共找到 294 条与 滤波器、延迟线 相关的标准,共 20 页
Measurements of sky-wave signal intensities, if undertaken in a carefully controlled manner, are of value in assessing the accuracy of methods for estimating field strength and transmission loss.
HF Field-Strength Measurement
1.1 These requirements cover high-efficiency, particulate, air-filter units intended for the removal of very fine particulate matter (not less than 99.97 percent of 0.3 micron diameter particles) from the air of industrial and laboratory exhaust and ventilating systems. 1.2 These requirements cover single air filter units. 1.3 These requirements do not cover multiple assembly air filter units. 1.4 A product that contains features, characteristics, components, materials, or systems new or different from those covered by the requirements in this standard, and that involves a risk of fire or of electric shock or injury to persons shall be evaluated using appropriate additional component and end-product requirements to maintain the level of safety as originally anticipated by the intent of this standard. A product whose features, characteristics, components, materials, or systems conflict with specific requirements or provisions of this standard does not comply with this standard. Revision of requirements shall be proposed and adopted in conformance with the methods employed for development, revision, and implementation of this standard.
High-efficiency, particulate, air filter units
Type SBP301,filters,surface acoustic wave band-pass,detail specification for
Filters,quartz crystal,type LST21.4M,detail specification for
Filters,quartz crystal,type LST25.0425M,detail specification for
Type SMU302,filter bank,surface acoustic wave,detail specification for
Specifies performance requirements for filters of classes 0, 1 and 2 and methods of test to ensure compliance.
Electroacoustics - Octave-band and fractional-octave-band filters
This section of IEC 368-2 describes passive band-pass filters operating over the frequency range of a few kHz to more than 10 MHz which are commercially available as separate and independent units. It is not the aim of this standard to explain theory, nor to attempt to cover all the eventualities which may arise in practical circumstances. This standard draws attention to some of the fundamental questions which should be considered by the user before he places an order for a filter for a new application. Such a procedure will be the user's insurance against unsatisfactory performance.
Piezoelectric filters - Part 2: Guide to the use of piezoelectric filters - Section 2: Piezoelectric ceramic filters
Complete filter units for radio interference suppression - Part 2: Sectional specification - Selection of methods of test and general requirements; Amendment 1
Waveguide type dielectric resonators - Part 1: General information and test conditions - Section 1: General information
Electroacoustics. Octave-band and fractional-octave-band filters.
Filters using waveguide type dielectric resonators - Part 1: General information, standard values and test conditions - Section 1: General information and standard values
This drawing describes device requirements for class B microcircuits in accordance with 1.2.1 of MIL-STD-883, "Provisions for the use of MIL-STD-883 in conjunction with compliant non-JAN devices".
MICROCIRCUIT, LINEAR, LOW NOISE, 8TH ORDER, CLOCK SWEEPABLE CAUER LOW PASS FILTER, MONOLITHIC SILICON
本规范适用于军用电子设备或其他电子设备中使用的LSB 1.4M型边带石英晶体滤波器。
Filter,quartz crystal,sideband,type LSB1.4M,detail specification for
本规范适用于军用电子设备或其他电子设备中使用的LSP 21.4M型石英晶体单片滤波器。
Filter,quartz crystal,monolithic,type LSP21.4M,detail specification for
本标准适用于调频无线电设备中频电路中所用的、有高选择性和高稳定性的压电陶瓷滤波器。
Piezoelectric ceramic filters for use in electronic equipment.Sectional specification for.Piezoelectric ceramic filters for use in FM radios
本标准供型号管理机构确定压电滤波器型号命名时使用。
Type designation system for piezoelectric filters
本标准适用于由压电元件组成的滤波器。
Measurement methods of electrical characteristics for piezoelectric filters
本标准供型号管理机构确定声表面波滤波器型号命名时使用。
Type designation system for surface acoustic wave filters
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