voltmeter
n. 伏特计,电压表
2025-09-09 18:55 浏览次数 11
n. 伏特计,电压表
DAIICHI Voltmeter指针式电压表
zero voltmeter零电压表
peak voltmeter[电]
precision voltmeter精密电压计
voltmeter switch[电] 伏特计开关
corrosion voltmeter腐蚀伏特计
voltmeter multiplier伏特计倍增器
digital voltmeter[电] 数字电压表;[电] 数字伏特计
autocompensation voltmeter自动补偿电压表
because of the low test current level used, a very sensitive voltmeter is required to measure the voltage drop, which is usually in the microvolt range.
由于所使用的测试电流很低,所以就需要非常灵敏的电压表来测量这种通常在微伏范围的电压降。
ideally, when a voltmeter is connected to a relatively low impedance circuit in which no voltages are present, it should read zero.
在理想的情况下,当把电压表连接到一个没有电压的、阻抗比较低的电路时,电压表的读数应当为零。
high resistance measurements using the constant-current method may be made using either an electrometer voltmeter and current source or just an electrometer ohmmeter.
采用恒流法,可以使用静电计电压表和电流源或者只使用静电计欧姆计来测量高电阻。
copper conductors connect the cells to the voltmeter to minimize errors due to thermoelectric emfs (vemf).
用铜导体将两个电池和电压表相连,以便使热电动势(vemf)引起的误差减到最小。
notice that this is a two-wire resistance measurement compared to using the electrometer voltmeter and external current source, which can make a four-wire measurement.
注意,这种测量方法是两线电阻测量,而使用静电计电压表和外部电流源则可以进行四线测量。
connect a warmed-up sensitive voltmeter or nanovoltmeter to a low volt age calibrator and output zero volts.
将一个已预热的灵敏伏特计或纳伏表连接到一个低压校準器,并输出零伏。
the ohmmeter uses an internal current source and electrometer voltmeter to make the measurement.
欧姆计使用内部的电流源和静电计电压表来进行测量。
if the voltmeter contacts are non-ohmic, they may rectify any ac pickup present and cause a dc offset error.
如果电压表接点有非欧姆接触特性,那么它就可能对出现的任何交流干扰进行整流并引起直流偏置误差。
therefore, a voltmeter with high input resistance, such as an electrometer, is required.
所以需要使用具有高输入电阻的电压表,例如静电计。
picoammeter amplifier gain can be changed as in the voltmeter circuit by using the combination shown in figure 1-11.
和电压表电路一样,可以使用如图1-11所示的组合电路来改变皮安表放大器的增益。
to reduce error due to voltmeter non-ohmic contacts, use shielding and appropriate grounding to reduce ac pickup.
为了降低电压表的非欧姆接触所产生的误差,采用屏蔽和适当的接地措施来降低交流干扰。
for quantitative exploration, the simulations have measurement instruments available, such as a ruler, stop-watch, voltmeter and thermometer.
在定量探测上,模拟有测量工具,例如尺子、码表、伏特计和温度计。
any common-mode current (icm) that may be present flows from the voltmeter input lo to instrument chassis common, through earth ground to voltage source ground.
可能出现的共模电流(icm)从电压表的输入低端流到仪器的机箱公共端,经过大地再流到电压源的地。
many different applications involve switching a voltmeter or voltage source to multiple devices, including testing batteries, electrochemical cells, circuit assem blies, thermocouples, etc.
许多不同的应用都会涉及到将伏特计或电压源切换至多个装置,包括测试电池组、电化电池、电路成套件、热电偶,等等。
if using a separate current source and voltmeter to make low resistance measurements, each instrument must be checked for non-ohmic contacts.
如果使用分离的电流源和电压表来进行低电阻测量,则必须检查每台仪器的非欧姆接触情况。
the voltmeter is an electrical instrument for measurement of voltage.
伏特计是用来测量电压的仪表。
plessey describes epic as essentially a very sensitive, contactless digital voltmeter capable of measuring millivolt changes in electric fields.
plessey将epic电位集成电路描述成一个本质上非常敏感的非接触式数字电压表,它可以测量到电场中的毫伏变化。
if the load resistor was connected directly across the voltmeter input terminals, the current through the relay contacts would cause a voltage drop and the measured cell voltage would be in error.
如果负载电阻被直接连接到伏特计的输入端子,通过继电器触点的电流会产生电压降,测得的电池电压将存在误差。
for example, the voltmeter trigger time and measurement time would also be included in the total system time.
例如,系统的总时间中还包括了伏特计的触发时间和测量时间。