381658A GB 855088 A GB855088 A GB 855088A
- Authority
- GB
- United Kingdom
- Prior art keywords
- capacitor
- pulses
- integrating
- diode
- july
- 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
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R23/00—Arrangements for measuring frequencies; Arrangements for analysing frequency spectra
- G01R23/02—Arrangements for measuring frequency, e.g. pulse repetition rate; Arrangements for measuring period of current or voltage
- G01R23/06—Arrangements for measuring frequency, e.g. pulse repetition rate; Arrangements for measuring period of current or voltage by converting frequency into an amplitude of current or voltage
- G01R23/09—Arrangements for measuring frequency, e.g. pulse repetition rate; Arrangements for measuring period of current or voltage by converting frequency into an amplitude of current or voltage using analogue integrators, e.g. capacitors establishing a mean value by balance of input signals and defined discharge signals or leakage
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Measurement Of Radiation (AREA)
Abstract
855,088. Frequency discriminators. COLE Ltd., E. K., DASTIDAR, P. R., and SHAWFORTH, A. C. July 24, 1959 [July 24, 1958], No. 23816/58. Class 40(5) In order to increase the rate of charge of an integrating capacitor of a ratemeter of the type in which the pulse rate is measured by measuring the mean voltage developed by the pulses across the capacitor, the pulses are also applied to a subsidiary integrating circuit the output of which is then amplified and applied to the main integrating circuit including said capacitor. In Fig. 1, the main integrating capacitor C1 of a meter for use with a radioactive source is provided by means analogous to a "Miller" effect and is charged through a diode pump circuit DPI, the pulses also charging a subsidiary integrating capacitor C2 through a diode pump DP2, the output from capacitor C2 being amplified by a transistor T, and applied to capacitor C1 via capacitor C4. Diode D2 and capacitor C5 effect a rapid discharge of capacitor C, and resistor R1 - R4 apply a bias to diode D1, to prevent minor undesired input pulses affecting C.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB2381658A GB855088A (en) | 1958-07-24 | 1958-07-24 | Improvements in or relating to electronic pulse-counting apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB2381658A GB855088A (en) | 1958-07-24 | 1958-07-24 | Improvements in or relating to electronic pulse-counting apparatus |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB855088A true GB855088A (en) | 1960-11-30 |
Family
ID=10201778
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB2381658A Expired GB855088A (en) | 1958-07-24 | 1958-07-24 | Improvements in or relating to electronic pulse-counting apparatus |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB855088A (en) |
-
1958
- 1958-07-24 GB GB2381658A patent/GB855088A/en not_active Expired
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| GB471731A (en) | Improvements in and relating to pulse-operated thermionic valve apparatus, such for example as frequency dividers, electrical counting arrangements and the like | |
| GB1213634A (en) | Improvements in digital voltmeters | |
| SE324389B (en) | ||
| US2838680A (en) | Transistorized rate meter | |
| GB987235A (en) | Radio altimeters | |
| GB1474110A (en) | Apparatus for setting a counter to a given initial count | |
| ES353495A1 (en) | Frequency-measuring apparatus for the indication of momentary values of the frequency of a series of impulses,especially for medical purposes | |
| US2495072A (en) | Vacuum tube circuit | |
| GB855088A (en) | Improvements in or relating to electronic pulse-counting apparatus | |
| GB1056859A (en) | Improvements in measurement of stresses | |
| GB1091640A (en) | Improvements in and relating to nuclear magnetic resonance spectrographs | |
| GB1302083A (en) | ||
| US3801834A (en) | Analog to pulse width converter | |
| GB1070081A (en) | Improvements in or relating to apparatus for the direct measurement of capacitance | |
| GB1024356A (en) | Time-amplitude converter | |
| GB813491A (en) | Improvements in or relating to radiation intensity measuring apparatus | |
| US2592416A (en) | Indicating device for radioactivity intensity | |
| GB867612A (en) | Improvements in or relating to electronic pulse-counting apparatus | |
| US3727077A (en) | Small-current integrator | |
| SU119625A1 (en) | The method of determining the spectral characteristics of radioactive radiation and the device for its implementation | |
| SU794554A1 (en) | Pulse voltmeter | |
| GB1073378A (en) | Improvements in or relating to pump circuits for ratemeter integrators | |
| US3160818A (en) | Integrator utilizing a blocking oscillator circuit | |
| US2802942A (en) | Pulse integrator and amplifier circuits or the like | |
| Pizer | New pulse encoder |